Experimental comparison of linear regression and LSTM motion prediction models for MLC-tracking on an MRI-linac.

Elia Lombardo,Paul Z Y Liu,David E J Waddington,James Grover,Brendan Whelan, Esther Wong,Michael Reiner,Stefanie Corradini,Claus Belka,Marco Riboldi,Christopher Kurz,Guillaume Landry,Paul J Keall

Medical physics（2023）

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摘要

This study represents the first experimental comparison of different prediction models for MRI-guided MLC-tracking using several patient-derived respiratory motion traces. We have shown that among the investigated models, continuously re-optimized LSTM networks are the most promising to account for the end-to-end system latency in MRI-guided radiotherapy with MLC-tracking.

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关键词

linear regression, long short-term memory, MLC-tracking, motion prediction, MRI-linac, respiratory motion

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