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Table 2 Evaluated items of PTVs and OARs

From: Evaluation of plan robustness on the dosimetry of volumetric arc radiotherapy (VMAT) with set-up uncertainty in Nasopharyngeal carcinoma (NPC) radiotherapy

PTVs/OARs

Evaluated items

PTVp, PTVn, PTV

ΔD2cc, ΔD98%, ΔD95%, ΔDmean, ΔTCP

CTVp, CTVn, CTV

 

GTVp, GTVn

 

Brain Stem, Brain Stem PRV

ΔDmax, ΔNTCP

Spinal Cord, Spinal Cord PRV

 

Lens L, Lens R

 

Optic Nerve L, Optic Nerve R, Optic Chiasma

 

Parotid L, Parotid R

ΔDmean, ΔNTCP

  1. PTV, planning target volume; PTVp, planning target volume of GTVp; PTVn, planning target volume of GTVn; CTV, clinical target volume; CTVp, primary tumor sites and their invasion range; CTVn, the clinical target volume of GTVn; GTVp, the clinical target volume of GTVp; GTVn, cervical metastatic lymph node. Dmean and Dmax represented the mean dose and the maximum dose. Dx% represented the dose (in Gy) received by x% of the volume, Vy Gy the volume (in percentage) received by y Gy. D2cc the dose (in Gy) received by a volume of 2 cm3
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Radiation Oncology

ISSN: 1748-717X

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