Influence of stimulus frequency, amplitude and blood pressure on signal change in fMRI;Einfluss von reizfrequenz, reizamplitude und blutdruck auf die signalantwort in der funktionellen MRT: Untersuchungen am tiermodell

RoFo Fortschritte auf dem Gebiete der Rontgenstrahlen und der Neuen Bildgebenden Verfahren

Volumn 170, Issue 3, 1999, Pages 304-309

  Hempel, E ^a   Reith, W ^a   Elste, V ^a   Heiland, S ^a   Sartor, K ^a  

^a UNIVERSITY HOSPITAL HEIDELBERG   (Germany)

Author keywords

Animals; Blood pressure; Functional magnetic resonance imaging; Stimulation amplitude; Stimulation frequency

Indexed keywords

ANIMAL EXPERIMENT; ARTICLE; AUTOREGULATION; BLOOD PRESSURE; CONTROLLED STUDY; NERVE CELL; NONHUMAN; NUCLEAR MAGNETIC RESONANCE IMAGING; PRIORITY JOURNAL; RAT; SOMATOSENSORY CORTEX; SOMATOSENSORY STIMULATION;

ANIMALS; BLOOD PRESSURE; BRAIN; ELECTRIC STIMULATION; ELECTRODES; FOURIER ANALYSIS; MAGNETIC RESONANCE IMAGING; MALE; RATS; RATS, WISTAR; SIGNAL PROCESSING, COMPUTER-ASSISTED;

EID: 0032936641     PISSN: 09366652     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (29)

1. Ogawa S, Lee TM, Kay AR, Tank DW: Brain magnetic resonance imaging with contrast dependent on blood oxygenation. Proc Natl Acad Sci 1990; 87: 9868-9872
2. Belliveau JW, Kennedy DN, Mc Kinstry RC, Buchbinder BR, Weisskoff RM, Cohen MS, Vevea JM, Brady TJ, Rosen BR: Functional mapping of the human visual cortex by magnetic resonance imaging. Science 1991; 254: 716-719
3. Bock C, Schmitz B, Kerskens CM, Gyngell ML, Hossmann KA, Hoehn Berlage M: Functional MRI of somatosensory activation in rat: effect of hypercapnic up-regulation on perfusion- and BOLD-imaging. Magn Reson Med 1998; 39: 457-461
4. Gyngell ML, Bock C, Schmitz B, Hoehn Berlage M, Hossmann KA: Variation of functional MRI in response to frequency of somatosensory stimulation in alpha-chloralose anesthetized rats. Magn Reson Med 1996; 36: 13-15
5. Bandetti PA, Jesmanowicz A, Wong EC, Hyde JS: Processing strategies for time course data sets in functional MRI of the human brain. Magn Reson Med 1993; 30: 161-173
6. Ueki M, Linn F, Hossmann KA: Functional activation of zerebral blood flow and metabolism before and after global ischemia of rat brain. J Cereb Blood Flow Metab 1988; 8: 486-494
7. Ueki M, Mies G, Hossmann KA: Effect of alpha-chloralose, halothane, pentobarbital and nitrous oxide anesthesia on metabolic coupling in somatosensory cortex of rat. Acta Anaesth Scand 1992; 36: 318-322
8. Hyder F, Behar KL, Marthin MA, Blamire AM, Shulman RG: Dynamic magnetic resonance imaging of the rat brain during forepaw stimulation. J Cereb Blood Flow Metab 1994; 14: 649-655
9. Puce A, Allison T, Gore JC, Mc Carthy G: Face-sensitive regions in human extrastriate cortex studied by functional MRI. J Neurophysiol 1995; 74: 1192-1199
10. Hammeke TA, Yetkin FZ, Mueller WM, Morris GL, Haughton VM, Rao SM, Binder JR: Functional magnetic resonance imaging of somatosensory stimulation. Neurosurgery 1994; 35: 677-681
11. Baudendistel K, Schad LR, Wenz F, Essig M, Schröder J, Jahn T, Knopp MV, Lorenz WJ: Monitoring of task performance during functional magnetic resonance imaging of sensorimotor cortex at 1,5T. Magn Reson Imag 1996; 14: 51-58
12. Dettmers C, Conelly A, Stephan KM, Turner R, Friston KJ, Frakkowiak RS, Gadian DG: Quantitative comparison of functional magnetic resonance imaging with positron emission tomography using a force-related paradigm. Neurolmage 1996; 4: 201-209
13. Detre JA, Sirven JI, Alsop DC, O'Connor MJ, French JA: Localization of subkortical ictal activity by functional magnetic resonance imaging: correlation with invasive monitoring. Ann Neurol 1995; 38: 618-624
14. Hayes CE, Edelstein WA, Schenk JF, Mueller OM, Eash M: An efficient, highly homogenous radiofrquency coil for wholebody-NMR imaging at 1.5T. J Magn Reson 1985; 30: 107-114
15. Fitzsimmons JR, Beck BL, Brooker HR: Double resonant quadrature birdcage. Magn Reson Med 1993; 30: 107-114
16. Metzner R, Baudendistel K, Essig M, Schröder J, Schad LR, Knopp MV: Neurofunktionelle MRT zur Erfassung kortikaler Aktivierungsgrade bei kontrollierter Stimulation. Röntgenkongreß: Abstracts Stuttgart. Thieme 1998: VO 107
17. Villringer K, Kurth R, Repenthin J, Stoll T, Curio G, Villringer A, Wolf KJ: Somatotopie im primären somatosensorischen Cortex: eine fMRI-Studie. Röntgenkongreß: Abstracts Stuttgart. Thieme 1998: VO 231
18. Barth M, Moser E: Proton NMR relaxation times of human blood samples at 1.5T and implications for functional MRI. Cellular and Molecular Biology (Noisy-le-Grand) 1997; 43: 783-791
19. Buckner RL, Koutstaal W, Schacter DL, Dale AM, Rotte M, Rosen BR: Functional-anatomic study of episodic retrieval. II. Selective averaging of event-related fMRI trials to test the retrieval success hypothesis. Neurolmage 1998; 7(3): 163-175
20. Haacke EM, Lai S, Yablonskiy DA, Lin W: In vivo validation of the bold mechanism: a review of signal changes in gradient echo functional MRI in the presence of flow. Int J Imag Sys Technol 1995; 6: 153-163
21. Lai S, Haacke EM, Reichenbach JR, Kuppusamy K, Hoogenraad FCG, Takeichi H, Lin W: In vivo quantification of brain activationinduced change in cerebral blood oxygen saturation using MRI. Proc Int Soc Magn Reson Med 1996; 3: 47-56
22. Meyer ME, Yu O, Eclancher B, Grucker D, Chambron J: NMR relaxation rates and blood oxygenation level. Magn Reson Med 1993; 30: 380-386
23. Kim SG, Hendrich KHuX, Merkle H, Ugurbil K: Potential pitfalls of functional MRI using conventional gradient-recalled echo techniques. NMR Biomed 1994; 7: 69-74
24. Wenz F, Baudendistel K, Wildermuth S, Heß T, Egelhof T, Forsting M, Schad LR, Knopp MV: Quantifizierung der hemisphärischen Asymmetrie bei Fingerbewegung mit der funktionellen Magnetresonanztomographie. Klin Neuroradiol 1995; 5: 53-60
25. Golay X, Kollias S, Stoll G, Meier D, Valavanis A, Boesiger P: A new correlation-based fuzzy logic clustering algorithm for fMRI. Magn Reson Med 1995; 40: 249-260
26. Schmidt RF, Thews G (Hrsg.): Physiologie des Menschen. Heidelberg. Springer 1995: 553-554
27. Vogel J, Kuschinsky W: Decreased heterogeneity of capillary plasma flow in rat whisker-barrel cortex during functional hyperemia. J Cereb Blood Flow Metab 1996; 16: 1300-1306
28. Christopher GT, Menon RS: Amplitude and stimulus presentation frequency response of human primary visual cortex using BOLD EPl at 4T. Magn Reson Imag 1998; 40: 203-209
29. Paxinos G, Watson C (Hrsg.): The rat brain in stereotaxic coordinates. London. Academic Press Limited 1986: 25-28