1. A method for determining a plurality of ECG-triggered recording times for a cardiac imaging recording of a patient, comprising: recording a plurality of images of a heart of the patient; assigning the images to specific cardiac phase times; comparing the images for determining a similarity measure; identifying a group of images having the similarity measure in a predefined area; and specifying the cardiac phase times associated with the images in the group as the ECG-triggered recording times to be used in the cardiac imaging recording.