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Table 2 CMR Diagnostic Criteria for LVNC

From: Cardiovascular magnetic resonance based diagnosis of left ventricular non-compaction cardiomyopathy: impact of cine bSSFP strain analysis

 

All patients and healthy subjects

Subgroup A

Subgroup B

Subgroup C

Subgroup D

A vs. B

A vs. C

A vs. D

C vs. D

All LVNC phenotype patients

All healthy subjects

p-values

LVNC phenotype patients (normal LV volumetrics)

Healthy subjects (normal LV volumetrics)

Healthy subjects (normal LV volumetrics, not meeting any LVNC criteria)

Healthy subjects (normal LV volumetrics, meeting one or more LVNC criteria)

p-values

p-values

p-values

p-values

(n = 59)

(n = 36)

 

(n = 25)

(n = 34)

(n = 16)

(n = 18)

    

Number of NC segmentsb

8 (6, 9)

0 (0, 0)

< 0.001

8 (6, 9)

0 (0, 0)

0 (0, 0)

0 (0, 1)

< 0.001

< 0.001

< 0.001

0.013

Maximum NC:C ratiob

3.8 (3.0, 4.3)

1.2 (0.9, 1.6)

< 0.001

3.5 (3.2, 4.3)

1.1 (0.9, 1.3)

1.0 (0.8, 1.2)

1.2 (0.9, 2.5)

< 0.001

< 0.001

< 0.001

0.182

NC:C > 2.3a

59 (100%)

7 (19.4%)

< 0.001

25 (100%)

6 (17.7%)

0 (0%)

6 (33.3%)

< 0.001

< 0.001

< 0.001

0.020

Percentage of NC mass (%)b

40.8 (35.7, 45.9)

19.5 (17.2, 23.3)

< 0.001

42.2 (38.7, 47.1)

19.3 (17.1, 23.6)

17.2 (14.8, 18.5)

23.3 (20.1, 30.7)

< 0.001

< 0.001

< 0.001

< 0.001

NC mass > 20%a

59 (100%)

16 (44.4%)

< 0.001

25 (100%)

14 (41.2%)

0 (0%)

14 (77.8%)

< 0.001

< 0.001

0.025

< 0.001

NC mass > 25%a

59 (100%)

5 (13.9%)

< 0.001

25 (100%)

5 (14.7%)

0 (0%)

5 (27.8%)

< 0.001

< 0.001

< 0.001

0.046

NC mass/BSA (g/m2)b

36.1 (32.3, 42.9)

13.6 (10.5, 17.2)

< 0.001

35.1 (30.9, 39.2)

12.7 (10.4, 17.0)

10.0 (8.8, 11.6)

17.0 (15.0, 23.7)

< 0.001

< 0.001

< 0.001

< 0.001

NC mass > 15 g/m2a

59 (100%)

15 (41.7%)

< 0.001

25 (100%)

13 (38.2%)

0 (0%)

13 (72.2%)

< 0.001

< 0.001

0.009

< 0.001

  1. Data presented as n (%) or median (IQR)
  2. NC:C >2.3 = maximum end-diastolic non-compacted (NC): compacted (C) myocardium diameter ratio >2.3 in at least one segment.
  3. CMR cardiovascular magnetic resonance, LVNC left ventricular non-compaction cardiomyopathy, LV left ventricle, NC non-compacted myocardium, C compacted myocardium, BSA body surface area
  4. aFisher’s exact test
  5. bWilcoxon rank sum test