Investigations Our practice can perform a series of cardiologic investigations. Click on each exam to see a brief description of it: ELECTROCARDIOGRAM (ECG) ECHOCARDIOGRAPHY (ECHO) EXERCISE STRESS TEST HOLTER 24-hr AMBULATORY BLOOD PRESSURE MONITORING DOBUTAMINE STRESS ECHO (DSE) CAROTID ULTRASOUND TRANSESOPHAGEAL ECHOCARDIOGRAPHY ANKLE-BRACHIAL INDEX MEASUREMENT