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Radiotherapy

Radiotherapy

A single MRI scan can manage respiratory motion

19 Jul 2022 Tami Freeman

In a Best-in-Physics presentation at the AAPM Annual Meeting, Sihao Chen described how a single MRI scan can be used for motion management during MR-guided radiotherapy

Reconstructed MR images
In-human study: CAPTURE-detected in vivo respiratory curve (a). Data from the first 200 spokes (marked in red) were used for short-scan MRI reconstructions: using MCNUFFT without motion correction (b) and using MOTIF with P2P (c). The reconstruction using MOTIF with MCNUFFT from regular-scan MRI (2000 spokes) serves as the gold-standard (d). (Courtesy: Sihao Chen)
Respiratory motion can impact the efficacy and safety of radiation therapy in the thorax and abdomen

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Tami Freeman is an online editor for Physics World
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