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Fig. 14C —Diagrams show concept of full-volume versus narrow-angle
imaging compared with 2D imaging. When more than one cardiac cycle is used, it
becomes important to match individual frames within a cardiac cycle. As
illustrated, when one cardiac cycle is acquired, each cardiac cycle is divided
into multiple frames; total of 11 frames are shown in this example. Number of
frames used for each acquisition depends on heart rate (R-R interval) as well
as frame rate of acquisition machine. It is desirable (but not always
possible) to have same R-R interval for each cardiac cycle so that each frame
can be matched. (Courtesy of TomTec Imaging Systems GmbH, Munich, Germany)
