Spectral analysis of near-infrared spectroscopy signals measured from prefrontal lobe in subjects at risk for stroke

• Published in: Medical physics (Lancaster) Vol. 39; no. 4; pp. 2179 - 2185
• Main Authors: Li, Zengyong, Zhang, Ming, Xin, Qing, Chen, Guoqiang, Liu, Feifei, Li, Jianping
• Format: Journal Article
• Language: English
• Published: United States American Association of Physicists in Medicine 01.04.2012
• Subjects: Algorithms; arterial stiffness; biomechanics; biomedical optical imaging; blood vessels; brain; cerebral oxygenation; Diagnosis, Computer-Assisted - methods; Digital computing or data processing equipment or methods, specially adapted for specific applications; diseases; elastic constants; Elastic properties; Female; Haemodynamics; Heart; Hemoglobins - analysis; Humans; Infrared; Infrared spectrometers, auxiliary equipment, and techniques; infrared spectroscopy; Male; medical signal processing; Middle Aged; Muscles; near-infrared spectroscopy; Optical imaging of neuronal activity; oscillations; Oscillations and resonance; Prefrontal Cortex - metabolism; Reproducibility of Results; Risk Assessment; Risk Factors; Sensitivity and Specificity; spectral analysis; Spectrometry; Spectrophotometry; Monochromators; Measuring colours; Spectroscopy, Near-Infrared - methods; Spectrum analysis; spontaneous oscillation; Stroke; Stroke - blood; Stroke - diagnosis; Tissues; Vascular system; Velocity measurement; wavelet transform; wavelet transforms; Wavelets; arterial stiffness; near-infrared spectroscopy; spontaneous oscillation; wavelet transform; cerebral oxygenation

Purpose: The objective of this study was to assess the spontaneous cerebral oscillations based on the wavelet transform of near-infrared spectroscopy (NIRS) signals in subjects at risk for atherosclerotic stroke. Methods: A total of 32 subjects were recruited from the university to participate in th...