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Abstract #4607

Tissue-Independent SNR Measurement for Supine Breast Coil Assessment

Jeremiah J Hess1, Catherine J Moran1, Jana Vincent2, Fraser Robb2, Patricia Lan2, Arnaud Guidon2, Jessica McKay-Nault1, Bruce L Daniel1, and Brian A Hargreaves1
1Stanford University, Stanford, CA, United States, 2GE Healthcare, Chicago, IL, United States

Synopsis

Keywords: Breast, Breast

Motivation: Breast MRI typically is performed with a patient in the prone position. Imaging supine would dramatically improve patient comfort and possibly reduce setup and positioning times.

Goal(s): Compare image quality in breast MRI between the supine and prone positions with specialized coils using signal-to-noise ratio.

Approach: To account for tissue deformation between supine and prone positions, we compare “tissue-independent” relative SNR, which uses the body coil SNR as a reference, in the breast tissue between prone and supine.

Results: In multiple patients, the supine position consistently showed an improvement in SNR over the prone position.

Impact: Improvements in motion correction approaches and development of flexible coils may enable supine breast imaging, which is much more comfortable for the patient than prone imaging. Using a careful comparison, we demonstrate substantially higher SNR in supine imaging.

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Keywords