TY - JOUR
T1 - Computed Tomographic Imaging of the Coronary Arterial Tree—Use of Local Tomography
AU - Spyra, Wolfgang J.T.
AU - Faridani, Adel
AU - Smith, Kennan T.
AU - Ritman, Erik L.
N1 - Funding Information:
Manuscript received December 30. 1988; revised October 3, 1989. This work was supported by the National Institutes of Health under Grants HL-04664, HV-38042. and RR-02540, by the National Science Foundation under Grant DMS87-27 16, by the Alexander von Humboldt Foundation. and by the Institute for Mathematics and Its Applications. W. J. T. Spyra and E. L. Ritman are with the Department of Physiology and Biophysics. Mayo Medical School. Rochester. MN 55905. A. Faridani is with the Department of Mathematics. Westfalische Wil- helms-University of Munster. Munster. West Germany. K. T. Smith is with the Department of Mathematlcj. Oregon State University, Corallis. OR 9733 I . IEEE Log Number 8932869.
PY - 1990/3
Y1 - 1990/3
N2 - Several years ago we demonstrated that coronary artery anatomy can be visualized using high-speed, volume-scanning X-ray CT. Using only a single bolus injection of contrast medium, the tomographic volume image, following appropriate image processing, (a) provides all angles of views of the coronary arterial tree and (b) overcomes the problem of the superposition of dye-filled cardiac chamber and pulmonary vessels on the coronary arteries. The current study demonstrates that local image reconstruction (i.e., reconstruction kernel is ∼ 2+ mm long), as distinct from more conventional global image reconstruction (i.e., 200+ mm kernel length), has the advantage that it reduces the need for operator interactive image processing. In addition, this algorithm eliminates the need for recording the X-ray projection data over the full transaxial extent of the thorax because it requires only the X-ray attenuation data over the region of the heart. This latter aspect reduces the dynamic range requirements for the sensors and could possibly reduce total X-ray exposure.
AB - Several years ago we demonstrated that coronary artery anatomy can be visualized using high-speed, volume-scanning X-ray CT. Using only a single bolus injection of contrast medium, the tomographic volume image, following appropriate image processing, (a) provides all angles of views of the coronary arterial tree and (b) overcomes the problem of the superposition of dye-filled cardiac chamber and pulmonary vessels on the coronary arteries. The current study demonstrates that local image reconstruction (i.e., reconstruction kernel is ∼ 2+ mm long), as distinct from more conventional global image reconstruction (i.e., 200+ mm kernel length), has the advantage that it reduces the need for operator interactive image processing. In addition, this algorithm eliminates the need for recording the X-ray projection data over the full transaxial extent of the thorax because it requires only the X-ray attenuation data over the region of the heart. This latter aspect reduces the dynamic range requirements for the sensors and could possibly reduce total X-ray exposure.
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U2 - 10.1109/42.52977
DO - 10.1109/42.52977
M3 - Article
AN - SCOPUS:0025399752
SN - 0278-0062
VL - 9
SP - 1
EP - 4
JO - IEEE Transactions on Medical Imaging
JF - IEEE Transactions on Medical Imaging
IS - 1
ER -