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Table 1 Dosimetric parameters describing the differences between the standard parallel-opposed pair beam arrangement vs. the proposed esophageal-sparing ES-IMRT plans

From: Intentional avoidance of the esophagus using intensity modulated radiation therapy to reduce dysphagia after palliative thoracic radiation

Parameter Parallel-opposed pair plan ES-IMRT esophagus sparing plan
D99 (GTV) 28.0 ± 1.0 Gy 24.7 ± 1.4 Gy
D95 (GTV) 28.9 ± 8.8 Gy 28.8 ± 4.8 Gy
D5 (GTV) 34.0 ± 14 Gy 32.9 ± 7.4 Gy
D99 (PTV) 26.5 ± 2.5 Gy 22.0 ± 0.8 Gy
D95 (PTV) 28.1 ± 4.6 Gy 25.9 ± 3.6 Gy
D5 (PTV) 33.8 ± 12 Gy 32.7 ± 4.4 Gy