Magnetic resonance imaging (MRI) has become a primary diagnostic tool in scientific research and clinical imaging. Despite the excellent image quality that can be obtained with todayâs MRIs, images acquired using different MRI systems and during longitudinal studies are not reproducible, and hence can be difficult, if not impossible, to compare. To address this issue, a standardized test of the performance characteristics of each installed MRI system, detection coils, and operational protocols is necessary. High Precision Devices, Inc. (HPD) will continue the development and commercialization of a cost effective, shelf-stable NIST-designed MRI breast phantoms for calibration of MRI systems used in breast cancer research studies and clinical settings