title: Multi-detector row CT of patients with acute intestinal bleeding: a new perspective using multiplanar and MIP reformations from submillimeter isotropic voxels.
abstract: Acute intestinal bleeding is a severe condition, with a mortality rate of up to 40% in case of associated hemodynamic instability. The diagnosis of acute intestinal bleeding is often challenging and to date, there is no definite consensus upon the most appropriate technique for this specific diagnosis. This pictorial essay illustrates our preliminary use of multiplanar (MPR) and maximum intensity projection (MIP) reformations using MDCT scanner with submillimeter and isotropic voxels as an adjunct to axial images in patients with acute intestinal bleeding. MDCT examinations were routinely performed with 64-slice helical CT scanner and images were reconstructed 0.6-mm thickness at 0.5-mm intervals. Multiplanar reconstructions and MIP views were created with a commercially available workstation. Reformatted images from submillimeter isotropic voxels enhanced the depiction of subtle vascular abnormalities and served as a useful adjunct to the axial plane images to improve diagnostic capabilities. Although we are aware that reformatted images should not replace careful analysis of the axial images in patients with acute gastrointestinal bleeding, reformatted images from submillimeter isotropic voxels may clarify the cause of the bleeding, add confidence to image analysis and help interventional radiologists or surgeons improving planning approach.
authors.affiliation: Department of Abdominal Imaging, Hôpital Lariboisière-AP-HP-GHU Nord and Université Paris, France.
authors.forename: Florent
authors.initials: F
authors.lastname: Duchat
authors.forename: Philippe
authors.initials: P
authors.lastname: Soyer
authors.forename: Mourad
authors.initials: M
authors.lastname: Boudiaf
authors.forename: Sophie
authors.initials: S
authors.lastname: Martin-Grivaud
authors.forename: Yann
authors.initials: Y
authors.lastname: Fargeaudou
authors.forename: Philippe
authors.initials: P
authors.lastname: Malzy
authors.forename: Xavier
authors.initials: X
authors.lastname: Dray
authors.forename: Marc
authors.initials: M
authors.lastname: Sirol
authors.forename: Lounis
authors.initials: L
authors.lastname: Hamzi
authors.forename: Marc
authors.initials: M
authors.lastname: Pocard
authors.forename: Roland
authors.initials: R
authors.lastname: Rymer
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003106:Colon / Q000000981:diagnostic imaging; D005260:Female; D005440:Fluid Therapy; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D007421:Intestine, Small / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D012007:Rectum / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*