Active Breathing Guidance for T2-weighted liver MRI sequences: a novel in-bore solution for image quality and efficiency improvement

Breathing artifacts in liver MRI lead to impaired image quality, decreased diagnostic confidence, and, as a consequence, longer acquisition times or repetitive examinations. To improve the image quality and scan efficiency we integrated a newly developed in-bore breathing guidance application for T2 weighted sequences with propeller acquisition (MultiVaneXD) (T2BG) and compared it to a conventional free-breathing acquisition method (T2conv). Our study results suggest that an active breathing guidance for T2w liver MRI sequences significantly reduces breathing artifacts and total scan times by 21% while maintaining high image quality.