Abstract:
A medical apparatus for effecting radiation treatment on a pre-selected anatomical portion of an animal body is disclosed. The medical apparatus may include a plurality of treatment channels configured to be positioned adjacent a body tissue and a plurality of delivery channels coupled to a corresponding number of treatment channels. The medical apparatus may also include a plurality of source channels configured to receive one or more energy sources, a tracking channel configured to receive a tracking element, and a connecting element configured to connect each delivery channel with either one of the plurality of sources channels or the tracking channel.
Abstract:
An apparatus for the representation of an area on the three-dimensional surface of a patient's body, with a control device which provides three-dimensional coordinates of at least one area to be represented on the surface of the patient's body, wherein the area pre-sets a desired intersection area of a radiation area on the surface of the patient's body, characterized in that at least one projection device featuring a laser is provided, by which the desired intersection area can be projected to the three-dimensional surface of the patient's body on the basis of the provided coordinates, while at least one laser beam generated by the laser can be guided along the contour of the desired intersection area sufficiently rapidly, so that the impression of a closed contour around the desired intersection area results.
Abstract:
An apparatus for the representation of an area on the three-dimensional surface of a patient's body, with a control device which provides three-dimensional coordinates of at least one area to be represented on the surface of the patient's body, wherein the area pre-sets a desired intersection area of a radiation area on the surface of the patient's body, characterised in that at least one projection device featuring a laser is provided, by which the desired intersection area can be projected to the three-dimensional surface of the patient's body on the basis of the provided coordinates, while at least one laser beam generated by the laser can be guided along the contour of the desired intersection area sufficiently rapidly, so that the impression of a closed contour around the desired intersection area results.
Abstract:
A device for radiation treatment of proliferative tissue surrounding a cavity in an animal body includes at least a first inflatable chamber having a wall for placement in the cavity, a supportive probe having an elongated body with a distal end connected with the first inflatable chamber and a proximal end remaining outside the cavity, a device for inflating and deflating the first chamber, and a radiation delivering device for placing at least one energy emitting source within the cavity for performing said radiation treatment. It is possible to temporarily position a solid energy emitting source in a reproducible manner at different locations within the inflated chamber, such that subsequent identical radiation treatment sessions can be performed, whereas the comfort of the patient is maxim and an out hospitalization treatment is possible.
Abstract:
The invention relates to a process for brachytherapy by using a dose measuring system, wherein, in at least one point of an area subjected to radiation treatment, the individual radiation dose contribution from at least one dwell position of at least one radiation source is measured in real time, the thus obtained measured dose value is compared with the corresponding value calculated by a treatment planning system, and the further course of the treatment is adapted on the basis of the degree of agreement between the measured value and the calculated value. Furthermore, the invention relates to a control program, a treatment control system, a treatment planning system and a dose measuring system.
Abstract:
A miniature X-ray source device connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation thereby. The X-ray source device at least includes a vacuum tube containing a cathode and an anode spaced apart at a distance from each other; an emitter for emitting free electrons from the cathode; an electric field generator for applying a high-voltage electric field between the cathode and the anode for accelerating the emitted free electrons towards the anode; and a getter material located in a high-voltage electric field free region in the vacuum tube. The vacuum tube is at least partly transparent to X-ray radiation emitted by the anode.
Abstract:
The invention relates to a device for radiation treatment of proliferative tissue surrounding a cavity in an animal body comprising radiation delivering means for placing at least one energy emitting source at a desired position within said cavity for performing said radiation treatment. The invention also relates to an implant element to be implanted into a cavity in an animal body for radiation treatment of proliferative tissue surrounding said cavity. The invention aims to provide a device and method for radiation treatment of proliferative tissue surrounding a cavity in an animal body, wherein the radiation treatment is performed in a far more accurate and reproducible manner and wherein the device causes far less discomfort to the patient. According to the invention said device comprises an permanent implant element suitable for placement in said body cavity, said element being made from a non-deformable material and having an outer surface being conformal to the inner surface of said body cavity.
Abstract:
The invention relates to a device for implanting at least one row of X radioactive seeds and Y non-radioactive spacers with Xε[1, 2, . . . ] and Yε[0, 1, . . . ] in a desired configuration to a desired location in an animal body for effecting radiation therapy of cancerous tissue in said body, said device comprising: at least one elongated hollow needle with an open distal end to be inserted towards said desired location in the body and with a proximal end to be connected to a seed loading apparatus; and at least one pushing element for implanting during retraction of the elongated hollow needle said row of radioactive seeds and non-radioactive spacers from said seed loading apparatus through said hollow needle towards said location. The prior art rows of seeds/spacers have the disadvantage, that after insertion into the body or near to the tissue to be irradiated no physical relation between the inserted seeds and spacers exists other than through the tissue of the body, thus affecting the radiation treatment to be performed. Therefore in order to avoid mutual displacement of the seeds/spacers after insertion of the row into the body due to movements of the patient the device according to the invention further comprises at least one tube-shaped element with at least one open end to be inserted through said hollow needle towards said desired location; and at least one tube-shaped sleeve member with an open distal and open proximal end for inserting said tube-shaped element through said hollow needle towards said desired location, wherein said tube-shaped element serves to accommodate said row of radioactive seeds and non-radioactive spacers.
Abstract:
The invention relates to a real time radiation treatment planning system for use in effecting radiation therapy of a pre-selected anatomical portion of an animal body using hollow needles. According to embodiments of the invention, the system may include a processing means processing means-configured to perform a three-dimensional imaging algorithm and a three-dimensional image segmentation algorithm, with respect to one or more specific organs within the pre-selected anatomical portion and with respect to the needles, for converting the image data obtained with an imaging means into a three-dimensional image of the anatomical portion, using at least one single or multi-objective anatomy-based genetic optimization algorithm. For pre-planning or virtual simulation purposes, the processing means is arranged to determine in real time the optimal number and position of at least one of the needles, positions of energy emitting sources within the needles, and the dwell times of the energy emitting sources at the positions. For post-planning purposes, the processing means is arranged to determine, based on three-dimensional image information, in real time the real needle positions and the dwell times of the energy emitting sources for the positions.
Abstract:
The invention relates to a method for determining the position of a surgical tool relative to a target volume inside an animal body according to a pre-plan comprising the steps of i) obtaining a plurality of two-dimensional images of said target volume using imaging means, each 2D-image being represented by an image data slice I(x,y,z); ii) reconstructing from said plurality of image data slices I(x,y,z) a three-dimensional image of said target volume using transformation means, said 3D-image being represented by a volumetric image data array V(x,y,z); iii) displaying said three-dimensional image of said target volume to an user using displaying means.