This Article Figures Only Full Text Full Text (PDF) Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Persson, A Articles by Brismar, T B Search for Related Content PubMed PubMed Citation Articles by Persson, A Articles by Brismar, T B

Volume rendering of three-dimensional drip infusion CT cholangiography in patients with suspected obstructive biliary disease: a retrospective study

¹ Center for Medical Image Science and Visualization (CMIV), Linköping University Hospital, Sweden, ² Department of Radiology, Hudiksvall Hospital, Sweden and ³ Department of Radiology, Karolinska University Hospital, Huddinge, Stockholm, Sweden

The purpose of this study was to evaluate the diagnostic potential of prolonged drip infusion CT cholangiography (DIC-CT) using meglumine iotroxate (Biliscopin®) and 3D volume rendering in patients with suspected obstructive biliary disease. From a material of 142 patients who had undergone a drip infusion CT, all cases with a verified surgical or endoscopic retrograde cholangiography (ERC) diagnosis (n=33) were selected. Age-matched controls were selected from the remaining examinations. Three radiologists reviewed all 66 examinations in retrospect, independently as well as in consensus. The image quality and the estimated diagnostic quality were rated as good or moderate in 91% of the 198 reviews. The consensus sensitivity and specificity for diagnosing biliary stones was 88% and 94%, respectively (with sensitivities ranging from 88% to 94% for individual observers, and specificities from 86% to 96%). Two out of three strictures were observed. No false positive strictures were described. The use of volume rendering technique (VRT) improved diagnostic certainty in 28/198 (14%) of the evaluations. The visualization of ductal stones was improved in 18/48 (38%). No differences in diagnostic quality between single and multislice CT were observed. We conclude that a detailed image of the biliary tree with good sensitivity and specificity can be obtained by means of bilirubin-governed infusion time DIC-CT with volume rendering reconstruction.

This article has been cited by other articles:

				N. I. Sainani, O. A. Catalano, N.-S. Holalkere, A. X. Zhu, P. F. Hahn, and D. V. Sahani Cholangiocarcinoma: Current and Novel Imaging Techniques RadioGraphics, September 1, 2008; 28(5): 1263 - 1287. [Abstract] [Full Text] [PDF]