Slice thickness and contiguity phantom for a magnetic resonance

Details Slice thickness and contiguity phantom for a magnetic resonance Slice thickness and contiguity phantom for a magnetic resonance

1986-02-06

1987-09-08

Levy, Stewart J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324300, G01R 3320

Patent

active

046927042

ABSTRACT:
A phantom for evaluating the operating performance of a magnetic resonance imaging scanner system includes a generally tubular body enclosed at its ends and containing a cylindrical stack of a plurality of leaves. Each leaf has one or more wedge-shaped slices or sectors cut out for identification and reference purposes. Leaves having one, two and four slices formed therein are arranged in a predetermined order in the stack with the slices in a predetermined helical pattern approximately eighteen degrees apart. The container is filled with a liquid and is inserted in the magnetic resonance imaging system to obtain images which can be evaluated to determine if the system is in calibration. A typical evaluation determines MRI slice thickness, slice location, and contiguity of the slices.

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patent: 2175058 (1939-10-01), Knapp
patent: 2983369 (1961-05-01), Rogovin
patent: 3549226 (1970-12-01), Samson
patent: 3555407 (1971-01-01), Bozanic et al.
patent: 3708946 (1973-01-01), Cahill
patent: 4549655 (1985-10-01), Forsythe, Jr. et al.

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