Imaging systems
Patent
·
OSTI ID:6143576
In an imaging apparatus using nuclear magnetic resonance, first and second gradient field pulses are applied, the second being of opposite sense to the first. It is preferable to match these so that they entirely cancel. However it is shown to be sufficient if they are as close as possible to the same magnitude and a further 'glitch' pulse is used to reduce the total gradient field over the pulse sequence substantially to zero.
- Assignee:
- EMI Ltd (United Kingdom)
- Patent Number(s):
- US 4284948
- OSTI ID:
- 6143576
- Resource Relation:
- Patent Priority Date: Priority date 25 May 1978, United Kingdom of Great Britain and Northern Ireland (UK)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
62 RADIOLOGY AND NUCLEAR MEDICINE
IMAGE SCANNERS
MEDICAL EXAMINATIONS
NUCLEAR MAGNETIC RESONANCE
PULSES
PULSE TECHNIQUES
DESIGN
IMAGES
MAGNETIC RESONANCE
RESONANCE
440300* - Miscellaneous Instruments- (-1989)
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62 RADIOLOGY AND NUCLEAR MEDICINE
IMAGE SCANNERS
MEDICAL EXAMINATIONS
NUCLEAR MAGNETIC RESONANCE
PULSES
PULSE TECHNIQUES
DESIGN
IMAGES
MAGNETIC RESONANCE
RESONANCE
440300* - Miscellaneous Instruments- (-1989)
550601 - Medicine- Unsealed Radionuclides in Diagnostics
550602 - Medicine- External Radiation in Diagnostics- (1980-)