Defining Dosimetric Reference Levels in Computed Tomography Spectral Scanning
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 发起方
- 入组人数
- 9,600
- 试验地点
- 1
- 主要终点
- Dosimetric reference levels for spectral computed tomography examinations in France: Extremities CT scan. DLP
研究概览
简要总结
Spectral computed tomography or dual-energy CT imaging can overcome the limitations of conventional CT in differentiating between two materials with equivalent total attenuation. It can generate several types of images, such as virtual monochromatic images, which improve the contrast-to-noise ratio for low energy levels and reduce artifacts for high energy levels. It also allows for quantitative image analysis and thus better characterization of lesions and tissues through material mapping (e.g., iodinated contrast agent mapping). This technique is increasingly used in routine clinical practice thanks to improvements in image flow management and technological advances. It also involves exposing patients to ionizing radiation, as with conventional CT but, unlike conventional CT scans, for which dosimetric reference levels (RLs) are defined for the most common examinations in France (RL decree dated 2019), there are currently no dosimetric reference levels for examinations performed using this technique. Yet RLs are an important and effective tools for optimizing patient exposure to ionizing radiation. Several articles were published between 2012 and 2017 when the first dual-energy scanners arrived in clinics. However, the results presented in these studies are now far removed from recent practices, as they do not take into account the latest technological developments used in dual-energy scanners, which reduce X-ray doses.
The main objective of the study is to define dosimetric reference levels for the most commonly performed spectral computed tomography examinations in France.
详细描述
Spectral computed tomography (CT) (or dual-energy CT) imaging can overcome the limitations of conventional CT in differentiating between two materials with equivalent total attenuation. It can generate several types of images, such as virtual monochromatic images, which improve the contrast-to-noise ratio for low energy levels and reduce artifacts for high energy levels. It also allows for quantitative image analysis and thus better characterization of lesions and tissues through material mapping (e.g., iodinated contrast agent mapping). This technique is increasingly used in routine clinical practice thanks to improvements in image flow management and technological advances. It also involves exposing patients to ionizing radiation, as with conventional CT.
However, unlike conventional CT scans, for which dosimetric reference levels (RLs) are defined for the most common examinations in France (RL decree dated 2019), there are currently no dosimetric reference levels for examinations performed using this technique. Yet the RL is an important and effective tool in optimizing patient exposure to ionizing radiation. In fact, a number of articles were published between 2012 and 2017, when the first dual-energy scanners arrived in clinics. However, the results presented in these studies are now far removed from recent practices, as they do not take into account the latest technological developments used in dual-energy scanners, which reduce X-ray doses.
The main objective of the study is to define dosimetric reference levels for the most frequently performed spectral computed tomography examinations in France:
- Chest CT for pulmonary embolism
- Chest CT for other indications
- Coronary CT with contrast injection and retrospective gating
- Coronary CT with contrast injection and prospective gating
- Cranial CT with contrast injection
- Supra-aortic trunk CT
- Neck and ear,nose and throat sphere CT with contrast injection
- Oncological abdomen-pelvis CT scan
- Abdomen-pelvis CT scan to check for kidney stones
- Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones
- Oncological chest-abdomen-pelvis CT scan
- Non-oncological chest-abdomen-pelvis CT scan
- Oncological chest-abdomen CT scan
- Non-oncological chest-abdomen CT scan
- Lower limb angiography
- Cervical spine CT scan
- Thoracic spine CT scan
- Lumbar spine CT scan
- Pelvis CT scan,
- Extremities CT scan
The secondary objectives of the study are to evaluate, for each examination performed:
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult male/female patient (≥ 18 years old)
- •Body Mass Index (BMI) between 18 and 35 kg/m²
- •Patients who underwent a spectral CT scan between January 1, 2023, and August 31, 2024, as part of their treatment.
排除标准
- •- Pregnant women
结局指标
主要结局
Dosimetric reference levels for spectral computed tomography examinations in France: Extremities CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm will be recorded
Dosimetric reference levels for spectral computed tomography examinations in France: Chest CT for pulmonary embolism. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Chest CT for other indications. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Chest CT for pulmonary embolism. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Chest CT for other indications. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Neck and ear,nose and throat sphere CT with contrast injection. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Coronary CT with contrast injection and retrospective gating. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Coronary CT with contrast injection and prospective gating. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Supra-aortic trunk CT. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Lumbar spine CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Pelvis CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Cranial CT with contrast injection. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Cranial CT with contrast injection. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Supra-aortic trunk CT. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Neck and ear,nose and throat sphere CT with contrast injection. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Oncological abdomen-pelvis CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Oncological abdomen-pelvis CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Abdomen-pelvis CT scan to check for kidney stones. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Abdomen-pelvis CT scan to check for kidney stones. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Non-oncological chest-abdomen CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Thoracic spine CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Oncological chest-abdomen-pelvis CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Oncological chest-abdomen-pelvis CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Oncological chest-abdomen CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Non-oncological chest-abdomen-pelvis CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Cervical spine CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Cervical spine CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Lumbar spine CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Non-oncological chest-abdomen-pelvis CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Non-oncological chest-abdomen CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Lower limb angiography. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Lower limb angiography. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Oncological chest-abdomen CT scan. DLP
时间窗: Periprocedural
Dose length product (DLP) expressed in mGy.cm
Dosimetric reference levels for spectral computed tomography examinations in France: Pelvis CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Extremities CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
Dosimetric reference levels for spectral computed tomography examinations in France: Thoracic spine CT scan. CTDIvol
时间窗: Periprocedural
Computed tomography dose index (CTDIvol) per acquisition expressed in milligray (mGy).
次要结局
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for pulmonary embolism. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for pulmonary embolism. CTDIvol(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for pulmonary embolism. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for pulmonary embolism. Acquisition parameters. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for pulmonary embolism. Acquisition parameters, kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for pulmonary embolism. Acquisition parameters, mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for pulmonary embolism. Acquisition parameters. Helical pitch(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for other indications. Acquisition type(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for other indications. BMI(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for other indications. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for other indications. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for other indications. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for other indications. Acquisition parameters, kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for other indications. Acquisition parameters, mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for other indications. Acquisition parameters, rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Chest CT for other indications. Acquisition parameters, helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Chest CT for other indications. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Coronary CT with contrast injection and retrospective gating. Acquisition type(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Cranial CT with contrast injection. BMI(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Coronary CT with contrast injection and retrospective gating. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Coronary CT with contrast injection and retrospective gating. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Coronary CT with contrast injection and retrospective gating. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Coronary CT with contrast injection and retrospective gating. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Coronary CT with contrast injection and retrospective gating. Acquisition parameters, kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Coronary CT with contrast injection and retrospective gating. Acquisition parameters, mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Coronary CT with contrast injection and retrospective gating. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Coronary CT with contrast injection and retrospective gating. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Coronary CT with contrast injection and retrospective gating. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cranial CT with contrast injection. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cranial CT with contrast injection. Number of acquisitions(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Cranial CT with contrast injection. Rotation time(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cranial CT with contrast injection. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Cranial CT with contrast injection. Acquisition parameters, kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Cranial CT with contrast injection. Acquisition parameters, mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Cervical spine CT scan. Acquisition parameters. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Cervical spine CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Thoracic spine CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Thoracic spine CT scan. Number of acquisitions(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Thoracic spine CT scan. BMI(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Thoracic spine CT scan. CTDIvol(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lumbar spine CT scan. BMI(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Thoracic spine CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Thoracic spine CT scan. Acquisition parameters (kV)(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Thoracic spine CT scan. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Thoracic spine CT scan. Acquisition parameters (mAs)(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Thoracic spine CT scan. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Thoracic spine CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lumbar spine CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lumbar spine CT scan. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Pelvis CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lumbar spine CT scan. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lumbar spine CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lumbar spine CT scan. Acquisition parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lumbar spine CT scan. Acquisition parameters. mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lumbar spine CT scan. Acquisition parameters. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lumbar spine CT scan. Acquisition parameters. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients: Lumbar spine CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Pelvis CT scan. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Pelvis CT scan. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Pelvis CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Pelvis CT scan. BMI.(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Pelvis CT scan. Acquistion parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Pelvis CT scan. Acquistion parameters. mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Pelvis CT scan. Acquistion parameters. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Pelvis CT scan. Acquistion parameters. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Pelvis CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Extremities CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Extremities CT scan. Number of acquisitions(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Extremities CT scan. Acquisition parameters. mAs(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Extremities CT scan. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Extremities CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Extremities CT scan. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Extremities CT scan. Acquisition parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Extremities CT scan. Acquisition parameters. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients: Cranial CT with contrast injection. Helical pitch(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Extremities CT scan. Acquisition parameters. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients: Extremities CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Cranial CT with contrast injection. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Supra-aortic trunk CT. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Supra-aortic trunk CT. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Supra-aortic trunk CT. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Supra-aortic trunk CT. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Supra-aortic trunk CT. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Supra-aortic trunk CT. Acquisition parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Supra-aortic trunk CT. Acquisition parameters. mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Supra-aortic trunk CT. Acquisition parameters. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Supra-aortic trunk CT. Acquisition parameters. Helical pitch(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Neck and ear, nose and throat sphere CT with contrast injection. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Neck and ear, nose and throat sphere CT with contrast injection. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Neck and ear, nose and throat sphere CT with contrast injection. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Neck and ear, nose and throat sphere CT with contrast injection. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Neck and ear, nose and throat sphere CT with contrast injection. BMI(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Neck and ear, nose and throat sphere CT with contrast injection. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological abdomen-pelvis CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological abdomen-pelvis CT scan. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological abdomen-pelvis CT scan. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological abdomen-pelvis CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological abdomen-pelvis CT scan. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological abdomen-pelvis CT scan. Acquisition parameters (kV)(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological abdomen-pelvis CT scan. Acquisition parameters (mAs)(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological abdomen-pelvis CT scan. Acquisition parameters. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological abdomen-pelvis CT scan. Acquisition parameters. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients: Oncological abdomen-pelvis CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan to check for kidney stones. Acquisition type an(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan to check for kidney stones. Number of acquisitions an(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan to check for kidney stones. CTDIvol an(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan to check for kidney stones. DLP an(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan to check for kidney stones. BMI an(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan to check for kidney stones. Acquisition parameters. Kv an(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan to check for kidney stones. Acquisition parameters. mAs an(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan to check for kidney stones. Rotation time an(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan to check for kidney stones. Helical pitch an(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Abdomen-pelvis CT scan to check for kidney stones. Type of reconstruction algorithm an(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. Acquisition parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. Acquisition parameters. mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Abdomen-pelvis CT scan for non-oncological purposes and to check for kidney stones. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen-pelvis CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen-pelvis CT scan. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen-pelvis CT scan. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen-pelvis CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen-pelvis CT scan. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen-pelvis CT scan. Acquisition parameters. kV(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen-pelvis CT scan. CDTIvol(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen-pelvis CT scan. Acquisition parameters. mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen-pelvis CT scan. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen-pelvis CT scan. Helical pitch(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen-pelvis CT scan. Number of acquisitions.(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Oncological chest-abdomen-pelvis CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen-pelvis CT scan. Acquisition type.(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen-pelvis CT scan. Acquisition parameters. kV(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen CT scan. Number of aquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen-pelvis CT scan. CDTIvol. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen-pelvis CT scan. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen-pelvis CT scan. Acquisition parameters. mAs(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen-pelvis CT scan. Acquisition parameters. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen-pelvis CT scan. Acquisition parameters. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Non-oncological chest-abdomen-pelvis CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen CT scan. Aquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen CT scan. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Oncological chest-abdomen CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen CT scan. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen CT scan. Acquisition parameters (kV)(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen CT scan. Acquisition parameters (mAs)(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen CT scan. Rotation time(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Oncological chest-abdomen CT scan. Helical pitch(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Oncological chest-abdomen CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen CT scan. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen CT scan. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Non-oncological chest-abdomen CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen CT scan(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen CT scan. Acquisition parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Non-oncological chest-abdomen CT scan. Acquisition parameters. mAs(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients: Non-oncological chest-abdomen CT scan. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lower limb angiography. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lower limb angiography. Number of acquitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lower limb angiography. CTDIvol(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lower limb angiography. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lower limb angiography. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lower limb angiography. Acquisition parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Lower limb angiography. Acquisition parameters. mAs(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lower limb angiography. Rotation time(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lower limb angiography. Helical pitch(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Lower limb angiography. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cervical spine CT scan. Acquisition type(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cervical spine CT scan. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cervical spine CT scan. CDTIvol(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Cervical spine CT scan. Acquisition parameters. mAs(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cervical spine CT scan. DLP(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Cervical spine CT scan. BMI(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Cervical spine CT scan. Acquisition parameters. kV(Periprocedural)
- Impact of patients' BMI on the dose delivered to patients : Cervical spine CT scan. Acquisition parameters. Rotation time(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for pulmonary embolism. Number of acquisitions(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Chest CT for pulmonary embolism. DLP(Periprocedural)
- Impact of reconstruction algorithms on the dose delivered to patients : Chest CT for pulmonary embolism. Type of reconstruction algorithm(Periprocedural)
- Impact of the spectral acquisition/detection technique on the dose delivered to patients: Cranial CT with contrast injection. CTDIvol(Periprocedural)