Abstract #4252

Image quality comparisons of novel and commercial coil setups in MRI for head and neck radiotherapy simulation

Evangelia Kaza¹, Jeffrey P Guenette², Christian V Guthier¹, Steven Hatch³, Alexander Marques³, Lisa Singer¹, and Jonathan D Schoenfeld¹

¹Radiation Oncology, Brigham and Women’s Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States, ²Division of Neuroradiology, Brigham and Women’s Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States, ³Radiation Oncology, Brigham and Women’s Hospital, Dana-Farber Cancer Institute, Boston, MA, United States

Quality characteristics of healthy volunteer head images (SNR, CNR, artifact size) were compared between two flexible coil arrangements encompassing radiotherapy immobilization masks relative to a gold standard diagnostic Head/Neck20 coil that cannot accommodate the masks. The novel arrangement of two UltraFlexLarge18 coils provided higher SNR ratios and was more spacious than the commercially recommended arrangement of two FlexLarge4 coils. Artifact size and CNR ratios were similar for the two coil setups. Clinical application of the UltraFlexLarge18 coil arrangement would be advantageous for head and neck radiotherapy MRI simulations due to higher SNR and increased patient comfort.

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