Cardiac magnetic resonance in patients with acute cardiac injury and unobstructed coronary arteries

Table 1 Demographic characteristics of the study group

Patient: 190

Age (median ± SD) years: 50 ± 20

Gender

Male 92 (48%)

Female 98 (52%)

ECG at presentation

Normal in 11 patients (6%)

ST-segment elvation in 130 patients (68%)

ST-segment depression in 40 patients (21%)

Negative T-waves in 9 patients (5%)

Mean time interval from presentation to CMR 4 ± 2 d (median ± SD); 1-14 d (range)

CMR: Cardiac magnetic resonance.

Table 2 Results

Tako-tsubo: 32 patients (17%)	LGE: Absent
Myocarditis: 90 patients (47%)	LGE: Epicardial or intramiocardial
Myocardial infarction: 40 patients (21%)	LGE: Subendocardial or transmural
No clear diagnosis: 28 patients (15%)	LGE: Absent

LGE: Late gadolinium enhancement.

Table 3 Comparison with previous studies

Ref.	Year	No. of patients	Age of patients	Time from presentation to CMR (d)	Diagnosis
					Infarction	Myocarditis	Tako-tsubo	Other	No diagnosis
[8]	2007	60	44 ± 17	1-90 (mean 14.5)	11.6%	50%	1.70%	1.70%	35%
[18]	2009	80	48	4	15%	63%	11%	5.50%	5.50%
[19]	2011	49	45 ± 14	1	0	29%	10%	43%	18%
[20]	2011	130	54 ± 17	6.2 ± 5.3	28.5%	26.1%	21.50%	0.80%	23.10%

CMR: Cardiac magnetic resonance.