title: A dwell position verification method for high dose rate brachytherapy.
abstract: Misplacement of dwell positions is a potential source of misadministration in high dose rate brachytherapy. In this work we present a dwell position verification method using fluoroscopic images. A mobile C-arm fluoroscopic machine is used to take a snapshot of the treatment machine's check cable as it reaches the most distal dwell position. This fluoroscopic image is displayed side-by-side with a treatment planning image on a dual monitor relay station at the HDR treatment console. Any discrepancy between the check cable's position on the verification image and the intended dwell position on the planning image can be identified immediately, thus avoiding the possibility of treating the wrong target volume.
authors.affiliation: Department of Radiation Oncology, SUNY Upstate Medical University, 750 East Adams Street, Syracuse, New York 13210, USA. liul@upstate.edu
authors.forename: Lizhong
authors.initials: L
authors.lastname: Liu
authors.forename: Satish C
authors.initials: SC
authors.lastname: Prasad
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Bassano
authors.forename: Joel
authors.initials: J
authors.lastname: Heavern
authors.forename: Bonnie
authors.initials: B
authors.lastname: Keshler
authors.forename: Seung S
authors.initials: SS
authors.lastname: Hahn
mesh_terms: D001918:Brachytherapy / Q000295:instrumentation* / Q000379:methods*; D006801:Humans; D011785:Quality Assurance, Health Care / Q000379:methods; D011856:Radiographic Image Enhancement / Q000295:instrumentation* / Q000379:methods*; D011880:Radiotherapy Planning, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation* / Q000379:methods*