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Physikalisch-Technische Bundesanstalt (PTB) Bundesallee 100 38116 Braunschweig, Germany http://www.ptb.de
Contact Ms Erika Schow +49 531 5929314
Company logo of Physikalisch-Technische Bundesanstalt (PTB)
Physikalisch-Technische Bundesanstalt (PTB)

Dosismessung bei der Behandlung von Prostatakrebs

Neues PTB-Messsystem bietet die Möglichkeit, die Energiedosis in unmittelbarer Umgebung des bestrahlten Tumors zu messen

(PresseBox) (Braunschweig, )
Bei der Strahlentherapie versuchen die Ärzte, die Dosis im Tumor so hoch wie möglich zu halten, damit möglichst viele Krebszellen zerstört werden. Um zu vermeiden, dass dabei gesundes Gewebe geschädigt wird, ist es wichtig, die genaue Höhe der Dosis zu überprüfen. Die Physikalisch-Technische Bundesanstalt (PTB) hat dafür ein Messsystem entwickelt, bei dem die Aminosäure Alanin, deren Strahlungstransporteigenschaften denen menschlichen Gewebes ähneln, als Indikator verwendet wird. Bestrahlt man Alanin, dann entstehen freie Radikale, deren Konzentration mit Hilfe der Elektronen-Spin-Resonanz (ESR) gemessen wird. Daraus lässt sich die Energiedosis ableiten. Erste Untersuchungen an einem Phantom - und auch bereits an Patienten - haben vulsbme, yiol qvi Dpmghhd zcm dpmzoznrkgoy.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.