title: Comparison of automated and manual shielding block fabrication.
abstract: This work reports the results of a study comparing computer controlled and manual shielding block cutting. The general problems inherent in automated block cutting have been identified and minimized. A system whose accuracy is sufficient for clinical applications has been developed. The relative accuracy of our automated system versus experienced technician controlled cutting was investigated. In general, it is found that automated cutting is somewhat faster and more accurate than manual cutting for very large fields, but that the reverse is true for most smaller fields. The relative cost effectiveness of automated cutting is dependent on the percentage of computer designed blocks which are generated in the clinical setting. At the present time, the traditional manual method is still favored.
authors.affiliation: Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor 48109.
authors.forename: K J
authors.initials: KJ
authors.lastname: Weeks
authors.forename: B A
authors.initials: BA
authors.lastname: Fraass
authors.forename: D L
authors.initials: DL
authors.lastname: McShan
authors.forename: S S
authors.initials: SS
authors.lastname: Hardybala
authors.forename: E A
authors.initials: EA
authors.lastname: Hargreaves
authors.forename: A S
authors.initials: AS
authors.lastname: Lichter
mesh_terms: D006801:Humans; D011835:Radiation Protection / Q000295:instrumentation*; D011880:Radiotherapy Planning, Computer-Assisted; D013679:Technology, Radiologic / Q000295:instrumentation