411 REFERENCE · Wikibooks
Radiation Oncology/WBRT
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Yale; 2007 PMID 17276616 -- "A dosimetric evaluation of conventional helmet field irradiation versus two-field intensity-modulated radiotherapy technique." (Yu JB, Int J Radiat Oncol Biol Phys. 2007 Jun 1;68(2):621-31. Epub 2007 Feb 2.)
Comparison of opposed laterals and IMRT for helmet technique. V98 100% vs. 99.5%; Dmax 105% vs. 113%
Conclusion: IMRT improves dose homogeneity but clinical implications not yet clear