The application of exercise stress cardiovascular magnetic resonance in patients with suspected dilated cardiomyopathy

Table 1 Characteristics of Healthy Subjects and Patients with Suspected Dilated Cardiomyopathy

	Healthy Subjects (n = 100)	Patients with suspected DCM (n = 60)	P Value
CLINICAL CHARACTERISTICS
Age, years	38 ± 11	34 ± 14	0.102
Males, n (%)	48 (48)	56 (93)	<0.001
BSA, m²	1.71 ± 0.22	1.92 ± 0.23	<0.001
BMI, kg/m²	22.7 ± 3.3	26.1 ± 5.8	<0.001
Physical Activity
Inactive, n (%)	13 (13)	14 (23)	0.406
Moderately Inactive, n (%)	11 (11)	7 (12)
Moderately Active, n (%)	17 (17)	9 (15)
Active, n (%)	59 (59)	30 (50)
Heart Rate, bpm	70 ± 13	68 ± 15	0.342
Systolic Blood Pressure, mmHg	120 ± 15	122 ± 15	0.517
Diastolic Blood Pressure, mmHg	72 ± 11	72 ± 14	0.703
CMR CHARACTERISTICS
Indexed LV mass, g/m²	47 ± 9	66 ± 13	<0.001
Maximal Wall Thickness, mm	7.5 ± 1.2	8.8 ± 1.6	<0.001
Indexed LV EDV, mL/m²	80 ± 11	115 ± 20	<0.001
Indexed LV ESV, mL/m²	33 ± 7	63 ± 19	<0.001
LV Ejection Fraction, %	59 ± 5	45 ± 9	<0.001
Indexed RV EDV, mL/m²	89 ± 13	109 ± 26	<0.001
Indexed RV ESV, mL/m²	42 ± 10	58 ± 16	<0.001
RV Ejection Fraction, %	53 ± 6	47 ± 7	<0.001
Circumferential Strain, %	−23.3 ± 2.7	−16.0 ± 3.7	<0.001
Radial Strain, %	50.6 ± 10.1	28.1 ± 9.5	<0.001
Longitudinal Strain, %	−20.9 ± 2.4	−16.4 ± 3.6	<0.001

Abbreviations: BSA Body surface area, BMI Body mass index, LV Left ventricular, RV Right ventricular, DCM Dilated cardiomyopathy, EDV end-diastolic volume, ESV end-systolic volume

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