the purpose of this study is to investigate the age -related improvement of defecation function in high type anorectal malformation in relation to the assessment of the internal anal sphincter. the function of defecation was studied every 5 years up to 15 years postoperatively according to the japanese scoring system in our hospital in 50 patients operated for high type (recto-urethral fistula)...

OBJECTIVE To compare the use of endorectal plus phased-array coils with use of phased-array coil alone with respect to the accuracy of magnetic resonance imaging for detecting mesorectal involvement of rectal cancer. DESIGN Retrospective study. SETTING A tertiary referral centre in Hong Kong. PATIENTS Ethnic Chinese patients with rectal adenocarcinoma who underwent staging magnetic resona...

OBJECTIVE Our goal was assessment of the preoperative staging of rectal carcinoma with MR with double surface coil, MR with endorectal coil, and intrarectal ultrasound (IUS) as correlated with histopathologic findings. MATERIALS AND METHODS Fifteen patients with rectal carcinoma had preoperative evaluation using intrarectal ultrasound (all 15 patients), MR with double surface coil alone (6 pa...

Complex rectovaginal fistulas are uncommon but can be very difficult to manage. There are various techniques for repair, including endorectal advancement flaps, transperineal and transvaginal approaches, and fistula plugs, with varying success rates from 50-60% for the primary procedure to >70% after multiple procedures (1, 2, 3). For women with inflammatory bowel disease, history of radiation,...

PURPOSE A barrier to the acceptance of active surveillance for men with prostate cancer is the risk of underestimating the cancer burden on initial biopsy. We assessed the value of endorectal magnetic resonance imaging in predicting upgrading on confirmatory biopsy in men with low risk prostate cancer. MATERIALS AND METHODS A total of 388 consecutive men (mean age 60.6 years, range 33 to 89) ...

Introduction: The stiffness of malignant prostate tissue is elevated as compared to normal or benign tissue, which suggests that the biomechanical properties of prostate tissue may be an independent marker for prostate cancer. Using dynamic MR elastography, micrometer amplitude shear waves are propagated into tissue, and the resulting tissue displacements are measured to calculate the underlyin...