Abstract #4742

Effects of Contrast Agents on Diffusion-Weighted Imaging and T2-Weighted Imaging for diagnosis of Breast tumor

Changxiang Wang¹, Yongsheng Ao², Lihua Qiu², Lan Mu³, Junhui Huang¹, Shuheng Zhang⁴, Shimin Yang⁴, Xin Liu¹, Hairong Zheng¹, and Na Zhang¹

¹Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, ²Department of Radiology, The Second People’s Hospital of Yibin, Yibin, China, ³Department of Radiology,Pidu District People's Hospital, Chengdu, China, ⁴United Imaging Healthcare, Shanghai, China

Synopsis

Diffusion-Weighted Imaging (DWI) and T2-weighted imaging (T2WI) are two necessary sequences in breast MRI which of great significance for breast cancer. They are usually performed before contrast agent injection in the conventional breast MRI protocol. Recently, some studies have proposed simplified and fast breast scanning protocol, of which, DWI and T2WI are performed after contrast agent injection. This study evaluated the clinical value of DWI and T2WI after contrast agent in the diagnosis of breast cancer. The results showed that contrast injection has no effect on DWI, but it can improve the signal-to-noise ratio and contrast-to-noise ratio of T2WI.

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