RATIONALE AND OBJECTIVE: Pneumothorax (Ptx) is a life-threatening complication that can result from trauma, mechanical ventilation, and invasive procedures. Infrared thermography (IRT), a compact and portable technology, has become highly sensitive. We hypothesized that IRT could detect Ptx by identifying associated changes in skin temperature. MATERIALS AND METHODS: Bilateral nonpenetrating chest incisions or needle punctures were performed in 21 anesthetized rats. Rats were then randomized to no, bilateral, left, or right Ptx by either open (n = 16) or closed percutaneous (n = 5) puncture through selected pleurae. Real-time thermographic images and surface temperature data were acquired with a noncooled infrared camera. RESULTS: In all cases, blinded observers correctly identified each Ptx with real-time grayscale image analysis. When compared to either the ipsilateral baseline or an abdominal reference, experimental Ptx produced a significantly greater decrease in surface temperature when compared to non-Ptx control. CONCLUSIONS: These results demonstrate that portable infrared imaging can rapidly and accurately detect changes in thoracic surface temperature associated with experimental pneumothorax.
RATIONALE AND OBJECTIVE: Pneumothorax (Ptx) is a life-threatening complication that can result from trauma, mechanical ventilation, and invasive procedures. Infrared thermography (IRT), a compact and portable technology, has become highly sensitive. We hypothesized that IRT could detect Ptx by identifying associated changes in skin temperature. MATERIALS AND METHODS: Bilateral nonpenetrating chest incisions or needle punctures were performed in 21 anesthetized rats. Rats were then randomized to no, bilateral, left, or right Ptx by either open (n = 16) or closed percutaneous (n = 5) puncture through selected pleurae. Real-time thermographic images and surface temperature data were acquired with a noncooled infrared camera. RESULTS: In all cases, blinded observers correctly identified each Ptx with real-time grayscale image analysis. When compared to either the ipsilateral baseline or an abdominal reference, experimental Ptx produced a significantly greater decrease in surface temperature when compared to non-Ptx control. CONCLUSIONS: These results demonstrate that portable infrared imaging can rapidly and accurately detect changes in thoracic surface temperature associated with experimental pneumothorax.
Authors: Surya C Gnyawali; Yicho Chen; Feng Wu; Kenneth E Bartels; James P Wicksted; Hong Liu; Chandan K Sen; Wei R Chen Journal: Med Biol Eng Comput Date: 2007-09-22 Impact factor: 2.602
Authors: Anne Menzel; Martin Beyerbach; Carsten Siewert; Melanie Gundlach; Doris Hoeltig; Robert Graage; Hermann Seifert; Karl-Heinz Waldmann; Jutta Verspohl; Isabel Hennig-Pauka Journal: BMC Vet Res Date: 2014-09-16 Impact factor: 2.741
Authors: Adir Sommer; Noy Mark; Gavriel D Kohlberg; Rafi Gerasi; Linn Wagnert Avraham; Ruth Fan-Marko; Arik Eisenkraft; Dean Nachman Journal: Mil Med Res Date: 2021-04-25