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Focal Ablation System Targets Prostate Conditions

By Medimaging International staff writers
Posted on 03 Jul 2018
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Image: HIFU enables targeted ablation of the prostate (Photo courtesy of EDP TMS).
Image: HIFU enables targeted ablation of the prostate (Photo courtesy of EDP TMS).
A new high intensity focused ultrasound (HIFU) device combines imaging and biopsy data to direct prostate ablation procedures in real time.

The EDAP TMS (Vaulx-en-Velin, France) Focal One HIFU prostate ablation system fuses magnetic resonance imaging (MRI), three dimensional (3D) biopsy data, and real-time ultrasound imaging to provide urologists with detailed 3D images of the prostate. The 3D contours of the prostate are automatically matched to MRI targets and biopsy core locations, and are then displayed relative to the live ultrasound image. The area to be ablated can then precisely defined, with live follow-up of HIFU shots used to adjust treatment in real-time.

The technology allows urologic surgeons to establish precise contours around the diseased tissue and ablate a smaller portion of the prostate, lessening damage to healthy tissue and minimizing the known side effects of incontinence and impotence. Both pre-planning and real-time images are displayed on the large monitor, allowing the surgeon to control precise robotic movements and deliver HIFU using Dynamic Focusing technology to adjust the electronic displacement of the focal point in order to deliver precise ablation.

“Focal One's real-time imaging and 3D robotic features allow for greater precision, leading to improved targeting and treatment planning,” said Marc Oczachowski, CEO of EDAP TMS. “The FDA's clearance of Focal One validates not only the power of our technology but also the years of hard work and dedication by our clinical trial investigators and EDAP's outstanding employees.”

“Focal One is a great step forward in using this new and important ultrasound technology for prostate tissue ablation,” said professor of urology Brian Miles, MD, of Houston Methodist Hospital (HMH; Houston, TX, USA). “Focal One's ability to merge MRI images, ultrasound images, and biopsy data in order to precisely outline and treat just the diseased tissue area of the prostate is truly remarkable.”

HIFU technology is based on nonlinear acoustic mathematical optimization methods to analyze and simulate the propagation of sound in material. The information is then used to enhance the shape of an acoustic lens so that that ultrasound pressure is focused precisely on the location of the tissue to be ablated, while the surrounding tissue retains as little damage as possible.

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