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Table 4 Optical coherence tomography analysis of structure parameters

From: Assessment of radial artery atherosclerosis in acute coronary syndrome patients: an in vivo study using optical coherence tomography

 

Normal group

(n = 94)

RIH group

(n = 69)

RAP group

(n = 76)

P

LA, mm2

6.60 (4.92–8.34)

6.58 (4.53–8.16)

5.71 (4.63–7.46)

0.349

MD, mm

2.87 (2.51–3.22)

2.89 (2.40–3.21)

2.68 (2.42–3.05)

0.313

MIT, mm

0.08 (0.05–0.10)

0.16 (0.13–0.19)a

0.17 (0.12–0.20)b

< 0.001

IMR

0.50 (0.35–0.72)

1.33 (1.11–1.90)a

1.10 (0.81–1.83)b

< 0.001

IEI

1.81 (1.50–2.31)

3.08 (2.75–3.51)a

3.05 (2.75–3.78)b

< 0.001

ITI

0.41 (0.35–0.50)

0.51 (0.44–0.62)a

0.52 (0.42–0.67)b

< 0.001

%LN

25.94 (23.54–30.40)

26.83 (24.52–29.75)

29.19 (26.58–32.24)b,c

0.002

Intima area, mm2

0.62 (0.49–0.84)

0.80 (0.58–0.96)a

0.82 (0.66–1.03)a,b

< 0.001

Media area, mm2

1.58 (1.35–1.93)

1.58 (1.16–2.03)

1.54 (1.31–1.81)

0.922

  1. LA lumen area, MD mean diameter, MIT maximal intimal thickness, IMR intima/media thickness ratio, IEI Intimal eccentricity index, ITI intimal area/medial area, %LN luminal narrowing index, others as in Table 1
  2. Values are n (%), or median (25th, 75th percentiles)
  3. p < 0.05 for anormal versus RIH; bnormal versus RAP; cRIH versus RAP