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. Author manuscript; available in PMC: 2008 Aug 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2007 Apr 30;68(5):1402–1409. doi: 10.1016/j.ijrobp.2007.02.037

Figure 4. Comparison of mid-sagittal isodose curves for plans including a single PA spine field.

Figure 4

In smaller patients, extended distance treatments allowed planning of a single PA spine field. Mid-sagittal isodose curves from representative plans are pictured from the same patient with a single PA spine IMRT field (A) and a conventional PA spine field (B). Note the improved coverage of the target volume in the cervical and lumbosacral regions.