Dosimetric Consequences of Rotational Patient Setup Errors in Stereotactic Radiosurgery

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atmire.migration.oldid4830
dc.contributor.advisorPloquin, Nicolas
dc.contributor.authorBriscoe, Michael
dc.contributor.committeememberVoroney, Jon-Paul
dc.contributor.committeememberSchinkel, Colleen
dc.contributor.committeememberSpencer, David
dc.contributor.committeememberLim, Gerald
dc.date.accessioned2016-09-01T15:27:10Z
dc.date.available2016-09-01T15:27:10Z
dc.date.issued2016
dc.date.submitted2016en
dc.description.abstractThe level of rotational patient setup error needed to impact stereotactic radiosurgery (SRS) treatments is not well defined. The purpose of this study was to explore potential rotational setup error thresholds for SRS treatments of brain metastases. The groups analyzed in this study consisted of either single isocentric targets or multiple nonisocentric targets. Rotations between 0.5° and 7° were simulated, and the percent of the target volume that received the prescription dose (Vp) was compared between the original plans and rotation simulations to determine what degree of rotations would cause notable Vp loss. The results suggest that a rotational patient setup error threshold of 2° around all axes for treatments of single isocentric targets is conservative. For treatments of multiple nonisocentric targets, especially those that are far from the treatment isocenter, the rotational setup error threshold may need to be as low as or lower than 0.5°.en_US
dc.identifier.citationBriscoe, M. (2016). Dosimetric Consequences of Rotational Patient Setup Errors in Stereotactic Radiosurgery (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25738en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/25738
dc.identifier.urihttp://hdl.handle.net/11023/3249
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectOncology
dc.subjectRadiology
dc.subjectPhysics--Radiation
dc.subject.classificationStereotactic Radiosurgeryen_US
dc.subject.classificationBrain Metastasesen_US
dc.subject.classificationRotational Setup Erroren_US
dc.subject.classificationDosimetric Consequencesen_US
dc.subject.classificationRotation Thresholden_US
dc.titleDosimetric Consequences of Rotational Patient Setup Errors in Stereotactic Radiosurgery
dc.typemaster thesis
thesis.degree.disciplinePhysics and Astronomy
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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