MR imaging with enhanced sensitivity of specific spin motion

Details MR imaging with enhanced sensitivity of specific spin motion MR imaging with enhanced sensitivity of specific spin motion

1998-04-09

1999-05-04

Lateef, Marvin M.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

324307, 324309, A61B 5055

Patent

active

058998586

ABSTRACT:
The alternating magnetic field gradient used to sensitize an NMR signal to spin motion is modulated in amplitude with a window function to tailor it to the particular NMR measurement. In an MR elastography measurement, the gradient is a sinusoidal waveform having a frequency the same as an applied oscillatory stress, and the window function desensitizes the measurement to spin motions at other frequencies.

REFERENCES:
patent: 5592085 (1997-01-01), Ehman
patent: 5825186 (1998-10-01), Ehman et al.

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