Temporal correlation images derived from sequential MR scans.
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.
Rogowska
J
J
Department of Radiology, Massachusetts General Hospital, Charlestown 01907.
Wolf
G L
GL
D000818:Animals; D003287:Contrast Media; D005682:Gadolinium; D019786:Gadolinium DTPA; D007091:Image Processing, Computer-Assisted; D007672:Kidney Cortex / Q000033:anatomy & histology / Q000502:physiology; D007679:Kidney Medulla / Q000033:anatomy & histology / Q000502:physiology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011817:Rabbits; D013997:Time Factors
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA