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1. WO2008004952 - MOYENS DE RÉFÉRENCE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

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Claims:

1. A reference means (1 ) comprising at least one reference marker (4) which is applicable temporarily or permanently in a patient's body at a specified location relative to a tumor in the body in order thereafter, by means of the reference marker (4), to enable precision aiming of a treatment beam at the tumor,
characterized in
that the reference marker (4) is so configured that it is displayable by both magnetic resonance tomography (MRT) and X-raying, preferably computer tomography (CT) in order to determine by MRT and/or X-raying, preferably CT, the location of the reference marker (4) relative to the tumor for subsequent precision aiming of the treatment beam, and
that the reference marker (4) is applicable, as desired, either temporarily in the body via a catheter (2) which forms part of the reference means (1) or permanently in the body via an insertion means (11) in the form of a catheter.
2. A reference means (1) according to claim 1 , characterized in that the reference marker (4) takes the form of an element delineating at least one space and made of tissue-compatible plastic or similar material which emits signals in response neither to MT nor to X-raying, preferably CT, and of liquid and/or powder disposed in said space and made of material which emits signals in response to both MRT and X-raying, preferably CT.
3. A reference means (1) according to claim 2, characterized in that said space is divided into at least one first portion (4a) with material which emits signals in response to MRT and at least one second portion (4b) with material which emits signals in response to X-raying, preferably CT.
4. A reference means (1) according to claim 1 , characterized in that the reference marker (4) takes the form of an element made of tissue-compatible metal, metal alloy, composite material, some other chemical compound or similar material which emits signals in response to both MRT and X-raying, preferably CT.
5. A reference means (1) according to claim 4, characterized in that said element (4) comprises at least one first portion (4a) made of tissue-compatible material which emits signals in response to MRT and at least one second portion (4b) made of tissue-compatible material which emits signals in response to X-raying, preferably CT.
6. A reference means (1 ) according to claim 4 or 5, characterized in that said element (4) comprises at least one core (4a) made of material which emits signals in response to MRT and an outer layer (4b) made of tissue-compatible material which emits signals in response to X-raying, preferably CT.
7. A reference means (1) according to any of claims 1 to 6, characterized in that the reference means (1) comprises a plurality of reference markers (4) which are applicable, as desired, either temporarily or permanently in the body at chosen distances from one another.