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Table 2 Cardiac magnetic resonance imaging findings

From: The relative atrial volume ratio and late gadolinium enhancement provide additive information to differentiate constrictive pericarditis from restrictive cardiomyopathy

Variable

RCM (n = 22)

CP (n = 23)

Normal (n = 25)

Pericardial thickness (mm)

2.0 ± 0.7

6.9 ± 2.6*

1.5 ± 0.4* #

LAI (mL/m2)

96.0 ± 37.0

105.6 ± 25.1

39.5 ± 9.5* #

RAI (mL/m2)

90.5 ± 35.3

71.4 ± 15.7*

38.1 ± 9.0* #

RAR

1.12 ± 0.33

1.50 ± 0.29*

1.06 ± 0.20#

LVEDV index (mL/m2)

65.4 ± 22.8

60.4 ± 15.0

81.0 ± 12.9* #

LVESV index (mL/m2)

36.2 ± 19.9

34.1 ± 13.6

33.2 ± 8.1

LVSV index (mL/m2)

29.1 ± 9.9

26.2 ± 9.0

47.7 ± 8.5* #

LVEF (%)

46.6 ± 11.8

44.2 ± 12.4

59.1 ± 6.4* #

RVEDV index (mL/m2)

66.8 ± 19.9

59.0 ± 13.1

81.3 ± 12.8* #

RVESV index (mL/m2)

37.3 ± 18.1

32.7 ± 10.9

31.6 ± 7.1

RVSV index (mL/m2)

29.5 ± 9.3

26.4 ± 9.6

49.7 ± 9.0* #

RVEF (%)

45.8 ± 11.9

44.7 ± 12.9

61.1 ± 6.3* #

Septal bounce, %

0

22 (95.7)*

0* #

LGE (n, %)

7 (31.8)

0*

0* #

  1. LAI = left atrial volume index; RAI = right atrial volume index; RAR = relative atrial volume ratio; EDV = end-diastolic volume; ESV = end-systolic volume; SV = stroke volume; EF = ejective fraction; Comparison with RCM *P < 0.05; Comparison with CP #P < 0.05