Virtual colonoscopy by MRI: state-of-the-art and future directions.
MR colonography has been shown to be an appropriate diagnostic tool for the detection of colorectal lesions. The technique is based on the acquisition of T1-weighted sequences after the administration of water enema and the intravenous administration of paramagnetic contrast. This article describes the technical requirements for MR colonoscopy and the procedures of data acquisition and image interpretation. The advantages and drawbacks of MR colonoscopy also are outlined.
Lauenstein
Thomas C
TC
Department of Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45122 Essen, Germany. thomas.lauenstein@uni-essen.de
Ajaj
Waleed
W
Kuehle
Christiane A
CA
D003111:Colonic Polyps / Q000175:diagnosis; D023881:Colonography, Computed Tomographic / Q000379:methods*; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D005243:Feces; D006801:Humans; D008279:Magnetic Resonance Imaging; D012680:Sensitivity and Specificity; D012984:Software