Seminar: "Multi-contrast photoacoustic microscopy: listening to anatomy, function, metabolism, and biomarkers in vivo", Song Hu
Friday, March 23, 2012 11:00 AM to 12:00 PM
CREOL Room 102
Title: Multi-contrast photoacoustic microscopy: listening to anatomy, function, metabolism, and biomarkers in vivo
Presenter: Dr. Song Hu, Optical Imaging Laboratory, Department of Biomedical Engineering, Washington University in St. Louis
Photoacoustic microscopy (PAM), combining focused optical excitation and ultrasonic detection, enables in vivo multi-contrast characterization of biological tissues down to the cellular level. In PAM, light absorption by endogenous biomolecules or exogenous biomarkers thermoelastically induces a local pressure rise and launches an ultrasonic wave, which propagates through the tissue and is received by an acoustic detector to form an image. This talk will focus on anatomical, functional, metabolic, and molecular PAM at various in vivo sites, including the brain, skin, and eye. The broad applications of PAM in neurology, vascular biology, oncology, and dermatology will be highlighted.
Dr. Hu is a postdoctoral research associate in the Optical Imaging Laboratory at Washington University in St. Louis, where he received his Ph.D. in Biomedical Engineering in 2010. Prior to that, he received his B.S. and M.S. degrees in Electronic Engineering from Tsinghua University in 2002 and 2005, respectively. His research interest is to combine optics and ultrasound for in vivo anatomical, functional, metabolic, and molecular imaging at multiple spatial and temporal scales. His current research focuses on the technical development of photoacoustic microscopy for in vivo multi-contrast analysis of physiology and pathophysiology at the microscopic level.