Comparing Restriction Spectrum Imaging (RSI) to Conventional and Abbreviated Breast MRI for Breast Cancer Screening
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 460
- 试验地点
- 1
- 主要终点
- Diagnostic Accuracy of Restriction Spectrum Imaging (RSI) in Comparison to Conventional Breast MRI for Detection of Breast Cancer in the Screening Population.
研究概览
简要总结
This study is looking at a breast cancer screening technique, restriction spectrum imaging (RSI), as a possible alternative to the breast Magnetic Resonance Imaging (MRI) used by most healthcare professionals.
The technique involved in this study is:
-Restriction Spectrum Imaging (RSI)
详细描述
The primary purpose of this research study is to measure RSI's ability to diagnose breast cancer in comparison to standard breast MRIs.
RSI is a technique that has been shown to address the limitations of certain types of MRI exams used to make images of the prostate and brain. RSI is not a FDA-approved technique for screening, but is a type of advanced diffusion technique and diffusion weighted imaging is used as a part of the standard breast MRI. RSI has been shown to improve tumor detection in prostate and brain. For example, a recent pilot study in prostate showed that adding RSI improved the ability to find a certain stage of prostate cancer in comparison to an MRI without the use of the RSI technique. By comparing RSI's ability to diagnose breast cancer, future clinical testing can determine whether RSI is a more efficient way to screen for breast cancer.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Screening
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Group 1 will consist of women who present for screening breast MRI:
- •Age >= 18
- •Asymptomatic for breast disease
- •Presenting for routine breast cancer screening with MRI
- •Group 2 will consist of women who presented for a screening mammogram (2D or 3D tomosynthesis) AND who have had a biopsy recommended after diagnostic workup:
- •Age >= 18
- •Asymptomatic for breast disease
- •Presenting for routine breast cancer screening with mammogram (2D or 3D tomosynthesis) and/or ultrasound
- •Biopsy recommended after subsequent diagnostic workup (BI-RADS 4 or 5)
- •Radiologist Reader Participant
- •Inclusion Criteria
- •Must have clinical experience in interpreting breast MRI.
- •Must have interpreted at least 10 breast MRI exams with RSI interpretation.
排除标准
- •Known or suspected renal insufficiency, rendering the participant unable to safely receive intravenous contrast based on institutional clinical protocol.
- •Renal insufficiency for the purposes of exclusion includes any of the following:
- •Failed Chokye questionnaire
- •Known history of end stage renal disease with EGFR<30 mL/min/1.73m2
- •Point of care (POC) measure of creatinine clearance (eGFR) prior to obtaining the MRI <
- •We will perform this POC test as needed per institutional policy for routine MRI if: (a) no creatinine result is available in the OMR within 30 days of the MRI exam, (b) the patient is > 60 years old, or (c) the patient is on hydroxyurea.
- •History of adverse or allergic-like reaction to gadolinium MRI intravenous contrast, rendering the participant unable to safely receive intravenous contrast based on institutional clinical protocol.
- •Presence of MRI unsafe devices or objects which would make having an MRI unsafe, as per institutional clinical protocol. MRI unsafe devices or objects for the purposes of exclusion include but are not limited to certain intracranial aneurysm clips, cardiac pacemaker, and implantable defibrillator devices, metallic heart valve, or coronary artery stents, breast tissue expanders, bio or neurostimulators, pellets and bullets, ocular implants and devices, otologic and cochlear implants. Other devices or metallic objects may be deemed unsafe for MRI at the radiologist's discretion.
- •Unable to tolerate exam (i.e., secondary to untreatable claustrophobia, positioning constraints/unable to lie prone).
- •Body weight exceeds that allowable by the MRI table.
- •Breast biopsy or surgical intervention planned before the test RSI-MRI in this study.
- •Breast implants (silicone or saline).
- •8. Nursing or thinks she may be or is pregnant, as gadolinium contrast-enhanced MRI is unsafe. We will perform a pregnancy test as needed per institutional policy for routine breast MRI. Per institutional clinical protocol, all females of childbearing potential who are uncertain if they are pregnant or think they are pregnant must have a blood test or urine study within 2 weeks prior to the MRI exam to rule out pregnancy. A female of childbearing potential is any woman, regardless of sexual orientation or prior tubal ligation, who:
- •Has not had a hysterectomy or bilateral oophorectomy OR
- •Has not been naturally post-menopausal for at least 2 years (i.e., has had menses at any time in the preceding 2 years
- •Radiologist Reader Participant
研究组 & 干预措施
Conventional Breast MRI
Standard MRI procedure will be used.
干预措施: MRI (Device)
Restriction Spectrum Imaging
- RSI is a DWI sequence with a built in distortion-correction technique that can be applied to any diffusion technique using echo planar imaging acquisition.
- RSI will be performed using pulsed-field gradient, spin-echo, echo planar imaging with "multi-shell" diffusion data .
- The b0 images will be collected in both the forward and reverse phase encoding directions to allow for post-processing correction of spatial distortion from magnetic field.
干预措施: RSI (Device)
结局指标
主要结局
Diagnostic Accuracy of Restriction Spectrum Imaging (RSI) in Comparison to Conventional Breast MRI for Detection of Breast Cancer in the Screening Population.
时间窗: 2 years
Comparison of participants with cancer in the DCE- MRI group compared to RSI group. Review of the examinations was performed by 3 expert breast imagers and number of cancers detected in each group were compared.
次要结局
未报告次要终点
研究者
Vandana Dialani
Principal Investigator
Beth Israel Deaconess Medical Center