Full echo spiral-in/spiral-out magnetic resonance imaging

Details Full echo spiral-in/spiral-out magnetic resonance imaging Full echo spiral-in/spiral-out magnetic resonance imaging

1995-08-04

1996-07-23

Tokar, Michael

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01V 300

Patent

active

055393136

ABSTRACT:
T.sub.2 -weighted interleaved spiral scanning is employed for imaging abdominal tumors. The gradients scan k-space in a spiral-in and spiral-out sequence with a first spiral starting at the edge of k-space and reaching the origin at signal echo time and then spiraling out to the edge of k-space preferably as a k-space conjugate of the inward spiral. A set of interleaves rotated through 180.degree. contains sufficient data to reconstruct an image. Rotating through a full 360.degree. provides additional insensitivity to T.sub.2 decay, inhomogeneity, and flow.

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