Integrated US-MR fusion images and MR targeted biopsies. What are their role and value in the detection and follow-up of prostate cancer.

Integrated US-MR fusion images and MR targeted biopsies. What are their role and value in the detection and follow-up of prostate cancer. Arch Esp Urol. 2015 Apr;68(3):349-53 Authors: Delongchamps NB, Escourou C, Cornud F Abstract Accuracy of multiparametric MRI has greatly improved the ability of localizing tumor foci of prostate cancer. This property can be used to perform a TRUS-MR image registration, new technological advance, which allows for an overlay of an MRI onto a TRUS image to target a prostate biopsy toward a suspicious area Three types of registration have been developed: cognitive-based, sensor-based, and organ-based registration. Cognitive registration consists of aiming a suspicious area during biopsy with the knowledge of the lesion location identified on multiparametric MRI. Sensor-based registration consists of tracking in real time the TRUS probe with a magnetic device, achieving a global positioning system which overlays in real-time prostate image on both modalities. Organ based registration does not aim to track the TRUS probe, but the prostate itself to compute in a 3D acquisition the TRUS prostate shape, allowing for a registration with the corresponding 3D MRI shape. The concept of an MR-US fusion TB strategy only is gaining more and more widespread acceptance. In a TB only strategy, fewer men could be biopsied overall, with a greater proportion of men diagnosed with clinically significant prostate, as well...
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research