Abstract #0873

The application of whole lesion IVIM analysis using iZOOM DWI in the diagnosis of thyroid tumor

Yunlong Yue¹, Lili Zuo¹, Kaining Shi², Lee Jiang³, Jinsong Guo¹, and Yanfang Jin¹

¹Department of MR, Beijing Shijitan hospital of capital medical university, Beijing, People's Republic of China, ²Philips Healthcare (China), Beijing, People's Republic of China, ³Philips Healthcare (China), Suzhou, People's Republic of China

To explore the ability of IVIM parameters derived from iZoom DWI in differentiating malignant thyroid nodules from benign ones. 40 patients with 45 pathologically proven thyroid nodules were involved. iZOOM DWI with 2D RF was employed to decrease the distortion and carotid coil was used to increase the SNR. 3D ROI was drawn manually to cover the whole lesion. D and f values were significantly lower in malignant nodules than in benign nodules. According to ROC curve analysis IVIM almost reached the upper limit of the accuracy based on US.

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