Preoperative T Staging of Potentially Resectable Esophageal Cancer: A Comparison between Free-Breathing Radial VIBE and Breath-Hold Cartesian VIBE,with Histopathological Correlation |
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Authors: | Fengguang Zhang Jinrong Qu Hongkai Zhang Hui Liu Jianjun Qin Zhidan Ding Yin Li Jie Ma Zhongxian Zhang Zhaoqi Wang Jianwei Zhang Shouning Zhang Yafeng Dong Robert Grimm Ihab R. Kamel Hailiang Li |
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Affiliation: | 2. NEA MR Collaboration, Siemens Ltd., China, Shanghai, China, 201318;3. Department of Thoracic surgery, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China,450008;4. Department of Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China, 450008;5. MR-Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany, 91052 |
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Abstract: | Purpose: To compare the T staging of potentially resectable esophageal cancer using free-breathing radial VIBE (r-VIBE) and breath-hold Cartesian VIBE (C-VIBE), with pathologic confirmation of the T stage. Materials and Methods: Fifty patients with endoscopically proven esophageal cancer and indeterminate T1/T2/T3 stage by CT scan were examined on a 3-T scanner. The MRI protocol included C-VIBE at 150 seconds post–IV contrast, immediately followed by a work-in-progress r-VIBE with identical spatial resolution (1.1 mm × 1.1 mm × 3.0 mm). Two independent readers assigned a T stage on MRI according to the 7th edition of UICC-AJCC TNM Classification, and postoperative pathologic confirmation was considered the gold standard. Interreader agreement was also calculated. Results: The T staging agreement between both VIBE techniques and postoperative pathologic T staging was 52% (26/50) for C-VIBE, 80% (40/50) for r-VIBE for reader 1, and 50% (25/50), 82% (41/50) for reader 2, respectively. For the esophageal cancer with invading lamina propria, muscularis mucosae, or submucosa (T1 stage), r-VIBE achieved 86% (12/14) agreement for both readers 1 and 2. For invasion of muscularis propria (T2 stage), r-VIBE achieved 83% (25/30) for both readers 1 and 2, whereas for the invasion of adventitia (T3 stage), r-VIBE could only achieve agreement in 50% (3/6) and 67% (4/6) for readers 1 and 2, respectively. Conclusion: Contrast-enhanced free-breathing r-VIBE is superior to breath-hold CVIBE in T staging of potentially resectable esophageal cancer, especially for T1 and T2. |
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Keywords: | Address all correspondence to: Hailiang Li or Jinrong Qu Department of Radiology the Affiliated Cancer Hospital of Zhengzhou University Henan Cancer Hospital Zhengzhou China 450008. |
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