| Autor: |
Rodriguez Gomez S, Pagés Llinas M, Castells Garangou A, De Juan Garcia C, Bordas Alsina JM, Rimola Gibert J, Ayuso Colella JR, Ayuso Colella C, Rodriguez Gomez, Sonia, Pagés Llinas, Mario, Castells Garangou, Antoni, De Juan Garcia, Carmen, Bordas Alsina, Josep M, Rimola Gibert, Jordi, Ayuso Colella, Juan R, Ayuso Colella, Carmen |
| Zdroj: |
European Radiology; Jul2008, Vol. 18 Issue 7, p1396-1405, 10p |
| Abstrakt: |
The purpose was to evaluate MR colonography (MRC) with barium fecal tagging in detecting colorectal pathology and to determine how air-based and water-based colonic distension influences MRC. We studied 83 patients with high risk of colonic neoplasms. All received oral barium sulfate for colonic preparation before unenhanced and enhanced T1-weighted gradient-echo MRC using either water (n=54) or air (n=29) for colonic distension. Fecal tagging, distension, and artifacts were recorded. All patients underwent conventional colonoscopy within 2 weeks of MRC; the techniques were compared for detection of malignant neoplasms and polyps >or=1 cm, 6-9 mm, and or=1 cm, but more air-distended MRC were excluded for poor quality. MRC with fecal tagging is useful for detecting lesions >or=1 cm. Air distension was inferior to water distension in most aspects. Water-based colonic distension should be used for barium-tagging MRC. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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