Surgery – Truss – Pad
Patent
1986-08-18
1988-04-26
Howell, Kyle L.
Surgery
Truss
Pad
324309, A61B 505
Patent
active
047397667
ABSTRACT:
High speed selective imaging of blood vessels is accomplished by subjecting an area of interest to a plurality of short repetition time NMR pulse sequences during each high velocity period and low velocity period of a heart beat cycle for several or more heart beats. The imaging data from each NMR pulse sequence is collected and weighted according to whether it corresponds to a high velocity period or a low blood velocity period. The weighted imaging data corresponding to high blood velocity periods is then subtracted from weighted imaging data corresponding to low blood velocity periods and the resulting data used to form an image which depicts only the blood vessels of interest. Also, an imaging data processing apparatus is disclosed which operates in real time so as to permit an operator to optimize diagnostic performance.
REFERENCES:
patent: 4086916 (1978-05-01), Freeman et al.
patent: 4166454 (1979-09-01), Meijer
patent: 4204225 (1980-05-01), Mistretta
patent: 4504908 (1985-03-01), Riederer
patent: 4516582 (1985-05-01), Redington
patent: 4523596 (1985-06-01), Macovski
patent: 4532474 (1985-07-01), Edelstein
patent: 4570119 (1986-02-01), Wehrli et al.
patent: 4573014 (1986-02-01), Riederer
patent: 4587489 (1986-06-01), Wehrli
patent: 4602641 (1986-07-01), Feinberg
patent: 4643979 (1987-01-01), Riederer
Frahm, et al. "Rapid NMR Imaging of Dynamic Processes Using the Flash Technique" Mag. Res. in Med. 3:321-327 (1986).
Herfkens, et al. "Rapid Dynamic NMR Imaging of the Heart: Initial Clinical Experience" Proc. Soc. Mag. Res. in Med., Montreal, Aug. 1986.
Mansfield, et al. "Biological and Medical Imaging by NMR" J. Mag. Res. 29: 355-373 (1978).
Kaufman, et al. Nuclear Magnetic Resonance Imaging in Medicine. Igaki-Shoin, New York, 1981.
Hasse, et al. "Rapid Images and NMR Movies" Proc. Soc. Mag. Res. in Med., London Aug. 1985.
Wedeen, et al. "Projective Imaging of Pulsatile Flow with Magnetic Resonance" Science 230:946-948 (1985).
Duke University
Howell Kyle L.
Jenkins Richard E.
Smith Ruth S.
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