INTRODUCTION Benign prostatic hyperplasia is a common disease of ageing men worldwide. Though transrectal ultrasonography (TRUS) is the standard in most parts of the world in evaluation of benign prostatic hyperplasia (BPH), it is rarely done in some less developed countries because of non availability of appropriate probes and or specialists. Transabdominal ultrasonography (TAUS) remains the m...

The fi rst stages of prostate cancer screening and diagnosis involve a digital rectal examination and prostate-specifi c antigen (PSA) test, followed by a transrectal ultrasound (TRUS) examination and, if necessary, a TRUS-guided biopsy. Since the accuracy of TRUS in depicting prostate cancer is insuffi cient, biopsies are generally not lesion-targeted. Instead, the vast majority of biopsies ar...

In the early 1990's when systematic biopsy of prostate using transrectal ultrasonography (TRUS) had just begun, there was enthusiasm for identifying abnormalities and obtaining appropriate samples. Since the occurrences of early small prostate cancer are increasing and identifying tumors using TRUS are somewhat subjective, the efficiency of the method in detecting and staging prostate cancer ha...

The new treatments for prostate cancer require precise localization of disease, but routinely used imaging techniques are not sensitive or specific enough for accurate staging. Gray-scale transrectal ultrasound has a sensitivity of 30% to 50% and specificity of 77% to 90% for local staging and tumor localization, and 1.5T MRI has a joint sensitivity and specificity of 71% to 74% for conventiona...

INTRODUCTION : We describe a new simulator for teaching transrectal ultrasound (TRUS) and present the results of a preliminary evaluation of the simulator's realism and usefulness for training. METHODS : A simulator for abdominal ultrasound was adjusted by the developer to enable simulation of TRUS by providing an opening for inserting a dummy rectal probe. To enable TRUS simulation, data fro...

BACKGROUND Prostate brachytherapy consists in placing radioactive seeds for tumour destruction under transrectal ultrasound imaging (TRUS) control. It requires prostate delineation from the images for dose planning. Because ultrasound imaging is patient- and operator-dependent, we have proposed to fuse MRI data to TRUS data to make image processing more reliable. The technical accuracy of this ...

Ultrasonografia będzie nadal wiodącą metodą w biopsji transrektalnej gruczołu krokowego pod kontrolą ultrasonografii (transrectal ultrasound, TRUS). Niemniej jednak obrazy ultrasonograficzne są gorszej jakości i mniej dokładne niż obrazy MR. Poza większym kontrastem tkanek miękkich i uzyskiwaniem obrazów o dużej rozdzielczości, rezonans magnetyczny umożliwia kompleksową ocenę tkanek: na przykła...

Objective: Transrectal ultrasound (TRUS)-guided prostate biopsy is the standard technique for diagnosing prostate cancer and is one of the most commonly performed procedures by practicing urologists. Despite its widespread use, there are still no universally recognized standards for number of biopsy cores obtained, antibiotic and bowel preparation, or PSA threshold for recommending biopsy. In t...

While ultrasound guided prostate brachytherapy has gained wide acceptance as a primary treatment tool for prostate cancer, quality assurance of the ultrasound guidance system has received very little attention. Task Group 128 of the American Association of Physicists in Medicine was created to address quality assurance requirements specific to transrectal ultrasound used for guidance of prostat...