Article Figures & Data
Figures
- FIGURE 1.
Patient forearm, on follow-up visit (about 7 wk after therapy), with radiation skin injury demonstrating moist desquamation.
- FIGURE 2.
Posttherapy scan of abdomen, with arm at side, demonstrating persistent retention of radiotracer at site of extravasation (500 cps).
- FIGURE 3.
Putative distribution of radioactive source. Radioactive extravasate (Ο) mixed with dermis irradiates basal/germinative epidermal layer.
Tables
Collection thickness (cm) 131I 153Sm 177Lu 18F 68Ga 124I 0.5 4.5% 1.3% 0.7% 10.5% 1.5% 7.2% 1 7.5% 2.0% 1.1% 17.4% 2.5% 11.9% 1.5 9.8%* 2.6% 1.5% 22.9%* 3.3% 15.6% * Results verified by Monte Carlo simulation.
For β− emitters, collections are assumed to have radius 1/μ, where μ is mass attenuation coefficient for dominant photon energy. For positron emitters, collections are assumed to have radius of 10 cm.
Extravasation of a Therapeutic Dose of 131I-Metaiodobenzylguanidine: Prevention, Dosimetry, and Mitigation
