Abstract #1330

Evaluation of reverse encoding distortion correction DWI in patients with non-functioning pituitary macroadenoma

Shuichi Ito¹, Sachi Okuchi¹, Yasutaka Fushimi¹, Kanae Kawai Miyake², Koji Fujimoto³, Hitomi Numamoto², Satoshi Nakajima¹, Akihiko Sakata¹, Takuya Hinoda¹, Sayo Otani¹, Azusa Sakurama¹, Krishna Pandu Wicaksono¹, Hiroshi Tagawa¹, Yang Wang¹, Satoshi Ikeda¹, Miyuki Takiya¹, Hiroki Kondo⁴, Rimika Imai⁴, Tsuneo Saga², and Yuji Nakamoto¹

¹Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ²Department of Advanced Medical Imaging Research, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ³Department of Real World Data Research and Development, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ⁴Canon Medical Systems Corporation, Otawara, Japan

Synopsis

Keywords: Head & Neck/ENT, Diffusion/other diffusion imaging techniquesReverse encoding distortion correction diffusion-weighted imaging (RDC-DWI) is a novel on-console technique to reduce eddy current-induced distortion of motion probing gradient (MPG) images in addition to B0 field inhomogeneity. We compared RDC-DWI, B0-corrected-DWI, and original DWI in patients with unoperated non-functioning macroadenoma or residual pituitary macroadenoma after surgery. RDC-DWI had the best image quality regarding distortion, artifacts and overall tumor visualization, which suggested that RDC-DWI facilitates accurate visualization in the pituitary region on DWI.

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