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Abstract #0308

Low-Field (0.55T) Phase-resolved Functional Lung (PREFUL) MRI for Evaluating Ventilation and Perfusion in Pulmonary Diseases

Dante Capaldi1, Dominique Baria2, Prachi Deo2, Yoo Jin Lee2, Pan Su3, Xin Miao3, Robert Grimm4, Andreas Voskrebenzev5,6, Jens Vogel-Claussen5,6, Jessica Scholey1, Lisa Singer1, Yang Yang2, Peder Larson2, and Jae Ho Sohn2
1Department of Radiation Oncology, UCSF, San Francisco, CA, United States, 2Radiology and Biomedical Imaging, UCSF, San Francisco, CA, United States, 3Siemens Healthineers, Malvern, PA, United States, 4Siemens Healthineers, Erlangen, Germany, 5Institute of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany, 6German Centre for Lung Research, Hannover, Germany

Synopsis

Keywords: Lung, Lung, Low-field, PREFUL

Motivation: Functional lung imaging using non-contrast-enhanced, free-breathing MRI has gained popularity, especially with the rise of low-field MRI (0.55T) for improved lung parenchyma assessment.

Goal(s): To evaluate the use of low-field PREFUL MRI for generating ventilation and perfusion maps in patients with lung disease.

Approach: Multi-slice, free-breathing MRI was conducted in both patients and healthy volunteers, with PREFUL software used for lung segmentation and defect quantification.

Results: Patients with lung disease exhibited visible and significantly higher ventilation and perfusion defects than healthy controls, supporting low-field PREFUL's potential for non-invasive lung function assessment.

Impact: Low-field PREFUL MRI enables non-invasive, high-quality lung imaging, detecting pronounced ventilation and perfusion defects in patients with lung disease. This advancement underscores low-field MRI’s unique potential for accessible, non-contrast enhanced, high-quality pulmonary function assessment across diverse conditions.

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Keywords