Siemens Medical Solutions Usa, Inc.

Siemens Medical Systems, Inc.

Todd Howard Steinberg

William J Gibb

Loren Lentz

Debra Penny

Charles Clark

Bert David Egley

Francisco Miguel Hernandez-Guerra

Mark G Wofford

Joseph Scott Saba

Michael John Smidebush

Robert J Heck

A rotatable multi-element beam shaping device according to embodiments of the invention includes a first assembly, rotatable about a central axis through which a beam passes. The first assembly has a first and a second jaw adapted to move across the central axis to shape the beam. A second assembly, positioned below the first assembly, is also rotatable about the central axis, and has a third and a fourth jaw adapted to move across the central axis to further shape the beam. The first and the second assemblies, according to the invention, are separately controllable.

Rotatable multi-element beam shaping device

An x-ray target assembly including a housing having a recess, a cooling fluid contained within the recess and an x-ray target attached to the housing, wherein the x-ray target does not directly contact the cooling fluid.

Tungsten composite x-ray target assembly for radiation therapy

A portal imaging device positioning apparatus includes a portal imaging device positioner () attachable to a support (). The portal imaging device positioner () is adapted to vertically adjust an imaging panel () in a treatment or dosimetry mode to receive radiation through a body in the patient plane (), and adjust the panel in a physics mode to receive radiation at the patient plane ().

System and method for positioning an electric portal imaging device

A radiation therapy device including a linear accelerator ( ) for providing radiation to a body; and an electronic portal imaging device ( ) operably coupled to the linear accelerator. The electronic portal imaging device ( ) is adapted for use in commissioning the radiation therapy device and adapted for use in dosimetry applications during therapy.

System and method for measuring beam quality and dosimetry using electronic portal imaging

A portal imaging device positioning apparatus includes a portal imaging device positioner ( ) attachable to a support ( ). The portal imaging device positioner ( ) is adapted to vertically adjust an imaging panel ( ) in a treatment or dosimetry mode to receive radiation through a body in the patient plane ( ), and adjust the panel in a physics mode to receive radiation at the patient plane ( ).

System and method for positioning an electronic portal imaging device

A method and apparatus for generating a plurality of sets of segment data include inputting treatment data into a planning computer, the treatment data defining a radiation therapy treatment to be delivered by a radiation therapy device having independently rotatable X- and Y-collimator jaws in which the X-collimator jaws have a plurality of elements which may be independently moved across a beam axis. A plurality of sets of segment data are generated based on the treatment data. Each of the plurality of sets of segment data include data for positioning the X- and Y-collimator jaws and the plurality of elements in order to deliver a portion of the radiation therapy treatment.

Method and apparatus for controlling a rotatable multi-element beam shaping device

A method and system in accordance with the present invention uses the existing hardware and divides the treatment port dose into segments. In between each segment the field, with respect to the beam, would be translated, and the leaf positions would be adjusted to maintain the tumor contour. By integrating the above-identified methodology with a hardware system, accurate conformal radiation therapy is provided while minimizing leakage. In addition, through the present invention, higher dose rates can be provided while not appreciably affecting treatment time.

Integrated high definition intensity multileaf collimator system which provides improved conformal radiation therapy while minimizing leakage

Aspects for virtual wedge treatment with wedge angle optimization are described. In a method aspect, the method includes adjusting a preselected calibration factor based on chosen treatment conditions. The method further includes achieving an optimal wedge intensity distribution with the adjusted calibration factor for the chosen treatment conditions in a virtual wedge radiation treatment session. Additionally, adjusting includes determining an appropriate calibration factor for a given wedge angle and depth.

Wedge angle optimization for a virtual wedge treatment

A method and an apparatus for positioning blocking elements (310, 320) in a collimator (4) is provided. The collimator (4) is located in a radiation emitting device (2) delivering a radiation beam (1) to an object (13). The collimator (4) includes a plurality of movable blocking elements (310, 320). The blocking elements (310, 320) are movable for defining an opening (330) for the radiation beam (1). After forming an opening (330) with the blocking elements (310, 320), a calibration tool (400) having a cross bar (410) is inserted in the opening (330) and the cross bar (410) is moved to a defined first position (500) in the opening (408) of the calibration tool. A group of blocking elements is then moved to the cross bar (410). The cross bar (410) is then moved to a defined second position (510) in the opening (408) and the a group of blocking elements is moved to the cross bar (410). The beformentioned steps are repeated until the collimator is calibrated or all the blocking elements (310, 320) are positioned.

Growing community of inventors

Antioch, CA, United States of America

Todd Howard Steinberg