Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Christina Hirth"'
Autor:
Jens Frahm, Eben L. Kermit, David A. Benaron, David K. Stevenson, J. C. van Houten, Hellmuth Obrig, Andreas Kleinschmidt, Wai-Fung Cheong, Christina Hirth, David A. Boas, Arno Villringer, Susan R. Hintz
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism
Analysis of photon transit time for low-power light passing into the head, and through both skull and brain, of human subjects allowed for tomographic imaging of cerebral hemoglobin oxygenation based on photon diffusion theory. In healthy adults, ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e92e4069fe734a30b78e621dc4b7d0b3
https://pubmed.ncbi.nlm.nih.gov/10724111
https://pubmed.ncbi.nlm.nih.gov/10724111
Autor:
Christina Hirth, Lothar Schmitz, Konrad Brockmeier, Katrin Raff, Bruno Weber, Susanna Wiegand, Georg Bein
Publikováno v:
Journal of electrocardiology. 30(4)
Prolonged and/or fractionated depolarization due to tissue degeneration of the ventricular myocardium is a feature of cardiomyopathy. Signal averaged electrocardiography uses high-pass filters of the Butterworth type to quantify, noninvasively, fract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35dd42bf59cb6649eb62bbb568a5071f
https://pubmed.ncbi.nlm.nih.gov/9375905
https://pubmed.ncbi.nlm.nih.gov/9375905
Publikováno v:
Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II.
In the present study we evaluated a new 50 MHz single wavelength multi-source detector imaging system for noninvasive optical imaging of human brain function. The system is based on phase resolved technology and allows measurements in remission mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aec2a4be2ec508a5631b4f6ea40b7d15
https://doi.org/10.1117/12.280230
https://doi.org/10.1117/12.280230
Autor:
Arno Villringer, Christina Hirth, Johannes Bernarding, Kersten Villringer, Werner Mühlnickl, Ulrich Dirnagl, Andreas Thiel, Hellmuth Obrig
Publikováno v:
Advances in Experimental Medicine and Biology ISBN: 9781489900586
Neuronal activation is coupled to localised changes in regional cerebral blood flow, blood oxygenation and metabolism (Leninger-Follert et al. 1979, Frostig et al. 1990). On this basis it is possible to detect and localise activated brain areas by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abf8734ef8efcd5513720d619617b49d
https://doi.org/10.1007/978-1-4899-0056-2_15
https://doi.org/10.1007/978-1-4899-0056-2_15
Autor:
Rüdiger Wenzel, Arno Villringer, Christina Hirth, Ulrich Dirnagl, Tilo Wolf, Hellmuth Obrig, Claudia Döge, Jan G. Junge-Hülsing
Publikováno v:
Advances in Experimental Medicine and Biology ISBN: 9781461376897
The influence of different lengths of the pre-stimulation resting period on the magnitude of a hemodynamic response evoked by motor stimulation was examined in 10 subjects by means of near-infrared spectroscopy (NIRS). A motor stimulus was used which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0791f96ea7eb504bcfd4fe7a0b39d9f
https://doi.org/10.1007/978-1-4615-5865-1_60
https://doi.org/10.1007/978-1-4615-5865-1_60
Publikováno v:
Advances in Experimental Medicine and Biology ISBN: 9781461376897
During performance of a sequential finger opposition task we measured changes in regional cerebral blood oxygenation (rCBO) over the motor cortex and blood flow velocity changes (CBFV) in the middle cerebral artery in a combined near-infrared spectro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f04ac42b019eaac65f786be82401d4b
https://doi.org/10.1007/978-1-4615-5865-1_59
https://doi.org/10.1007/978-1-4615-5865-1_59
Autor:
Hellmuth Obrig, Claudia Döge, J. G. Junge-Hulsing, Christina Hirth, Arno Villringer, Ulrich Dirnagl, Tilo Wolf
Publikováno v:
Scopus-Elsevier
Journal of Applied Physiology
Journal of Applied Physiology
We studied cerebral hemodynamic response to a sequential motor task in 56 subjects to investigate the time course and distribution of blood oxygenation changes as monitored by near-infrared spectroscopy (NIRS). To address whether response is modulate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5c7c1a1b207a930dce27ac98db3f1f9
http://www.scopus.com/inward/record.url?eid=2-s2.0-0029759198&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0029759198&partnerID=MN8TOARS
Autor:
Andeas Thiel, Herta Flor, Werner Mühlnickel, Christina Hirth, Hellmuth Obrig, Johannes Bernarding, Arno Villringer, Ulrich Dirnagl, Kersten Villringer
Publikováno v:
Europe PubMed Central
Scopus-Elsevier
Scopus-Elsevier
We applied non-invasive multisite near-infrared spectroscopy (NIRS) to assess oxygenation changes during performance of a sequential finger opposition task in five healthy human adults. Oxygenation response was localized anatomically using three-dime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7ad4dd49a7b9783661c4e68ef3f3a20
http://europepmc.org/abstract/med/8905707
http://europepmc.org/abstract/med/8905707