Image registration of a moving target phantom with helical tomotherapy: effect of the CT acquisition technique and action level proposal

Physics in Medicine and Biology
C WoodfordJ Van Dyk

Abstract

This study aims to quantify the effects of target motion and resultant motion artifacts in planning and megavoltage CT (MVCT) studies on the automatic registration processes of helical tomotherapy. Clinical and experimental data were used to derive an action level for patient repositioning on helical tomotherapy. Planning CT studies of a respiratory motion phantom were acquired using conventional and four-dimensional CT (4D CT) techniques. MVCT studies were acquired on helical tomotherapy in the presence and absence of target motion and were registered with different planning CT studies. The residual errors of the registration process were calculated from the registration values to quantify the ability of the process to detect 5 or 10 mm translations of the phantom in two directions. Twenty-seven registration combinations of MVCT inter-slice spacing, technique and resolution were investigated. The residual errors were used as an estimate of the localization error of the registration process, and the accuracy of couch repositioning was determined from couch position measurements during 866 treatment fractions. These two parameters were used to calculate the action level for patient repositioning on helical tomotherapy. Automatic...Continue Reading

References

Apr 16, 2003·International Journal of Radiation Oncology, Biology, Physics·Thomas Rockwell MackieMinesh Mehta
Jan 31, 2004·Seminars in Radiation Oncology·George T Y ChenKevin P Beaudette
Jan 31, 2004·Seminars in Radiation Oncology·Paul Keall
Jul 21, 2005·International Journal of Radiation Oncology, Biology, Physics·Katja M LangenPatrick A Kupelian
Aug 30, 2005·International Journal of Radiation Oncology, Biology, Physics·Stephen L MahanThomas E Byrne
Jun 7, 2006·Medical Physics·Harry KellerElizabeth White
Jun 23, 2006·Physics in Medicine and Biology·T R Mackie
Nov 23, 2006·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Jeffrey D BradleyDivya Khullar
Jan 2, 2007·International Journal of Radiation Oncology, Biology, Physics·Omar A ZeidanPatrick A Kupelian
Feb 1, 2007·Physics in Medicine and Biology·Christopher SmeenkJerry J Battista
Apr 4, 2007·Physics in Medicine and Biology·Curtis WoodfordJake Van Dyk
Jul 20, 2007·Physics in Medicine and Biology·Curtis WoodfordJake Van Dyk
Aug 21, 2007·International Journal of Radiation Oncology, Biology, Physics·Matthias GuckenbergerMichael Flentje
Sep 18, 2007·International Journal of Radiation Oncology, Biology, Physics·Peter G MaximQuynh-Thu Le
Oct 2, 2007·Seminars in Radiation Oncology·Marcel van Herk
Oct 2, 2007·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Per Rugaard PoulsenMorten Høyer
Nov 22, 2007·International Journal of Radiation Oncology, Biology, Physics·Geoffrey D HugoDi Yan
Nov 27, 2007·International Journal of Radiation Oncology, Biology, Physics·Jeffrey R OlsenParag J Parikh
Jan 1, 2007·Biomedical Imaging and Intervention Journal·S YartsevJ Van Dyk

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Citations

Sep 21, 2015·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Samuel GoossensXavier Geets
Jul 6, 2010·Journal of Medical Imaging and Radiation Oncology·J MedwigS Yartsev
Feb 11, 2019·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·P De MarcoF Cattani
Jul 18, 2021·Journal of Applied Clinical Medical Physics·Geoffrey BaranJay W Burmeister

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