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Table 2 Comparison of parameters between RG and NRG

From: Can the apparent transverse relaxation rate (R2*) evaluate the efficacy of concurrent chemoradiotherapy in locally advanced nasopharyngeal carcinoma? a preliminary experience

 

RG (n = 26)

NRG (n = 15)

t/U

p

R2*preT (Hz)

43.78 ± 12.00

48.02 ± 13.69

–1.034Δ

0.307

R2*postT (Hz)

58.23 ± 12.13

37.83 ± 9.62

5.595Δ

< 0.001

ΔR2* (Hz)

16.10 (20.6–12.43)

–10.19 ± 7.57

372#

< 0.001

  1. ΔIndependent-samples t-test (data are reported as mean ± SD); #Mann–Whitney U test (data are reported as median (3rd quartile–1st quartile)
  2. RG, responding group; NRG, nonresponding group; R2*preT, R2* value of tumor before CCRT; R2*postT, R2* value of tumor after CCRT; ΔR2*, R2*postT – R2*preT; CCRT, concurrent chemoradiotherapy
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BMC Medical Imaging

ISSN: 1471-2342

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