Functional MR Imaging at 1.5 T
| Autor: | Lars Søndergaard, Egill Rostrup, Freddy Ståhlberg, M. Stubgaard, Anders Stensgaard, Otto M. Henriksen, Carsten Thomsen, Peter B. Toft, H.B.W. Larsson, P. Ring |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
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 |
| Zdroj: | Europe PubMed Central Capital Region of Denmark |
| ISSN: | 1600-0455 0284-1851 |
| DOI: | 10.1080/02841859309173246 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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