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Table 4 Correlation analysis of clinical parameters with iGTV V95%

From: Bone matching versus tumor matching in image-guided carbon ion radiotherapy for locally advanced non-small cell lung cancer

Parameter

Spearman’s r

  

P

 

△V95%T

△V95%B

 

△V95%T

△V95%B

Fraction dose Gy(RBE)

0.0717

-0.1175

 

0.6601

0.4701

Initial iGTV volume (cm3)

0.2591

0.1401

 

0.1065

0.3885

Changes of iGTV (cm3)

0.3254

0.2980

 

0.0405

0.0618

Relative changes of iGTV (%)

0.3316

0.2990

 

0.0366

0.0609

△pitch (°)

0.3481

0.2468

 

0.0277

0.1247

△table (°)

0.3850

0.4170

 

0.0142

0.0074

△roll (°)

0.1141

0.1313

 

0.4834

0.4194

  1. △V95%T, Differences of iGTV V95% between Plan-T and Plan-O; △V95%B, Differences of iGTV V95% between Plan-B and Plan-O; △pitch, △table, and △roll, the difference between the rotation error around X-, Y-, and Z- axis of TM and BM
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Radiation Oncology

ISSN: 1748-717X

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