Variable ECG delay in fast pulse sequence scans

Details Variable ECG delay in fast pulse sequence scans Variable ECG delay in fast pulse sequence scans

1992-06-23

1993-10-12

Smith, Ruth S.

Surgery

Truss

Pad

128708, A61B 5055

Patent

active

052516288

ABSTRACT:
An NMR system performs a pulmonary vascular scan comprised of a series of slice acquisition. Each slice acquisition employs a series of fast pulse sequences (GRASS) which are completed in one cardiac cycle. The view order of each slice acquisition is altered such that the low order views are acquired at a desired contrast delay interval after receipt of a cardiac trigger signal.

REFERENCES:
patent: 4710717 (1987-12-01), Pelc et al.
patent: 4968935 (1990-11-01), Ehman et al.
patent: 4986272 (1991-01-01), Riederer et al.
The Importance of Phase-Encoding Order in Ultra-Short TR Snapshot MR Imaging, Holsinger, et al., Magnetic Resonance in Medicine, 16, 418-488 (1990).
Comparing the FAISE Method with Conventional Dual-Echo Sequences.sup.1, Melki et al., JMRI pp. 319-326, May/Jun. 1991.

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