Analytic representation of the dose from a 32P-coated stent.
The dose along the radial direction located at the midplane of a radioactive stent, simulated by a uniform cylinder of 32P, is represented by an analytical function consisting of the sum of two modified exponentials. This procedure reproduces values obtained from numerical integration, for which no closed form exists, to within 5% for distances up to 6 mm from the wall and for stent diameters from 2-6 mm.
Prestwich
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Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada.
D017130:Angioplasty / Q000379:methods*; D000818:Animals; D001161:Arteriosclerosis / Q000532:radiotherapy / Q000601:surgery; D001699:Biometry; D055592:Biophysical Phenomena; D001703:Biophysics; D006801:Humans; D009131:Muscle, Smooth, Vascular / Q000528:radiation effects; D010761:Phosphorus Radioisotopes / Q000008:administration & dosage*; D011879:Radiotherapy Dosage; D012008:Recurrence; D015607:Stents
D010761:Phosphorus Radioisotopes