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- W2061569609 abstract "Background: Endoscopic ultrasonography (EUS) is considered to be a useful method for staging gastrointestinal cancer not only in relation to the presence of lymph node metastasis but also determining the depth of invasion. Aim: To evaluate the accuracy of depth of invasion using EUS when the correct diagnosis was difficult to establish with gastroscopy (GS) in order to determine the best treatment modality. Material and Methods: Between January 2000 and October 2003, radial scanning EUS (GF-UMQ200 or GF-UM2000, Olympus Optical Co.) was performed as a further examination in 81 lesions of 78 patients with gastric cancer. In some cases, 3D-ultrasonic probe (UM-3D-3R, Olympus Optical Co.) was used additionally. We divided the depth of invasion into: mucosal or submucosal slight (<500micro meter), submucosal massive and beyond muscularis propria. The accuracy of depth of invasion as well as clinical factors such as size of the lesion, macroscopic type, presence of ulcer, location and histological type were assessed. Results: The overall accuracy of GS and EUS were 59.3% (48/81) and 61.7% (50/81) respectively. The accuracy of EUS was slightly superior to GS in lesions presenting as undifferentiated type or size >30mm or located in the gastric antrum. In 12/81 lesions the GS diagnosis was correct and the EUS diagnosis was incorrect. In ten of these lesions, the macroscopic type was elevated or flat elevated. EUS was over-diagnosed in 15/81 cases. There were no clinical features in these lesions. Conclusions: When GS could not determine the depth of invasion, EUS could not increased the accuracy particularly in elevated and flat elevated lesion. However, in some cases EUS could be superior to GS evaluating the depth of invasion." @default.
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- W2061569609 date "2004-04-01" @default.
- W2061569609 modified "2023-09-24" @default.
- W2061569609 title "The Accuracy of Endoscopic Ultrasonography as Further Examination Evaluating the Depth of Invasion of Gastric Cancer" @default.
- W2061569609 doi "https://doi.org/10.1016/s0016-5107(04)01070-3" @default.
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