Method for detecting cancer on skin of humans and mammals...

A - Human Necessities – 61 – B

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A61B 6/00 (2006.01) A61K 49/00 (2006.01) G01N 21/64 (2006.01) G01J 3/28 (2006.01)

Patent

CA 2263125

The invention relates to a method for detecting cancer on skin of humans and mammals by picturing spectroscopy. The method includes that delta aminolevulinic acid ALA is applied on the skin on that area where cancer is suspected to be present, the substance is removed after 1 to 24 hours, and the area is illumiated with light having a wave-length of 330-440 nm and the fluorescent irradiation which arises is registered and evaluated, which radiation has a wave-length 610-715 nm. The invention also includes an arrangement for performing the method.

La présente invention concerne une technique de détection de la peau chez les humains et les mammifères par imagerie spectroscopique. Cette technique consiste à appliquer de l'acide .delta. aminolévulique (ALA) sur la peau dans la zone où l'on soupçonne la présence de cancer. La technique consiste ensuite à retirer cette substance après une période comprise entre 1 heure et 24 heures. La technique consiste alors à éclairer la zone avec une lumière dont la longueur d'ondes est comprise entre 330 nm et 440 nm, puis à enregistrer le rayonnement de fluorescence qui s'en dégage, et enfin à évaluer celui du rayonnement qui se situe dans la longueur d'ondes comprise entre 610 nm et 715 nm. L'invention concerne également un dispositif permettant de mettre en oeuvre cette technique.

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