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Functional MR Imaging at 1.5 T
- Source :
- Europe PubMed Central, Capital Region of Denmark
- Publication Year :
- 1993
- Publisher :
- SAGE Publications, 1993.
-
Abstract
- A preliminary investigation of the effects of stimulation of the visual and the motor cortex was made on a conventional 1.5 T MR imaging scanner. Both types of activation gave a detectable change in the signal between rest and stimulation using a gradient echo sequence with an echo time of 60 ms. The observed effects were assumed to be caused by variation in the amount of paramagnetic deoxyhemoglobin between stimulation and rest due to local increase of capillary blood flow in the human brain during stimulation.
- Subjects :
- Stimulation
030218 nuclear medicine & medical imaging
Microcirculation
03 medical and health sciences
0302 clinical medicine
Nuclear magnetic resonance
Physical Stimulation
medicine
Humans
Functional mr
Radiology, Nuclear Medicine and imaging
Visual Cortex
Radiological and Ultrasound Technology
business.industry
Motor Cortex
Brain
Human brain
Blood flow
General Medicine
Magnetic Resonance Imaging
Mr imaging
medicine.anatomical_structure
030220 oncology & carcinogenesis
business
Photic Stimulation
Gradient echo
Motor cortex
Subjects
Details
- ISSN :
- 16000455 and 02841851
- Volume :
- 34
- Database :
- OpenAIRE
- Journal :
- Acta Radiologica
- Accession number :
- edsair.doi.dedup.....039d6cc2f892a2b193dfec63b592ebaa