Three-dimensional coronary angiography of the perfused rat heart.
The purpose of this work was to visualize the whole three-dimensional coronary artery tree of the perfused beating rat heart using three-dimensional MRI. The spatial resolution amounts to 140 microns. Also, vessels having smaller diameters could be detected. Different strategies for the visualization of the three-dimensional coronary angiograms including maximum intensity projection, data thresholding, and segmentation, were shown. The coronary artery tree was best visualized by hysteresis threshold segmentation and subsequent surface reconstruction.
Roder
F
F
Physikalisches Institut, Universität Würzburg, Germany.
Hiller
K H
KH
Henz
P
P
von Kienlin
M
M
Bauer
W R
WR
Ertl
G
G
Haase
A
A
D000818:Animals; D017023:Coronary Angiography / Q000379:methods*; D003331:Coronary Vessels / Q000033:anatomy & histology*; D046508:Culture Techniques; D006321:Heart; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D018810:Magnetic Resonance Angiography / Q000379:methods*; D010477:Perfusion; D051381:Rats; D012680:Sensitivity and Specificity; D013499:Surface Properties