A low field NMR imager for clinical use

Thomas William Redpath; James McDonald Strachan Hutchison; L M  EASTWOOD; R.d. Selbie; G Johnson; R A  Jones; J R  MALLARD

doi:10.1088/0022-3735/20/10/017

A low field NMR imager for clinical use

Thomas William Redpath, James McDonald Strachan Hutchison, L M EASTWOOD, R.d. Selbie, G Johnson, R A Jones, J R MALLARD

Applied Medicine

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The essential design features of a vertical field 0.08 T, 3.4 MHz NMR proton imager are described. The machine was constructed in-house following successful clinical trials with a prototype 1.7 MHz imager. Based on a four-coil air-cored resistive electromagnet, the machine acquires single-slice 128*128 pixel images in about 4 min using an interleaved saturation recovery, inversion recovery sequence, where spin echoes are formed by gradient reversal. The image formation technique is spin warp. Since its installation in the Aberdeen Royal Infirmary in early 1983, over 4000 patients have have scanned. Images are presented to illustrate its performance.

Original language	English
Pages (from-to)	1228-1234
Number of pages	7
Journal	Journal of Physics E: Scientific Instruments
Volume	20
Issue number	10
DOIs	https://doi.org/10.1088/0022-3735/20/10/017
Publication status	Published - Oct 1987

Keywords

condensed matter: electrical, magnetic and optical

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10.1088/0022-3735/20/10/017

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AU - Redpath, Thomas William

AU - Hutchison, James McDonald Strachan

AU - EASTWOOD, L M

AU - Selbie, R.d.

AU - Johnson, G

AU - Jones, R A

AU - MALLARD, J R

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AB - The essential design features of a vertical field 0.08 T, 3.4 MHz NMR proton imager are described. The machine was constructed in-house following successful clinical trials with a prototype 1.7 MHz imager. Based on a four-coil air-cored resistive electromagnet, the machine acquires single-slice 128*128 pixel images in about 4 min using an interleaved saturation recovery, inversion recovery sequence, where spin echoes are formed by gradient reversal. The image formation technique is spin warp. Since its installation in the Aberdeen Royal Infirmary in early 1983, over 4000 patients have have scanned. Images are presented to illustrate its performance.

KW - condensed matter: electrical, magnetic and optical

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JO - Journal of Physics E: Scientific Instruments

JF - Journal of Physics E: Scientific Instruments

SN - 0022-3735

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ER -

A low field NMR imager for clinical use

Abstract

Keywords

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