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Abstract #3737

Added Value of Isotropic High-Resolution 3D T2-weighted Imaging in Differentiation of Tis–T1 from T2 Stage in Rectal Cancers

Yu Guo1, Yu Fu1, Jiansen Li2, Lei Zhang1, Zhuo Wang1, and Huimao Zhang1
1The First Hospital of Jilin University, Changchun, China, 2United Imaging Healthcare, Shanghai, China


2D T2WI obtained in multi plane is recommend in preoperative assessment of rectal cancer, but 2D acquisition suffers from heavy partial volume effects. As a result, 2D T2WI cannot assess early rectal cancer stages accurately. Comparing with 2D T2WI, 3D T2WI could provide higher spatial resolution, especially the thin slice thickness, with highly reduced partial volume effects in rectal MRI. The purpose of the study was to compare the local-regional staging accuracy of the conventional 2D T2WI protocol and the 3D T2WI protocol for preoperative MR imaging in early rectal cancer patients.

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