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Abstract #3664

Rapid Isotropic Shoulder MRI using 3D SPACE with Incoherent Undersampling and Iterative Reconstruction

Esther Raithel 1 , Gaurav Thawait 2 , Shadpour Demehri 2 , Shivani Ahlawat 2 , Heiko Meyer 1 , Wesley Gilson 3 , and Jan Fritz 2

1 Healthcare Sector, Siemens AG, Erlangen, Bavaria, Germany, 2 Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, United States, 3 Siemens Healthcare USA, Baltimore, MD, United States

High-spatial-resolution isotropic 3D MRI can eliminate partial volume effects and enable multi-planar and curved reconstructions, as well as interactive 3D interpretation. In the shoulder, however, 3D MRI requires time-consuming oversampling steps in phase and slice encoding directions, which can result in clinically impractical acquisition times. K-space undersampling and iterative reconstruction is a method that can yield substantial acceleration of 3D data acquisition. We show the implementation of this method into a comprehensive, 11 min clinical 3D SPACE protocol that can produce similar image qualities as a 21 min standard 2D TSE protocol.

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