M. Kusunoki et al., PREOPERATIVE, DETECTION OF LOCAL EXTENSION OF CARCINOMA OF THE RECTUMUSING MAGNETIC-RESONANCE-IMAGING, Journal of the American College of Surgeons, 179(6), 1994, pp. 653-656
BACKGROUND: We evaluated the ability of magnetic resonance imaging (MR
I) to define local extension of rectal carcinoma. STUDY DESIGN: Thirty
-three patients with rectal carcinoma were preoperatively assessed by
MRI. RESULTS: When sagittal or coronal images, or both, were added to
transverse images as needed, the sensitivity rate was 84.2 percent and
the specificity rate was 92.9 percent. False-positive results when us
ing only transverse images were mainly related to slight extramural sp
read, to an anterior location in the lower rectum (partial volume effe
ct), and to massive extramural spread of the middle rectal tumors. CON
CLUSION Preoperative MRI was helpful to define tumor extension three-d
imensionally.