Abstract #4752

Unified Shimming and RF coil (UNIC) Reduces Susceptibility Artifacts in Prostate DWI in Subjects with Metallic Hip Prosthesis at 3T

Ziyang Long^1,2,3, Archana Malagi¹, Fardad Michael Serry¹, Liting Huang¹, Mohammed Albatany¹, Jeremy Zepeda¹, Lingceng Ma¹, Chia-Chi Yang¹, Lixia Wang¹, Nader Binesh⁴, Yujie Shan¹, Debiao Li^1,3, Hsin-Jung Yang¹, and Hui Han^1,2

¹Biomedical Imaging Research Institude, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ²Department of Radiology, Weill Cornell Medicine, New York, NY, United States, ³Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States, ⁴Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA, United States

Synopsis

Keywords: Prostate, Shims, Metallic Artifacts, Hip Prosthesis

Motivation: Metallic implants in the body may cause severe image artifacts.

Goal(s): To improve prostate DWI imaging in patients with metallic hip replacement using a novel B₀ local shimming system.

Approach: Unified Shimming and RF coil (UNIC) arrays were used to improve local B₀ shimming. Improved DWI image quality was assessed at 3T MRI on subjects with hip prostheses.

Results: UNIC arrays significantly improved B₀ homogeneity and reduced DWI distortions in prostate, resulting in improved Dice and Jaccard coefficients.

Impact: UNIC coil arrays can enable 3T prostate DWI MRI for patients with metallic hip implants and provide the necessary care for the fast-growing population.

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