Abstract #3236

Ultra-fast SWI using 3D-EPI and CAIPIRINHA: a feasibility study at 3-tesla

Sreekanth Madhusoodhanan Nair¹, Nader Binesh², Jin Jin³, Fei Han⁴, Elaina Gombos¹, Brian Renner¹, Mustafa Subhi¹, Omar Al-Louzi¹, Marwa Kaisey¹, Nancy L Sicotte¹, Debiao Li⁵, Marcel Maya², and Pascal Sati^1,5

¹Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ²Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ³Siemens Healthcare Pty Ltd, Brisbane, Australia, ⁴Siemens Medical Solutions, Los Angeles, CA, United States, ⁵Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States

Synopsis

Keywords: Data Acquisition, Data Acquisition

Motivation: Conventional gradient echo SWI has a slow acquisition speed, thus limiting the minimal scan time achievable. However, accelerated 3D-EPI sequence can perform fast MR acquisition.

Goal(s): In this study, we evaluated the feasibility of SWI-EPI to generate ultra-fast susceptibility weighted images.

Approach: SWI-EPI combines a 3D (muti-shot) EPI sequence with CAIPIRINHA acceleration to significantly reduce the scan time.

Results: A significant reduction in scan time (up to 70%) was achieved with similar image quality and without any apparent artefacts, thus confirming the feasibility of ultra-fast SWI for future clinical neuro-applications at 3T.

Impact: This study demonstrates the feasibility of ultra-fast SWI-EPI at 3T.

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