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Table 1 Dynamic changes of parotid MR parameters during radiotherapy

From: Early evaluation of radiation-induced parotid damage in patients with nasopharyngeal carcinoma by T2 mapping and mDIXON Quant imaging: initial findings

 

pre-RT

mid-RT

post-RT

V (cm3)

27.2 ± 8.2

19.4 ± 5.5a

19.5 ± 5.7a

T2 (msec)

71.7 ± 5.2

76.0 ± 7.3a

79.4 ± 9.0a,b

FF (%)

38.2 ± 9.7

42.1 ± 10.3a

38.8 ± 13.5b

  1. Note: V volume, FF fat fraction, pre-RT within 2 weeks before radiotherapy, mid-RT 5 weeks after the beginning of radiotherapy, post-RT 4 weeks after radiotherapy. a P < 0.017 compared with pre-RT and b P < 0.017 compared with mid-RT using paired sample t test with Bonferroni correlation
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Radiation Oncology

ISSN: 1748-717X

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