Temporal Correlation Images Derived from Sequential MR Scans

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Abstract
In this paper a new technique is presented for measuring the local temporal changes and correlation between them on spatially aligned image sequences. A temporal correlation image is derived from a sequence of static images (frames). The method is illustrated in an application to the dynamic MRI of the rabbit kidney following bolus injection of Gd-DTPA. The similarity maps clearly separate the dynamic response of the cortex to the indicator from that of the medulla and, therefore, segment the kidney into two regions. Regions with different temporal dynamics can be displayed in different colors using a lookup table designed for that purpose.

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