Evaluation of Different Methods of Ultrasound Image Analysis for Real-time Monitoring of HIFU Prostate Cancer Treatment Feasibility Study
The ELASTO-US study is a single center feasibility study to evaluate 3 methods of analyzing real-time ultrasound images acquired during High Intensity Focused Ultrasound (HIFU) treatment in patients with localized prostate cancer. Real-time ultrasound acquisitions will be programmed at specific times and recorded during HIFU treatment. At the end of the treatment, these recordings will be exported in an anonymized way and analyzed according to the 3 different methods. A multiparametric-MRI will be performed in addition to the usual practice within 5 days after the treatment in order to control the area necroticised by the treatment. The mp-MRI will be the reference method against which the results obtained by the 3 methods of ultrasound image analysis will be compared. Techniques capable of providing safe and robust information on the progress of HIFU-generated necrosis would greatly limit the risks of overtreatment that can lead to side effects such as urinary incontinence as well as the risks of under treatment that can lead to cancer recurrence.
• Patient who has been clearly informed of the study and has agreed, with sufficient time for reflection, to participate by signing the study informed consent form.
• Male aged ≥ 50 years,
• PSA ≤ 15 ng/mL
• diagnosis of localized prostate cancer (stage T1 or T2) with a Gleason score of ≤ 7
• Focal, hemiablation or ablation HIFU treatment validated in Multidisciplinary Concerted Meeting
• Patient enrolled in Medicare or equivalent plan.
• Interpretable preoperative multiparametric MRI performed within 180 days prior to surgery