3D dynamic body surface sensing and CT-body matching: a tool for patient set-up and monitoring in radiotherapy.

2.50
Hdl Handle:
http://hdl.handle.net/10541/86528
Title:
3D dynamic body surface sensing and CT-body matching: a tool for patient set-up and monitoring in radiotherapy.
Authors:
Moore, Christopher J; Graham, Paul A
Abstract:
Recent advances in radical broad-beam conformal radiotherapy for disease at non-rigid sites suggest that the treatment room set-up of patients should be performed using the CT-plan digital body surface as a reference standard. In effect, the CT-plan surface is a "virtual shell" and should be used as such. To do this requires 3D body surface information to be captured live in the treatment room and then manipulated for comparison with the CT virtual shell. To address this situation, a near real-time prototype opto-electronic dynamic 3D surface sensor has been developed and equipped with a novel software utility for visualizing and matching the disparate surfaces arising from planning and treatment environments. Using the CT virtual shell and height-maps produced by the sensor, a two-phase 3D positioning strategy for patient set-up and monitoring is described. Phase one is an image-guided manual "approach". Phase two is automated "docking" using simulated annealing to determine optimum set-up corrections. The concepts and implementation are illustrated using archival patient data and an anthropomorphic phantom "patient" in a treatment room environment.
Affiliation:
North Western Medical Physics, Christie Hospital, Manchester, UK. infcjm@dalpha2.cr.man.ac.uk
Citation:
3D dynamic body surface sensing and CT-body matching: a tool for patient set-up and monitoring in radiotherapy. 2000, 5 (4):234-45 Comput. Aided Surg.
Journal:
Computer Aided Surgery
Issue Date:
2000
URI:
http://hdl.handle.net/10541/86528
DOI:
10.1002/1097-0150(2000)5:4<234::AID-IGS3>3.0.CO;2-8
PubMed ID:
11029157
Type:
Article
Language:
en
ISSN:
1092-9088
Appears in Collections:
All Christie Publications

Full metadata record

DC FieldValue Language
dc.contributor.authorMoore, Christopher Jen
dc.contributor.authorGraham, Paul Aen
dc.date.accessioned2009-11-19T17:15:20Z-
dc.date.available2009-11-19T17:15:20Z-
dc.date.issued2000-
dc.identifier.citation3D dynamic body surface sensing and CT-body matching: a tool for patient set-up and monitoring in radiotherapy. 2000, 5 (4):234-45 Comput. Aided Surg.en
dc.identifier.issn1092-9088-
dc.identifier.pmid11029157-
dc.identifier.doi10.1002/1097-0150(2000)5:4<234::AID-IGS3>3.0.CO;2-8-
dc.identifier.urihttp://hdl.handle.net/10541/86528-
dc.description.abstractRecent advances in radical broad-beam conformal radiotherapy for disease at non-rigid sites suggest that the treatment room set-up of patients should be performed using the CT-plan digital body surface as a reference standard. In effect, the CT-plan surface is a "virtual shell" and should be used as such. To do this requires 3D body surface information to be captured live in the treatment room and then manipulated for comparison with the CT virtual shell. To address this situation, a near real-time prototype opto-electronic dynamic 3D surface sensor has been developed and equipped with a novel software utility for visualizing and matching the disparate surfaces arising from planning and treatment environments. Using the CT virtual shell and height-maps produced by the sensor, a two-phase 3D positioning strategy for patient set-up and monitoring is described. Phase one is an image-guided manual "approach". Phase two is automated "docking" using simulated annealing to determine optimum set-up corrections. The concepts and implementation are illustrated using archival patient data and an anthropomorphic phantom "patient" in a treatment room environment.en
dc.language.isoenen
dc.subject.meshHumans-
dc.subject.meshImage Processing, Computer-Assisted-
dc.subject.meshOptics and Photonics-
dc.subject.meshRadiotherapy, Computer-Assisted-
dc.subject.meshRadiotherapy, Conformal-
dc.subject.meshTomography, X-Ray Computed-
dc.title3D dynamic body surface sensing and CT-body matching: a tool for patient set-up and monitoring in radiotherapy.en
dc.typeArticleen
dc.contributor.departmentNorth Western Medical Physics, Christie Hospital, Manchester, UK. infcjm@dalpha2.cr.man.ac.uken
dc.identifier.journalComputer Aided Surgeryen

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