Electromagnetic coil system for examination of large objects by nuclear magnetic resonance and whole-body imaging machine using a system
US4398148A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1981 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Feb 2, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34053
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a system for obtaining images on the principle of nuclear magnetic resonance (NMR) of nuclei contained in the human body, two symmetrical coils constituting an electromagnet are spaced apart so that a patient's body can be placed transversely with respect to the axis of revolution of the electromagnet. A set of NMR coils for producing a high-frequency magnetic field at right angles to the field of the electromagnet comprises at least one solenoid coil placed around the part of the body to be examined. This novel configuration achieves enhanced sensitivity and reduces exposure times by a factor greater than 2 with respect to conventional saddle-type NMR coil systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.