Comparison of Different Contrast Agents in Detecting Cardiac Right-to-Left Shunt in Patients with a Patent Foramen Ovale during Contrast-Transthoracic Echocardiography

Table 1

Baseline characteristics of the study population.

Clinical characteristics	(%)
Sex (male/female)	36/48 (57.0%)
Age (y), mean ± SD	39.2 ± 4.6
Diabetic mellitus	10/84 (11.9%)
Hyperlipidemia	8/84 (9.5%)
Arrhythmia	2/84 (2.3%)
Hypertension	11/84 (13.1%)
Reason for visit
Ischemic stroke	24/84 (28.5%)
Migraine with aura	20/84 (23.8%)
Migraine without aura	8/84 (9.5%)
TIA	17/84 (20.2%)
Cerebral infarction	15/84 (17.9%)

TIA = transient ischemic attack.