کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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6244170 | 1609784 | 2012 | 8 صفحه PDF | دانلود رایگان |

PurposeThe purpose of this study was to evaluate the accuracy of T-staging of gastric cancer by air-filling multidetector-row CT (air-MDCT) compared with water-filling MDCT (hydro-MDCT).Materials and methodsOne hundred fifteen patients with histologically diagnosed gastric cancer were included in this study. Fifty-eight patients underwent air-MDCT, and the remaining 57 had hydro-MDCT using a 64-channel scanner. Based on the volumetric data of contrast-enhanced MDCT obtained about 75Â s after intravenously injecting 525Â mg iodine per kilogram patients weight (525Â mgI/kg) nonionic contrast material at the rate of 2Â ml/s, oblique coronal and oblique sagittal multi-planar reformatted images perpendicular to the stomach wall, including the tumor, were reconstructed on a workstation. Mural invasion of gastric cancer into the gastric wall, as visualized by CT, was classified according to the TNM classification, and the results of T-staging by MDCT were compared with those by pathologic analysis after surgery.ResultsCorrect assessment of T-staging by air-CT was achieved in 48 of 58 patients (83%), and that by hydro-MDCT was 49 of 57 patients (86%). The sensitivity, specificity, and accuracy of the technique in determining the invasion of serosa were 88%, 93%, and 91% for air-CT and 83%, 95%, and 91% for hydro-CT. There were no significant differences between hydro-MDCT and air-MDCT in sensitivity (PÂ =Â 0.73), specificity (PÂ =Â 0.71) and accuracy (PÂ =Â 0.98).ConclusionAir-MDCT is a very valuable tool in T-staging of gastric cancer as well as hydro-MDCT.
Journal: European Journal of Radiology - Volume 81, Issue 11, November 2012, Pages 2953-2960