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British Journal of Radiology (2004) 77, 917-921
© 2004 British Institute of Radiology
doi: 10.1259/bjr/18038687
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Focal bowel wall changes detected with colour Doppler ultrasound: diagnostic value in acute non-diverticular diseases of the colon

E M Danse, MD , PhD 1 J Jamart, MD, MSc 2 P Hoang, MD, PhD 3 P F Laterre, MD 4 A Kartheuser, MD, PhD 5 and B E Van Beers, MD, PhD 1

1 Department of Radiology, Université Catholique de Louvain, St-Luc University Hospital, Avenue Hippocrate 10, B-1200 Brussels, 2 Center for Biostatistics and Medical Documentation, Mont-Godinne University Hospital, Avenue Therasse 1, B-5530 Yvoir, 3 Department of Internal Medicine, St-Luc University Hospital, Avenue Hippocrate 10, B-1200 Brussels, 4 Department of Intensive Care and Emergency Medicine, St-Luc University Hospital, Avenue Hippocrate 10, B-1200 Brussels and 5 Department of Surgery, St-Luc University Hospital, Avenue Hippocrate 10, B-1200 Brussels, Belgium



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  		Figure 1. 68-year-old man with infectious colitis. Transverse ultrasound shows colonic wall thickening with preserved stratification. Interface between lumen and mucosa appears hyperechoic; mucosa is hypoechoic (arrowhead); submucosa, hyperechoic (asterisk) and muscularis propria, hypoechoic (arrow).

 


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  		Figure 2. Box plots of group parameters in which boundary of boxes closest to zero indicates 25th percentile, line within boxes marks median, and boundary of boxes farthest from zero indicates 75th percentile. Errors bars below and above boxes indicate 10th and 90th percentiles. Outliers are represented as individuals points. Graphs showing box plots of (a) wall thickness, and (b) resistive index. Malignancy is significantly related to increased wall thickness (p<0.001), and inflammation is related to lower values of resistive index compared with other groups (p≤0.05).

 


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  		Figure 3. Receiver operating characteristic curve of wall thickness in diagnosis of malignancy has area under curve of 0.959±0.024.

 


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  		Figure 4. Composite receiver operating characteristic curves of wall thickness (C1), resistive index (C2), and both parameters (C3) for diagnosing inflammation show larger area under curve when both parameters are considered together.

 


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  		Figure 5. 69-year-old woman with colonic carcinoma. Transverse ultrasound shows hypoechoic and irregular thickening of colonic wall, without stratification.

 


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  		Figure 6. 21-year-old woman with Crohn's colitis. Transverse Doppler ultrasound of the caecum (arrows) demonstrates increased mural flow and low value of mural resistive index.

 


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  		Figure 7. 75-year-old woman with ischaemic colitis. Doppler ultrasound shows hypoechoic thickening of the colon with absence of mural flow (arrows).

 




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