Download Laser/Optoelektronik in der Medizin / Laser/Optoelectronics by K. Dinstl, A. Tuchmann (auth.), Dr. rer. nat. Wilhelm PDF

By K. Dinstl, A. Tuchmann (auth.), Dr. rer. nat. Wilhelm Waidelich, Dr. med. Raphaela Waidelich (eds.)

In den Bereichen Laser/Optoelektronik/Mikrowellen werden Forschungsergebnisse in rasantem pace in technische Entwicklungen und Anwendungen umgesetzt. Der seit 1973 alle 2 Jahre in München veranstaltete internationale Kongreß gibt, in Verbindung mit der bedeutendsten internationalen Fachmesse der Optoelektronik einen Überblick über den aktuellen Stand in Forschung, Technik und Medizin. In Fortsetzung dieser culture vermittelt der nine. Internationale Kongreß LASER 89 neue Erkenntnisse aus Grundlagenforschung, Entwicklung und praxisbezogener Anwendung. Zur Abdeckung des breiten Interessenspektrums von Forschern, Ingenieuren, Ärzten und Anwendern wurde der Kongreß in unterschiedliche Darbietungsebenen strukturiert. Die Vorträge, die sich mit medizinischen Anwendungen befassen, wurden in folgende Themengruppen gegliedert: Laser-Photobiologie/Laser-Photobiology; Photodynamische Therapie/PDT; Laserbiostimulation/Low strength Laser; Laser in der Chirurgie/Laser in surgical procedure; Laser in Angioplastie/Laser in Angioplasty; Laser in HNO/Laser in ENT; Laser in Zahn- und Kieferchirurgie/Laser in Oral and Dental surgical procedure; Physikalisch-Technische Grundlagen/Basic technological know-how; Laser in der Urologie/Laser in Urology; Laser-Lithotripsie/ Laser-Lithotripsy; Laser in der Gynäkologie/Laser in Gynecology; Laser in der Neurochirurgie/Laser in Neurosurgery; Laser in der Dermatologie/Laser in Dermatology; Laser in der Ophtalmologie/Laser in Ophtalmology.

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Additional info for Laser/Optoelektronik in der Medizin / Laser/Optoelectronics in Medicine: Vorträge des 9. Internationalen Kongresses / Proceedings of the 9th International Congress

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Material Sacrococcygeal teratoma l Ovary turoor 1 Spleen cyst l Wilm's tumor l Pancreatic pseudocyst2 WATT 35-40 60 75-80 95 60-80 Year/Month - / 4 11 /11 8/5 3/7 9 / 3 lbare fiber, 2focussing hand-piece The material used in this study and the laser treatment applied are summarized in table I. 20 abdominal tumors in children have been treated with the Nd:YAG laser (1064 nm) since 1987 (2). For light microscopy two commonly used histological methods were employed: Eosin/hematoxylin and azan (azocarmine, aniline blue, and orange G).

Nine of 13 patients with esophageal cancer and 5 of 7 patients with cardia of stomach cancer were relieved from dysphagia, and the endoscope was able to pass through the stenotic tumor very smoothly. The remaining 2 cases in bo~y and 1 case in antrum of stomach cancer was much improved resulti: 34 the complete disappearance of abdominal distention (Table 2). Three cases of cardia cancer of stomach with bleeding were stopped by electric and laser therapy and the size of their tumors was also reduced markedly.

8). Perforationen nach Lasertherapie waren nur im Duodenum zu beobachten. Dies durfte auf die unterschiedliche Wanddicke zuruckzufuhren sein. Auffalligerweise traten die Perforationen ausschlieBlich an der Bulbusvorderwand auf. Diese Haufung entspricht der verteilung der Blutungsquellen im Duodenum und konnte somit zufallig sein. Daruberhinaus durfte jedoch eine Rolle spielen, daB die Vorderwand des Bulbus endoskopisch leichter einstellbar ist als das ubrige Duodenum und der Einfallwinkel des Lasers deshalb hohe Energiedichten ermoglicht.

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