Photon density measured over a cut surface: implications for optical mapping of the heart.
During optical mapping of the heart, the signal represents a weighted average of the transmembrane potential. Researchers sometimes illuminate the epicardium and record over a cut surface. My goal is to compare their signal to the photon density within an intact tissue. Does cutting the tissue affect the signal?
Roth
Bradley J
BJ
Department of Physics, Oakland University, Rochester, MI 48309, USA. roth@oakland.edu
D000465:Algorithms; D018780:Body Surface Potential Mapping / Q000379:methods*; D003198:Computer Simulation; D006321:Heart / Q000033:anatomy & histology* / Q000502:physiology*; D006801:Humans; D008027:Light; D008954:Models, Biological; D010783:Photometry / Q000379:methods*; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*