Cancer surgery is evolving quickly as researchers around the globe develop new techniques. The Lebanese University has created a robotic manipulator that precisely positions a laser used in photodynamic therapy. The laser activates drugs given to the patient, causing these photosensitizer drugs to activate and destroy cancerous growths. Researchers in Lebanon use National Instrumentsí PCI-7334 to control the four stepper motors that move the laser head. Light must come from various angles to fully destroy the cancerous cells, so the head goes through many steps during the treatment.
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