Contact thermography

Contact Thermography

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Contact thermography is a medical imaging technique used to detect breast cancer and other conditions by measuring the temperature variations on the surface of the skin. This method involves the use of a special liquid crystal plate that changes color in response to different temperatures, providing a visual map of temperature distribution.

History

Contact thermography was developed as a non-invasive diagnostic tool to aid in the early detection of breast cancer. It gained popularity in the 1970s and 1980s as an adjunct to mammography.

Principle

The principle behind contact thermography is based on the fact that cancerous tissues often have a higher metabolic rate than normal tissues, leading to increased blood flow and higher temperatures. By detecting these temperature differences, contact thermography can help identify areas of concern that may require further investigation.

Procedure

During a contact thermography examination, a liquid crystal plate is placed in contact with the skin. The plate is sensitive to temperature changes and displays a color pattern that corresponds to the temperature distribution of the underlying tissues. The resulting thermogram is then analyzed for abnormal patterns that may indicate the presence of tumors or other abnormalities.

Applications

While primarily used for breast cancer screening, contact thermography has also been explored for other applications, such as detecting thyroid disorders, vascular diseases, and musculoskeletal injuries.

Advantages

• Non-invasive and painless
• No exposure to ionizing radiation
• Can be used as an adjunct to other diagnostic methods

Limitations

• Lower sensitivity and specificity compared to other imaging modalities like mammography and ultrasound
• Interpretation of thermograms can be subjective and requires expertise

Current Status

The use of contact thermography has declined with the advent of more advanced imaging techniques. However, it remains a topic of interest in research and is occasionally used in conjunction with other diagnostic tools.

See also

• Thermography
• Breast cancer screening
• Medical imaging

External links

• Contact Thermography Overview