Conditional Imaging Prescription Strategy as an Alternative to Systematic Unenhanced Computed Tomography for Exploration of Acute Uncomplicated Renal Colic With Lower Radiation Exposure
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 220
- 试验地点
- 2
- 主要终点
- Diagnostic performances (sensitivity,specificity, calculated according to the tested conditional strategies imaging modality)
研究概览
简要总结
Prospective single centre study aiming at validating a conditional imaging strategy for diagnosis of suspected kidney stone.
Consecutive Emergency department patients referred to the medical imaging department for exploration of a suspected acute uncomplicated renal colic will undergo the following interventions : systematic plain abdominal Xray, systematic ultrasonography and systematic unenhanced CT (with a reduced dose scan), in addition to clinical examination and assessment of body mass index and the Sex, Timing, Origin, Nausea, Erythrocytes (STONE) clinical prediction score for symptomatic stone.
Patients will be followed up at 1 month to record the need for urologic intervention and its type.
The performances of different conditional imaging strategy for the diagnosis of suspected renal colic will be assessed retrospectively. The conditional strategies tested will be based on the patient's stone score and BMI and targeted use of combined plain X-ray and ultrasonography and/or unenhanced CT.
The reference diagnosis for renal colic will be made according to the finding of a ureteral stone or indirect signs of urolithiasis at unenhanced CT.
详细描述
Plain abdominal Xray, Ultrasonography and unenhanced CT of the abdomen and pelvis will be performed at the time of admission to the imaging department, within 2 days from ED visit and within a 1 hour delay from each other.
Ultrasonography will be interpretated in combination to plain abdominal Xray, and independently from unenhanced CT, by two experienced radiologists blinded to the results of each other.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
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
- 未提供
排除标准
- 未提供
结局指标
主要结局
Diagnostic performances (sensitivity,specificity, calculated according to the tested conditional strategies imaging modality)
时间窗: Baseline
Different conditional strategies will be evaluated a posteriori based on the targeted use or not of ultrasonography combined to plain X-ray and/or unenhanced CT, according to the patient's STONE score and BMI. The reference diagnosis for renal colic will be made according to the finding of a ureteral stone or indirect signs of urolithiasis at unenhanced CT (gold standard imaging modality)
次要结局
- Radiation exposure dose according to the different imaging strategies tested(Baseline)
- Diagnostic performances of the tested conditional strategies for alternative diagnosis(Baseline)
- Diagnostic performances of the tested conditional strategies for the diagnosis of ureteral stone in patients with urethral stone who benefited from urologic management(Baseline)