抄録
Pulse laser beams from an excimer dye laser can be used for cancer diagnosis and treatment. 48 hours prior to diagnosis or treatment photosensitizers such as HpD or DHE are administered intravenously, and diagnosis is performed by examination of fluorescence from the lesion with 405 nm laser beam exposure. This is effective for localization of cancer. For treatment the lesion is exposed to a 630 nm laser beam and the PTD result in the deep sites in the tissue is expected due to the high light intensity of the excimer dye laser.
An optical parametric oscillator is another type of the pulse laser which is expected to be used for medical applications. It can tune wavelength in wide range in real time, and is also applicable for PDT use.
