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Abstract #3080

MR performance of an MR-Linac prototype

Panu Vesanen 1 , Jukka Tanttu 1 , Juha Oila 1 , Tiina Nsi 1 , Annemaria Halkola 1 , Tero Virta 1 , Falk Uhlemann 2 , Johan Overweg 2 , and Jarmo Ruohonen 1

1 MR Therapy, Philips Healthcare, Vantaa, Finland, 2 Philips Innovative Technologies, Hamburg, Germany

In treatment of cancer by conventional radiotherapy, motion of the target and nearby organs limits the accuracy of the treatment delivery. A combined MRI and linear accelerator system (MR-Linac) aims to reduce these inaccuracies by providing image guidance with excellent soft-tissue contrast. In this abstract, MR performance of an industry-built 1.5T MR-Linac prototype was evaluated by comparing the image quality to that obtained with a commercially available 1.5T scanner. Pelvis, abdomen, and head & neck anatomies of 20 healthy volunteers were studied. No significant differences in the image quality or SNR were found.

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