Marker for magnetic resonance imaging

Details Marker for magnetic resonance imaging Marker for magnetic resonance imaging

1996-07-18

1998-04-07

Lateef, Marvin M.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

324307, 324309, 600420, A61B 5055

Patent

active

057357951

ABSTRACT:
A marker and probe for use in magnetic resonance imaging includes a vial for insertion within the body. The vial contains a material having a spin-lattice relaxation time less than that of the material of the body in a region being imaged. A coil arrangement having at least one coil tuned to the frequency of the magnetic resonance excited in the material during an excitation sequence is wound around the vial. The body is subjected to an T1 weighted examination sequence. The coil arrangement preferably has at least one turn which lies in a plane orthogonal to at least one other turn. Materials suitable for use in the vial include copper sulphate, iron chloride, or gadoliuium cholate. The vial consists of a material which does not exhibit a nuclear magnetic resonance spectrum.

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patent: 5437277 (1995-08-01), Dumoulin et al.
patent: 5456718 (1995-10-01), Szymaitis

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