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Study Finds MRI Vital in Surgical Planning for Rectal Cancer Patients Leesburg, VA -- June 6, 2008 -- Three Tesla (3T) magnetic resonance imaging (MRI) can accurately stage, and help surgeons plan sphincter-sparing surgery in patients with rectal cancer, according to a recent study conducted by researchers at Qilu Hospital of Shandong University, Shandong, China. "Recently, MRI has been increasingly accepted by radiologists, surgeons, and patients to image the rectum because of its superior soft-tissue contrast and multi-planar capability," said Chuanfu Li, MD, Qilu Hospital of Shandong University, lead author of the study. "Most rectal MRI studies have used field strength of 1.5 Tesla or less. Only 2 recent studies focus on 3T MRI for diagnosing and staging rectal cancer. "No standard protocol is available for 3T MRI of the rectum, which may cause inconsistent diagnostic accuracy among institutions. The purpose of this study was to evaluate the image quality of various 3T MRI sequences for preoperative staging and planning of sphincter-sparing rectal cancer resection," he said. The study included 39 patients, who underwent 3T MRI. According to the study, rectal carcinoma was identified on MRI and confirmed histologically in all 39 patients. The study showed that MRI findings correctly identified 31 of 32 resectable cases, and sphincter-sparing approaches were accurately chosen on the basis of the MRI findings. "In addition to accurate tumour staging, MRI contributes to surgical planning by showing the relationship of tumour to the sphincter and levator ani muscles on good quality coronal and sagittal images," said Dr. Li. "This technique can give the surgeons a higher level of confidence," he said. SOURCE: American Journal of Roentgenology E-mail this page to a friend or colleague! To print, use this version