Abstract #3209

The diagnostic value of MRI extracellular volume(ECV) to pulmonary occupied lesions

Yongqing Yang^1,2, Peng Zhao², Xiangtao Lin^1,2, Yu Wang^1,2, Mengxiao Liu³, Wenjing Ma², Shuai Duan², Nan Lin², Xiaoli Li^1,2, Dejuan Shan^1,2, and Zhongyu Hou²

¹Radiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China, ²Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China, ³MR Scientific Marketing,Diagnostic Imaging, Siemens Healthcare Ltd., Shanghai, China

In order to diagnose of the pathological type of pulmonary occupied lesions by non-invasive imaging, 30 patients were scanned with chest MRI using Siemens 3T scanner. The T1 mapping sequences were used before and after the injection of contrast agent, and the extracellular volume (ECV) was calculated. The statistical differences of ECV between squamous, adenocarcinoma and small cell carcinoma were analyzed by single-factor variance, and there were significant statistical differences (P<0.05).

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