Abstract:A system for computerised analysis of ultrasonographic prostate images (AUDEX Automated Urologic Diagnostic EXpert system) for the detection of prostate carcinoma was developed. The ultimate goal is to develop a system that is reliable and non-observer dependent. Results of an earlier study with a small group were encouraging and this study describes the results of the computerised analysis in a larger group. Sixty-two patients who were scheduled to undergo a radical prostatectomy were prospectively analysed. … Show more
“…Conventional transrectal US has limited sensitivity and specificity ranging from 40% to 50% for cancer detection (26)(27)(28). Other transrectal US techniques, such as contrast materialenhanced US, are currently being evaluated (29,30).…”
Use of a 35-kPa threshold at SWE may provide additional information for the detection and biopsy guidance of prostate cancer, enabling a substantial reduction in the number of biopsies while ensuring that few peripheral zone adenocarcinomas are missed.
“…Conventional transrectal US has limited sensitivity and specificity ranging from 40% to 50% for cancer detection (26)(27)(28). Other transrectal US techniques, such as contrast materialenhanced US, are currently being evaluated (29,30).…”
Use of a 35-kPa threshold at SWE may provide additional information for the detection and biopsy guidance of prostate cancer, enabling a substantial reduction in the number of biopsies while ensuring that few peripheral zone adenocarcinomas are missed.
“…In addition, TRUS is widely used for needle biopsies and for guiding manipulations in subsequent treatments, such as brachytherapy and HIFU and laser therapies. TRUS helps to ensure that specific parts of the prostate are sampled or targeted, but its role in identifying tumor foci is very limited [11]. Currently, MRI is the gold standard for the morphometric evaluation of the prostate because it provides the best depiction of both the gland contours and the internal zonal anatomy.…”
Section: Extraction Of Characteristics and Knowledgementioning
Computer technology is widely used for multimodal image analysis of the prostate gland. Several techniques have been developed, most of which incorporate a priori knowledge extracted from organ features. Knowledge extraction and modeling are multi-step tasks. Here, we review these steps and classify the modeling according to the data analysis methods employed and the features used. We conclude with a survey of some clinical applications where these techniques are employed.
“…87 Its drawback, however, is the limited usefulness to delineate cancer foci. [88][89][90] In clinics, TRUS is mainly employed to guide prostate biopsies to ensure an all-aspect sampling, and the sensitivity of TRUS-guided sextant biopsy for cancer detection is around 60%. 87 In one clinical trial, a total of 286 patients with suspected prostate cancer were subjected to evaluation studies with TRUS prostate biopsy and the sextant biopsy technique, 91 and the results indicated that the application of TRUS could significantly improve the detection rate of biopsy.…”
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