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Abstract #5380

Comparison of susceptibility artifacts of single shot EPI DWI, ZOOMit-DWI,RESOLVE and SPLICE in prostate MRI

Kazunori Ohashi1, Ryoma Miura1, Ayumu Funaki1, Kaoru Watanabe2, Yoshio KItazume2, and Kazunori Kubota2
1Department of Radiologic Technology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan, 2Department of Radiology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan

Synopsis

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Motivation: DWI is important in PI-RADS when using mp-MRI. However, susceptibility artifacts caused by colonic gas frequently impact the quality of DWI and negatively impacting accurate PI-RADS assessment.

Goal(s): This study aims to enhance the diagnostic performance of PI-RADS using various DWI sequences.

Approach: Using various phantoms, we used parameters that provide suitable SNR and low magnetic susceptibility artifacts to obtain clinical images, confirmed through phantom studies.

Results: SPLICE exhibited reduced distortion. SNR was highest for Single-shot EPI at 3.0T MRI, while SPLICE demonstrated the lowest SNR. RESOLVE3.0T has reduced susceptibility artefacts and has resulted in a high SNR.

Impact: We studied the characteristics of different DWI sequences and obtained clinical images with low susceptibility artifacts by setting parameters appropriate to the sequence.

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