Method for calculating wave velocities in blood vessels

Details Method for calculating wave velocities in blood vessels Method for calculating wave velocities in blood vessels

1998-04-08

2000-10-31

Lateef, Marvin M.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

600419, 324306, 324309, 382128, A61B 555

Patent

active

061415782

ABSTRACT:
An MRI system produces a series of image frames of a blood vessel using a cardiac gated, M-mode Fourier-velocity-encoding pulse sequence. The pulse-wave velocity of a velocity wave traversing the field of view of the image frames is determined by cross correlating a selected reference image frame with the other image frames to locate the relative position of the velocity wave in each of those other image frames, and calculating the propagation velocity of the velocity wave from its relative positions in those other image frames.

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Pencil Excitation with Interleaved Fourier Velocity Encoding: NMR Measurement of Aortic Distensibility, MRM 35:814-819 (1996), Hardy, et al.
A One-Dimensional Velocity Technique for NMR Measurement of Aortic Distensibility, MRM 31:513-520 (1994), Hardy, et al.

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