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Abstract #4827

Combined SENSE and Compressed Sensing to Enhance Radiation Therapy MR Simulation

Kristen Zakian1, Neelam Tyagi1, Victoria Yu1, Alex Dresner2, Paul Romesser3, and Ricardo Otazo1
1Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, United States, 2Philips Healthcare, Best, Netherlands, 3Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, United States

We evaluated a combination of SENSE acceleration and compressed sensing in the MR simulation workflow to reduce scan time and improve image quality and anatomical coverage. Imaging series were performed with SENSE-only and with a combined SENSE+compressed sensing (CS) software package. CS resulted in an average reduction of 28% in single-series scan time with negligible changes in image quality and the ability to contour structures for RT treatment planning. In addition, CS permitted pulse sequence modifications which reduced respiratory artifacts, improved visibility of the prostatic urethra, and eliminated the need for a Foley catheter in prostate cancer patients.

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