Standardizing dosimetry in esophageal PDT: an argument for use of centering devices and removal of misleading units.
A simple standardization of esophageal photodynamic therapy light dosimetry is proposed. Calculations of the effect on local treatment dose of using non-centered diffusing fibers have been made and the methods of calculating light energy dose to the treatment area within a centering balloon are discussed. A requirement for centering devices and standard units of Joules per cm(2) of treatment area are indicated.
Stone
Nicholas
N
Cranfield Postgraduate Medical School, Gloucestershire Royal Hospital, Great Western Road, Gloucester, Gloucestershire, GL1 3NN, England. n.stone@medical-research-centre.com
D004935:Esophageal Diseases / Q000188:drug therapy; D004938:Esophageal Neoplasms / Q000188:drug therapy; D006801:Humans; D008027:Light; D010778:Photochemotherapy / Q000379:methods* / Q000592:standards*; D017319:Photosensitizing Agents / Q000627:therapeutic use; D011874:Radiometry / Q000295:instrumentation / Q000379:methods* / Q000592:standards*
D017319:Photosensitizing Agents