Die mesenteriale Ischämie - diagnostische CT-Parameter im Vergleich
Purpose: The purpose of study was to compare the diagnostic value of a thick slap MIP projection in patients with mesenteric ischemia. Materials and methods: 36 individuals suspect of having mesenteric ischemia were included in the study. Standard biphasic (arterial and venous phase) computed tomography was performed in all patients. Two readers read the datasets twice in a randomized order. Reader 1 was a medical student, reader 2 an experienced radiologist. In the first read, the readers were instructed to read the datasets with the thick slap MIP projection, in the second read without MIP projection. Results: 26 out of the 36 patients turned out to have mesenteric ischemia confirmed by surgery and histopathology. Of the 26 patients having mesenteric ischemia, two turned out to have a non-occlusive disease. Sensitivity in detecting mesenteric ischemia was 76 % using the MIP projection and also without MIP projection and for reader 1. Specificity was 100 % for both reading methods. For reader 2 sensitivity without MIP projection was 76 % but 92 % without MIP projection. However, reader 2 increased specificity form 83 % up to 90 % using the MIP projection. Conclusion: A thick slap MIP projection does not increase readers sensitivity in detecting mesenteric ischemia. However, the experienced reader was able to increase specificity.
Erstellung / Fertigstellung
Normierte SchlagwörterComputertomographie [GND]
Models, statistical [MeSH]
Tomography, X-ray computed [MeSH]