A comparative study of non-PTX‑zoom‑DWI with conventional DWI in bladder cancer lesion display and muscular invasion diagnosis
Zhenming Zhang1, Naiming Xue2, Yueluan Jiang3, Lulu Guo2, Mengchao Zhang2, Bo Gao4, Shishun Zhao5, Lin Liu2, and Thomas Benkert6
1China-Japan Union Hospital of Jilin University, Changchun, China, 2Radiology, China-Japan Union Hospital of Jilin University, Changchun, China, 3MR Scientific Marketing, Siemens Healthineers, Beijing, China, 4Jilin Metering Center, State Grid Corporation of China, Changchun, China, 5College of Mathematics of Jilin University, Changchun, China, 6MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany
The value of non-parallel-transmission zoom-diffusion weighted imaging (non-PTX zoom-DWI) compared with conventional DWI in the diagnosis of bladder cancer muscular invasion is investigated. Results show that non-PTX zoom-DWI improves sensitivity, specificity, positive predictive value, negative predictive value, and accuracy. Additionally, it has good diagnostic consistency across different readers, and shows better display of bladder than conventional DWI sequence. Non-PTX zoom-DWI may be superior to conventional DWI in predicting the muscular invasion in bladder cancer.
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