Photodynamic therapy for cancer: Principles, Pulsus Group Inc
CANADIAN JOURNAL OF GASTROENTEROLOGY & HEPATOLOGY
The Canadian Association of Gastroenterology (CAG) Canadian Association for the Study of the Liver (CASL)

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Review June 2002, Volume 16 Issue 6: 393-396
 

Photodynamic therapy for cancer: Principles

BC Wilson

The principles of photodynamic therapy (PDT), using drugs (photosensitizers) that are activated by light to become cytotoxic, provide the basis for understanding the current and potential future clinical applications in gastroenterology, general oncology and other specialities. The properties of photosensitizers are key to their biological efficacy, while lasers and optical fibres allow convenient and flexible light delivery for endoscopic use. PDT has several distinct and unique advantages, both as a stand-alone treatment and in combination with other established modalities. The current limitations are also recognized, as is the need for rigorous randomized trials of this emerging technology. The fluorescence of many photosensitizers may be useful, either for (endoscopic) diagnosis or for PDT treatment guidance and monitoring.

Cancer | Fluorescence | Laser | Optical fibre | Photodynamic therapy | Photosensitizer
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