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ISRN Gastroenterology
Volume 2012 (2012), Article ID 370495, 4 pages
http://dx.doi.org/10.5402/2012/370495
Clinical Study

Ultrasonographic Evaluation of Bowel Wall Thickness and Intramural Blood Flow in Ulcerative Colitis

1Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran
2Liver and Gastroenterology Diseases Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran
3Department of Radiology, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran
4Medical Philosophy and History Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran
5Students Research Committee, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran

Received 26 January 2012; Accepted 21 February 2012

Academic Editors: A. Nakajima, A. A. te Velde, and A. Weimann

Copyright © 2012 Abolhassan Shakeri Bavil et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aim. This study aimed at assessing Doppler ultrasonographic findings of gut wall vessels and thickness in active and quiescent ulcerative colitis. Methods. Fifty patients with ulcerative colitis were studied using transabdominal grayscale and Doppler sonography of sigmoid, distal and middle parts of descending colon in different stages of the disease. Thickness of colon wall in the most involved site, number of color signals in each box, resistive index (RI), and pulsatility index (PI) were evaluated. Results. The median thickness of the colon wall in the most involved sites was 4.3 mm in acute phase and 4.4 mm in the inactive phase ( 𝑃 = 0 . 4 7 ). The median number of the color signals in the active phase at the most involved site, distal part of descending colon and sigmoid was higher than that of the color signals in the inactive phase ( 𝑃 = 0 . 0 0 0 1 ). In the most involved site, the PI and RI were undetectable in the inactive phase. The median PI was 1.4 in the mild phase, 1.3 in the moderate phase, and 1.1 in the severe phase ( 𝑃 = 0 . 0 0 2 ). Conclusion. In contrast to the colon wall thickness, increased intramural blood flow reflected the clinical severity in ulcerative colitis patients.