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Table 2 Comparisons of the DVH-based parameters for targets in the present study (n = 10).

From: Dosimetric comparison using different multileaf collimeters in intensity-modulated radiotherapy for upper thoracic esophageal cancer

Targets MLC leaf width
  10 mm 4 mm p value
Pgtv    
   Dmax 7056.1 ± 127.2 6996.3 ± 88.9 0.24
   Dmin 6035.5 ± 113.7 6132.2 ± 107.4 0.06
   Dmean 6495.2 ± 39.0 6491.1 ± 30.4 0.44
PTV    
   Dmean 5478.5 ± 78.4 5489.2 ± 64.3 0.74
  1. DVH: dose volume histogram; MLC: multileaf collimator; Pgtv: planning gross target volume; PTV: planning target volume; Dmax, Dmin and Dmean: the maximum, minimum and average irradiation dose of the targets received.