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Abstract #0978

Quantitative Evaluation of Emphysema in COPD Patients via CT and UTE MR Image Analysis

David J. Roach 1,2 , Yannick Crmillieux 3 , Suraj Serai 4 , Robert Thomen 1,5 , Sadia Benzaquen 6 , and Jason C. Woods 1,2

1 Center for Pulmonary Imaging Research, Cincinnati Childrens Hospital Medical Center, Cincinnati, Ohio, United States, 2 Pulmonary Medicine, Cincinnati Childrens Hospital Medical Center, Cincinnati, Ohio, United States, 3 Centre de Rsonance Magntique des Systmes Biologiques, Universit de Bordeaux, Bordeaux, France, 4 Radiology, Cincinnati Childrens Hospital Medical Center, Cincinnati, Ohio, United States, 5 Physics, Washington University in St. Louis, St. Louis, Missouri, United States, 6 University of Cincinnati College of Medicine, Cincinnati, Ohio, United States

We investigated whether lung ultrashort echo-time (UTE) MRI could generate quantitative imaging biomarkers for patients diagnosed with chronic obstructive pulmonary disease (COPD). COPD patients and control subjects were imaged via UTE MRI; these images were compared to chest CTs, both qualitatively and quantitatively. UTE MRI signal intensity was lower in the COPD group (p<0.001) and emphysema index (EI) was higher (p<0.006). EI of MRI correlated well with EI calculated via CT (R2=0.82). This study demonstrates that UTE MRI can be employed to quantify tissue destruction in emphysema patients, and can potentially assess COPD extent and severity.

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