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Tehran University of Medical Sciences

Marjaneh Hejazi

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biomedical optics light in medicine biological tissue medical imaging

Summary

This presentation introduces biomedical optics, focusing on the interaction of light with biological tissues for imaging and treatment purposes. It explores why light is used in medicine, highlighting its advantages over other modalities. The presentation also dives into the nature of light and its interaction with matter.

Full Transcript

to Introduction Biomedical Optics PRESENTED BY MARJANEH HEJAZI FULL PROFESSOR OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES ? What is the aim of these session What is the biomedical optics Biomedical optics refers to the interaction of biological tissue and light.How can it exploited for imaging and tr...

to Introduction Biomedical Optics PRESENTED BY MARJANEH HEJAZI FULL PROFESSOR OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES ? What is the aim of these session What is the biomedical optics Biomedical optics refers to the interaction of biological tissue and light.How can it exploited for imaging and treatment Light referes to visible light and UV and NIR ?Why use light in medicine Compared to x-rays which pass through the body, CT.imaging and radiotherapy are possible However there are two facts that light a significant. advantage in some situation ?Why use light in medicine The electronic and vibrational energy levels of many biological.molecules are similar to photon energies in NIR visible and UV range A) provide detailed molecular information about the tissue B) Target selected molecules in the tissue to give rise useful physical.effects ?Why use light in medicine.Light can be controlled easily and to a very high degree Since the advante of lasers the duration of light pulses can be controlled from ❖ sub pico seconds to hours Focusing the peak poser per unit area can be increased to about fifteen orders ❖.of magnitude greater that sunlight Light can passed through optical fibers and allowing access to inaccessible ❖.regions What is light What is light

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