title: Semiautomated MIP images created directly on 16-section multidetector CT console for evaluation of living renal donors.
abstract: Institutional Review Board approval was obtained and informed consent was waived for this HIPAA-compliant study. The aim of this study was to retrospectively compare the accuracy of semiautomated maximum intensity projection (MIP) images created at a 16-section multidetector CT console with three-dimensional (3D)-workstation-generated images for the definition of renal donor anatomy, with intraoperative findings as a reference standard. In examining 40 renal donors (21 men and 19 women; age range, 24-56 years; mean age, 40.4 years), the sensitivity and accuracy for mapping donor anatomy by two readers were greater than 95%, interobserver agreement was excellent (kappa = 0.89-1.00). The 95% confidence interval for sensitivity was also calculated. Simple MIPs compared well with 3D-workstation images. MIPs from a predesigned protocol on the scanner console were generated more quickly than similar images from 3D workstations; postprocessing demands (eg, for renal donors) can be quickly fulfilled at the scanner console itself. The average time to generate simple MIPs at the console was 3.4 minutes (range, 1.7-4.4 minutes), and 22.3 minutes (range, 15-30 minutes) to create images at the 3D workstation.
authors.affiliation: Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, White 270, Boston, MA 02114, USA.
authors.forename: Anand Kumar
authors.initials: AK
authors.lastname: Singh
authors.forename: Dushyant V
authors.initials: DV
authors.lastname: Sahani
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Kagay
authors.forename: Sanjeeva P
authors.initials: SP
authors.lastname: Kalva
authors.forename: Mukta C
authors.initials: MC
authors.lastname: Joshi
authors.forename: Nahel
authors.initials: N
authors.lastname: Elias
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Kawai
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging*; D016031:Liver Transplantation; D019520:Living Donors; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy; D011856:Radiographic Image Enhancement / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted; D011873:Radiology Information Systems; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014584:User-Computer Interface