Clinical Study

Delivery Parameter Variations and Early Clinical Outcomes of Volumetric Modulated Arc Therapy for 31 Prostate Cancer Patients: An Intercomparison of Three Treatment Planning Systems

Table 1

Patient characteristics. Thirty-one patients were classified according to the TNM staging system, Gleason score, PSA level, risk grade, and prior hormone therapy. The number of plans created by each treatment planning system is also shown.

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T stage
 1c15843
 2a7232
 2b7331
 2c1100
 3b1100
N stage
 03115106
M stage
 03115106
Gleason score
 68431
 716853
 87322
PSA level
 0–10 ng/dL18954
 10–20 ng/dL11542
 >20 ng/dL2110
Risk grade
 Low6321
 Intermediate17953
 High8332
Hormone therapy
 (+)201073
 (−)11533