AJR Join ARRS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Paulson, E. K.
Right arrow Articles by Meyers, W. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Paulson, E. K.
Right arrow Articles by Meyers, W. C.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

American Journal of Roentgenology, Vol 159, 745-749, Copyright © 1992 by American Roentgen Ray Society

ARTICLES

CT arterial portography: causes of technical failure and variable liver enhancement

EK Paulson, ME Baker, DJ Hilleren, WP Jones, MH Knelson, SN Nadel, RA Leder and WC Meyers
Department of Radiology, Duke University Medical Center, Durham, NC 27710.

OBJECTIVE. We studied the causes of technical failure and enhancement variability encountered during CT arterial portography. MATERIALS AND METHODS. CT arterial portograms and digital arteriograms were obtained via the superior mesenteric artery before partial liver resection in 43 patients with malignant tumors. These studies were reviewed for causes of technical failure and variable enhancement. RESULTS. Eleven (26%) of 43 procedures were technical failures. Causes of failure included aortic injection after catheter dislodgement (four), dense hyperenhancement associated with laminar flow in the portal vein produced by rapid venous return from a selective injection into a proximal branch vessel of the superior mesenteric artery (two), premature scanning beginning at the iliac crest (two), reflux into a replaced right hepatic artery (one), hepatic arterial enhancement via the pancreaticoduodenal arcade (one), and portal hypertension (one). Of the 32 remaining studies, 28 showed areas of parenchymal hypoenhancement or hyperenhancement. Causes of variable enhancement included impaired portal vein perfusion from mass effect of the tumor, laminar flow in the portal vein, and focal fatty infiltration. CONCLUSION. Technical failures and enhancement variability are common in CT arterial portography. Factors leading to technical failure include catheter choice and position, portal hypertension, and operator error.
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
 Am. J. Roentgenol.Home page
B. J. Stemmler, E. K. Paulson, F. J. Thornton, S. R. Winters, R. C. Nelson, and B. M. Clary
Dual-Phase 3D MDCT Angiography for Evaluation of the Liver Before Hepatic Resection
Am. J. Roentgenol., December 1, 2004; 183(6): 1551 - 1557.
[Abstract] [Full Text] [PDF]

Home page
 RadioGraphicsHome page
H. C. Kim, T. K. Kim, K.-B. Sung, H.-K. Yoon, P. N. Kim, H. K. Ha, A. Y. Kim, H. J. Kim, and M.-G. Lee
CT during Hepatic Arteriography and Portography: An Illustrative Review
RadioGraphics, September 1, 2002; 22(5): 1041 - 1051.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Roentgenol.Home page
D. A. Bluemke, E. K. Paulson, M. A. Choti, S. DeSena, and P. A. Clavien
Detection of Hepatic Lesions in Candidates for Surgery: Comparison of Ferumoxides-Enhanced MR Imaging and Dual-Phase Helical CT
Am. J. Roentgenol., December 1, 2000; 175(6): 1653 - 1658.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1992 by the American Roentgen Ray Society.