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Superficial esophageal carcinoma: An in vitro study of high‐resolution MR imaging at 1.5T
Author(s) -
Yamada Ichiro,
Izumi Yosuke,
Kawano Tatsuyuki,
Yoshino Norio,
Tetsumura Akemi,
Ohashi Kenichi,
Shibuya Hitoshi
Publication year - 2001
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/1522-2586(200102)13:2<225::aid-jmri1033>3.0.co;2-z
Subject(s) - medicine , carcinoma , radiology , magnetic resonance imaging , stage (stratigraphy) , esophageal cancer , nuclear medicine , pathology , cancer , paleontology , biology
The purpose of this study was to determine the diagnostic accuracy of high‐resolution MR imaging at 1.5T for evaluating the mural invasion of superficial esophageal carcinoma. Forty‐one esophageal specimens taken from patients suspected of having superficial carcinoma were studied using a 1.5T MR system with a surface coil. Spin‐echo MR images were obtained with a field of view of 50mm, matrix of 256 × 256, and section thickness of 2mm (voxel size = 0.08mm 3 ). MR findings were compared with histopathologic findings. T2‐weighted images clearly depicted the normal esophageal wall as consisting of 8 layers. In 39 (95%) of 41 carcinomas, the depth of mural invasion determined by MR imaging correlated well with that determined with histopathologic examination. The MR‐based stage was higher in 2 (5%) cases than the histopathologic stage. High‐resolution MR imaging at 1.5T shows a high diagnostic accuracy for evaluating the mural invasion of superficial esophageal carcinoma, thus potentially enabling preoperative histopathologic staging. J. Magn. Reson. Imaging 2001;13:225–231. © 2001 Wiley‐Liss, Inc.