Accuracy in catheter reconstruction in computed tomography planning of high dose rate prostate brachytherapy Journal Article

  


Authors: Fung, A. Y. C.; Zaider, M.
Article Title: Accuracy in catheter reconstruction in computed tomography planning of high dose rate prostate brachytherapy
Abstract: In high dose rate prostate brachytherapy, inadequate reconstruction of catheter geometry in treatment planning may result in erroneous dose delivery. Catheters may be digitized with: (1) Parallel reconstruction: digitized at only one point and assumed parallel and horizontal; (2) Straight reconstruction: digitized at both ends and assumed straight while at an angle; (3) Slice-by-slice reconstruction: digitized on all slices to obtain exact geometry. Our results show that individual catheters are often not parallel to each other, but fairly straight. Parallel reconstruction is the least accurate for dosimetric planning, while slice-by-slice reconstruction is time-consuming. Straight (two-point) reconstruction represents a balance between accuracy and efficiency. (C) 2000 American Association of Physicists in Medicine.
Keywords: clinical article; controlled study; treatment planning; cancer radiotherapy; accuracy; reproducibility of results; computer assisted tomography; tomography, x-ray computed; time factors; prostate cancer; prostatic neoplasms; prostate; dosimetry; models, statistical; catheterization; brachytherapy; image processing, computer-assisted; software; reconstruction; ct; image reconstruction; catheter; hdr; human; male; priority journal; article
Journal Title: Medical Physics
Volume: 27
Issue: 9
ISSN: 0094-2405
Publisher: American Association of Physicists in Medicine  
Date Published: 2000-09-01
Start Page: 2165
End Page: 2167
Language: English
DOI: 10.1118/1.1288670
PUBMED: 11011746
PROVIDER: scopus
DOI/URL:

http://www.scopus.com/inward/record.url?eid=2-s2.0-0033800526&partnerID=40&md5=9249ce34797a874bfb3389c9914269e2
Notes: Export Date: 18 November 2015 -- Source: Scopus
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MSK Authors
  1. Albert Fung
    20 Fung
  2. Marco Zaider
    171 Zaider
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