Dosimetric evaluation of a computed tomography treatment system

S. C. Prasad, G. P. Glasgow, J. A. Purdy

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Pixel-by-pixel correction for tissue inhomogeneities was performed with a CT interfaced treatment planning system. The CT number for each pixel was converted to a physical density. Comparison of the resulting data with dose measurements in a RANDO phantom shows that pixel calculation overestimates dose by 5-7% at locations adjoining the lung, where loss of scatter is not taken into account by the algorithm. However, the new system does have some advantages over conventional treatment planning systems.

Original languageEnglish
Pages (from-to)777-781
Number of pages5
Issue number3
StatePublished - Jan 1 1979


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