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Table 4 Correlation analysis of parotid glands V30 and volumetric and positional variations

From: Rules of parotid gland dose variations and shift during intensity modulated radiation therapy for nasopharyngeal carcinoma

 

Pearson correlation

Sig. (2-tailed)

GTVnx

0.226

0.002

GTVnx reduction

−0.200

0.006

GTVnd

−0.120

0.129

GTVnd reduction

0.041

0.610

PG volume

0.006

0.938

PG volume reduction

0.052

0.447

D1

0.052

0.482

D1 reduction

−0.097

0.184

DLM

0.089

0.224

DLM shift

−0.114

0.118

DMM

0.090

0.220

DMM shift

0.281

0.000

  1. Abbreviations: D1 represents the transverse diameter of the nasopharyngeal level. The other abbreviations are the sa me as the Table 2.
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Radiation Oncology

ISSN: 1748-717X

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