Considerations on radiation source selection and utilization in vascular brachytherapy.
Three radiation sources have been approved for commercial use in vascular brachytherapy. The beta sources ((90)Strontium and (32)Phosphorous) are more popular because of less radiation protection concerns than gamma sources. Because (90)Strontium has a longer half-life than (32)Phosphorous, it requires less frequent source exchanges. Also, because (90)Strontium is more penetrating, a similar benefit can be achieved with lower delivered doses. Based on these advantages, (90)Strontium is the preferred isotope for vascular brachytherapy.
Crocker
Ian
I
Emory University School of Medicine, Atlanta, Georgia, USA. ian@radonc.emory.org
D015906:Angioplasty, Balloon, Coronary / Q000379:methods; D001918:Brachytherapy / Q000379:methods*; D023903:Coronary Restenosis / Q000532:radiotherapy*; D006801:Humans; D007496:Iridium Radioisotopes / Q000627:therapeutic use; D010761:Phosphorus Radioisotopes / Q000627:therapeutic use; D013326:Strontium Radioisotopes / Q000627:therapeutic use; D015021:Yttrium Radioisotopes / Q000627:therapeutic use
D007496:Iridium Radioisotopes; D010761:Phosphorus Radioisotopes; D013326:Strontium Radioisotopes; D015021:Yttrium Radioisotopes