Time-clustered cardio-respiratory encoder and method for cluster

Details Time-clustered cardio-respiratory encoder and method for cluster Time-clustered cardio-respiratory encoder and method for cluster

1986-10-22

1989-08-08

Smith, Jerry

Boots, shoes, and leggings

324309, G01R 3320

Patent

active

048559105

ABSTRACT:
A method and encoding system for retrospectively clustering NMR cardiac measurement profiles in cardio-respiratory phase planes, which method and system reduce cardio-vascular and respiratory flow motion image artifacts and provide quantitative characterizations of cardiac structure/function both with and without imaging. Profiles are clustered which are in the same relative positions in the cardiac cycles during which they were acquired, rather than in accordance with their positions relative to trigger pulses defining initiation of each cardiac cycle. This avoids artifacts due to irregular variations in the period of successive cardiac cycles.

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patent: 4663591 (1987-05-01), Pelc et al.
patent: 4682109 (1987-07-01), Cuppen
Val M. Runge et al., "Respiratory Grating in Magnetic Resonance Imaging at 0.5 Tesla", 1984, pp. 521-523.
Wood and Henkelman Medical Physics, vol. 13, No. 6, Nov./Dec. 1986 "Suppression of Respiratory Motion Artifacts in Magnetic Resonance Imaging".

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