1. Infrared imaging Eugen Kvasnak, PhD. Department of Medical Biophysics and Informatics 3rd Medical Faculty of Charles University

2. Herschel 1800 - thermal radiation of the sun IR radiation - longer wavelength than light - mostly heat effects - invisible, not ionizing near IR 0,8 – 25 μm - medical applications far IR25 μm – 1 mm – meteorology, astronomy

3. Transmission principle IR laser tomography Emission principle IR photography thermography liquid crystals thermovision - b&w - colour thermovision camera - digital IR imaging technique

4. Technical thermography : noktovision, meteorology Medical thermography – thermovision: Noninvasive detection of human body energy Recording of body surface distribution of temperatures no radiation X thermometry – point temperature recording

5. Planck’s law Wien law E = k.T 4 Physical principles of thermovision

6. IR detector – semiconductor InSb - cooling by liquid N 2 (-196 o C) Technical scheme of thermovision

7. Clinical aplication Inflamatory proceses – joints, soft tissues Phlebology – vein trombosis Vascular cancer Ischemy of the limbs … Sudeck syndrom Head zones

8. Thermoregulation isothermal areas 37 o 40 o C

10. Thank you for your attention!