Mechanically assisted 3D ultrasound guided prostate biopsy ... | 合法醫療器材資訊網

由JBax著作·2008·被引用149次—Therearecurrentlylimitationsassociatedwiththeprostatebiopsyprocedure,whichisthemostcommonlyusedmethodforadefinitivediagnosisofprostate ...

There are currently limitations associated with the prostate biopsy procedure, which is the most commonly used method for a definitive diagnosis of prostate cancer. With the use of two-dimensional (2D) transrectal ultrasound (TRUS) for needle-guidance in this procedure, the physician has restricted anatomical reference points for guiding the needle to target sites. Further, any motion of the physicians hand during the procedure may cause the prostate to move or deform to a prohibitive extent. These variations make it difficult to establish a consistent reference frame for guiding a needle. We have developed a 3D navigation system for prostate biopsy, which addresses these shortcomings. This system is composed of a 3D US imaging subsystem and a passive mechanical arm to minimize prostate motion. To validate our prototype, a series of experiments were performed on prostate phantoms. The 3D scan of the string phantom p...