A display system for ultrasound images and ECG data produces a common display of a cardiac ultrasound image of a given view and ECG traces relevant to that ultrasound view. The ECG traces relate to the heart anatomy seen in the ultrasound image. The user is given the ability to select certain ECG lead signals for display in conjunction with specific views of the heart. ST elevation values for the ECG leads may also be shown to enable the clinician to correlate electrical abnormalities with anatomical abnormalities of the ultrasound image such as abnormal wall motion or thickening. The ST elevation values are displayed on a bullseye chart in association with heart regions related to the leads for which the ST values were detected.