| Separation of arteries and veins in the cerebral cortex using physiological oscillations by optical imaging of intrinsic signal. | |
| | |
MedLine Citation:
|
PMID: 20615027 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
An automated method is presented for artery-vein separation in cerebral cortical images recorded with optical imaging of the intrinsic signal. The vessel-type separation method is based on the fact that the spectral distribution of intrinsic physiological oscillations varies from arterial regions to venous regions. In arterial regions, the spectral power is higher in the heartbeat frequency (HF), whereas in venous regions, the spectral power is higher in the respiration frequency (RF). The separation method was begun by extracting the vascular network and its centerline. Then the spectra of the optical intrinsic signals were estimated by the multitaper method. A standard F-test was performed on each discrete frequency point to test the statistical significance at the given level. Four periodic physiological oscillations were examined: HF, RF, and two other eigenfrequencies termed F1 and F2. The separation of arteries and veins was implemented with the fuzzy c-means clustering method and the region-growing approach by utilizing the spectral amplitudes and power-ratio values of the four eigenfrequencies on the vasculature. Subsequently, independent spectral distributions in the arteries, veins, and capillary bed were estimated for comparison, which showed that the spectral distributions of the intrinsic signals were very distinct between the arterial and venous regions. |
| | |
Authors:
|
Dewen Hu; Yucheng Wang; Yadong Liu; Ming Li; Fayi Liu |
Related Documents
:
|
15840477 - Quantitative study of nerves of the human left atrium. 16579197 - Sigmoid sinus thrombosis secondary to lemierre's syndrome. 1018387 - An emergency intravenous route for the pediatric patient. 18335417 - The clinical anatomy of the cephalic vein in the deltopectoral triangle. 8173037 - Cytology of bronchoalveolar lavage in some rare pulmonary disorders: pulmonary alveolar... 18568177 - Left subclavian vein occlusion after pacemaker insertion. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of biomedical optics Volume: 15 ISSN: 1560-2281 ISO Abbreviation: J Biomed Opt Publication Date: 2010 May-Jun |
Date Detail:
|
Created Date: 2010-07-09 Completed Date: 2010-10-29 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9605853 Medline TA: J Biomed Opt Country: United States |
Other Details:
|
Languages: eng Pagination: 036025 Citation Subset: IM |
Affiliation:
|
National University of Defense Technology, College of Mechatronics and Automation, Department of Automatic Control, Changsha, Hunan 410073, China. dwhu@nudt.edu.cn |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Algorithms Animals Arteries / anatomy & histology Cerebral Cortex / blood supply* Cerebrovascular Circulation / physiology* Cluster Analysis Diagnostic Imaging / instrumentation, methods* Fundus Oculi Fuzzy Logic Image Processing, Computer-Assisted Male Optics and Photonics / instrumentation, methods* Pattern Recognition, Automated Rats Rats, Sprague-Dawley Veins / anatomy & histology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Volumetric in vivo imaging of intracochlear microstructures in mice by high-speed spectral domain op...
Next Document: Inspired gas-induced vascular change in tumors with magnetic-resonance-guided near-infrared imaging:...