Abstract #0662

Lung nodule imaging using high-performance 0.55T MRI

Björn Wieslander¹, Ahsan Javed², Rajiv Ramasawmy², Ashkan A Malayeri³, Scott Baute², Kendall J O'Brien², Christine Mancini², Amanda Potersnak², Cheryl Warga⁴, Joel Moss¹, Marcus Y Chen², and Adrienne E Campbell-Washburn²

¹Pulmonary Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, United States, ²Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States, ³Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, United States, ⁴National Cancer Institute, National Institutes of Health, Bethesda, MD, United States

Synopsis

Lung imaging plays an important role in routine screening for lung nodules and lung cancer. Magnetic resonance imaging (MRI) has recently emerged as an alternative to computed tomography (CT) to image lung nodules. Lower field MRI offers high image quality, due to improved field homogeneity, and lower cost. We imaged 11 patients who had a total of 29 nodules visible on clinically motivated CT scans. T2-weighted images showed good agreement with CT in terms of nodule size and diameters and malignant nodules were more often visible on diffusion weighted images (b = 800).

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