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

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


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 languageEnglish
Pages (from-to)1228-1234
Number of pages7
JournalJournal of Physics E: Scientific Instruments
Issue number10
Publication statusPublished - Oct 1987


  • condensed matter: electrical, magnetic and optical


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