| Literature DB >> 3352544 |
A Wu1, K Ulin, E S Sternick.
Abstract
To evaluate and optimize dose homogeneity of 192Ir interstitial breast implants, we define a quantity, the dose homogeneity index (DHI), as follows: DHI = [V(TDR)--V(HDR)]/V(TDR), where V(TDR) denotes the total treatment volume enclosed by the prescribed treatment dose rate (TDR) and V(HDR) denotes the volume enclosed by high-dose rate (HDR), which is 1.5 X TDR or greater. We have used the DHI to examine and compare 192Ir double-plane implants of various sizes planned by the Memorial system or the Tufts system. Criteria have been suggested for the number of planes required for implants in a given treatment volume. Anderson's volume-dose histogram with inverse square suppression is adopted for illustration.Entities:
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Year: 1988 PMID： 3352544 DOI： 10.1118/1.596152
Source DB: PubMed Journal: Med Phys ISSN： 0094-2405 Impact factor: 4.071