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Related Experiment Video

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A novel and simple method for identifying the lung intersegmental plane using thermography.

Kei Sakamoto1, Masato Kanzaki2, Shota Mitsuboshi1

  • 1Department of Surgery I, Tokyo Women's Medical University, Tokyo, Japan.

Interactive Cardiovascular and Thoracic Surgery
|April 1, 2016
PubMed
Summary

Thermography can visualize lung intersegmental planes by detecting temperature changes after vessel ligation. This novel technique offers a simpler, more reliable alternative for lung segmentectomy procedures.

Keywords:
Intersegmental planeSegmentectomySublobar resectionThermography

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Area of Science:

  • Thoracic Surgery
  • Medical Imaging
  • Surgical Navigation

Background:

  • Accurate identification of intersegmental planes is crucial for successful lung segmentectomy.
  • Current methods for visualizing these planes require specialized skills and carry risks.
  • There is a need for simpler, more reliable techniques to delineate intersegmental planes.

Purpose of the Study:

  • To investigate the feasibility of using thermography to identify intersegmental planes during lung resections.
  • To test the hypothesis that surface temperature changes can visualize these planes after vascular ligation.

Main Methods:

  • Performed six lung resections (two lobectomies, four segmentectomies) in pigs.
  • Utilized handheld thermography to monitor lung surface temperatures.
  • Observed temperature changes following ligation of target arteries and veins.

Main Results:

  • Thermal imaging clearly demarcated intersegmental planes in all procedures shortly after vessel ligation.
  • The observed temperature decrease correlated with blood flow suppression.
  • Thermography required no specialized skills, drug injection, or lung inflation.

Conclusions:

  • Thermography is a powerful and accessible tool for identifying intersegmental planes during anatomical lung segmentectomy.
  • This method offers a simpler and potentially safer alternative to existing techniques.
  • The findings suggest a promising role for thermal imaging in thoracic surgery.