1. A method for acquiring cardiac image data from an examination subject, comprising the steps of: interacting with an examination subject using a non-ciné first image acquisition technique, selected from the group consisting of image techniques that obtain a morphological image of the examination subject and techniques that obtain a functional image of the examination subject, to acquire cardiac image data forming a first tomogram only during a portion of a cardiac cycle, and/or not in every cardiac cycle; in alternation with said first image acquisition technique, interacting with the examination subject with a second image acquisition technique, that is a ciné technique, to acquire cardiac image data forming a second tomogram at times in which image data acquisition using the first image acquisition technique is not occurring; and acquiring said image data forming said first tomogram with a slice position, and acquiring said image data forming said second tomogram with the same slice positioning.