A61N5/1069

UTILIZATION OF A TRANSPORTABLE CT-SCANNER FOR RADIOTHERAPY PROCEDURES
20230008051 · 2023-01-12 ·

The present application relates to a data processing system and method for determining the position of a soft tissue body part within a patient's body. The data processing method includes acquiring CT-image data including information about the position of the body part within a coordinate system assigned to a transportable CT-device, wherein the patient's body is positioned relative to the treatment device, and wherein the CT-device is configured to be positioned relative to the patient's body and/or relative to the treatment device, acquiring first transformation data including information about a first transformation between the coordinate system assigned to the CT-device and a coordinate system assigned to the treatment device, and determining, based on the CT-image data and the first transformation data, position data including information about the position of the body part within the coordinate system assigned to the treatment device.

Systems and methods for shuttle mode radiation delivery

Systems and methods for shuttle mode radiation delivery are described herein. One method for radiation delivery comprises moving the patient platform through the patient treatment region multiple times during a treatment session. This may be referred to as patient platform or couch shuttling (i.e., couch shuttle mode). Another method for radiation delivery comprises moving the therapeutic radiation source jaw across a range of positions during a treatment session. The jaw may move across the same range of positions multiple times during a treatment session. This may be referred to as jaw shuttling (i.e., jaw shuttle mode). Some methods combine couch shuttle mode and jaw shuttle mode. Methods of dynamic or pipelined normalization are also described.

COUCHTOP BOARD OVERLAY FOR A PATIENT COUCHTOP BOARD AND PATIENT POSITIONING DEVICE
20230371907 · 2023-11-23 · ·

A couchtop board overlay for a patient couchtop board extends along a longitudinal direction from a first end section to a second end section. The couchtop board overlay includes a first countercoupling interface in the first end section, wherein, in a state coupled to the first coupling interface, the first countercoupling interface is configured to transmit an application of force in the longitudinal direction onto the couchtop board overlay. The couchtop board overlay further includes a second countercoupling interface in the second end section, wherein, in a coupled state, the second countercoupling interface is connected to the second coupling interface in at least one of a positive-locking or a force-fitted manner.

Compensating for target rotation with a collimation system
11712586 · 2023-08-01 · ·

A method includes detecting a potential setup error in a radiation treatment delivery session of a radiation treatment delivery system, wherein the setup error corresponds to a change in a current position of a treatment target relative to a prior position of the treatment target, and wherein the change includes a rotation relative to the prior position of the treatment target. The method further includes modifying, by a processing device, one or more planned leaf positions of a multileaf collimator (MLC) of a linear accelerator (LINAC) of the radiation treatment delivery system to compensate for the potential setup error corresponding to the rotation of the prior position of the treatment target.

Utilization of a transportable CT-scanner for radiotherapy procedures
11420076 · 2022-08-23 · ·

The present application relates to a data processing method for determining the position of a soft tissue body part within a patient's body. The data processing method includes acquiring CT-image data including information about the position of the body part within a coordinate system assigned to a transportable CT-device, wherein the patient's body is positioned relative to the treatment device, and wherein the CT-device is configured to be positioned relative to the patient's body and/or relative to the treatment device, acquiring first transformation data including information about a first transformation between the coordinate system assigned to the CT-device and a coordinate system assigned to the treatment device, and determining, based on the CT-image data and the first transformation data, position data including information about the position of the body part within the coordinate system assigned to the treatment device.

Surface-guided x-ray registration

Disclosed is a computer-implemented method for determining the pose of an anatomical body part of a patient's body for planning radiation treatment, a corresponding computer program, a non-transitory program storage medium storing such a program and a computer for executing the program, as well as a system for determining the pose of an anatomical body part of a patient's body for planning radiation treatment, the system comprising an electronic data storage device and acquire surface tracking data the aforementioned computer.

Systems and methods for shuttle mode radiation delivery

Systems and methods for shuttle mode radiation delivery are described herein. One method for radiation delivery comprises moving the patient platform through the patient treatment region multiple times during a treatment session. This may be referred to as patient platform or couch shuttling (i.e., couch shuttle mode). Another method for radiation delivery comprises moving the therapeutic radiation source jaw across a range of positions during a treatment session. The jaw may move across the same range of positions multiple times during a treatment session. This may be referred to as jaw shuttling (i.e., jaw shuttle mode). Some methods combine couch shuttle mode and jaw shuttle mode. Methods of dynamic or pipelined normalization are also described.

IMAGING BASED CALIBRATION SYSTEMS, DEVICES, AND METHODS
20220219017 · 2022-07-14 ·

Systems, devices, and methods for imaging-based calibration of radiation treatment couch position compensations.

DEVICE AND A METHOD FOR MONITORING A TREATMENT OF A BODY PART OF A PATIENT WITH PARTICLES

A device (110) and a method for monitoring a treatment of a body part (112) of a patient (114) with a beam (116) comprising particles (118) are disclosed. Herein, the device (110) comprises—a beam delivering unit (120) designated for delivering a beam (116) comprising particles (118) and adjusting a direction (124) of propagation of the beam (116) onto a body part (112) of a patient (114); and—a verification unit (130) designated for verifying a range and a dose delivery of the particles (118) provided by the beam (116) to the body part (112) of the patient (114) by determining information about prompt-gamma radiation (140) generated by an interaction of the particles (118) with the body part (112) of the patient (114) at at least two individual interaction points (150), wherein the verification unit (130) comprises a symmetry axis (149) which is symmetrical with respect to the at least two individual interaction points (150) and which is located perpendicular with respect to the direction (124) of the propagation of the beam (116). The device (110) and the method may be used in the field of particle therapy, specifically for verifying a range and a dose delivery of the particles (118) provided by the beam (116) to the body part (112) of a patient (114), especially towards a tumorous tissue of the patient (114).

Radiation therapy systems and methods using an external signal
11376446 · 2022-07-05 · ·

There is disclosed a method for estimating the position of a target in a body of a subject. The method includes, receiving an external signal that is related with motion of the target; and using a model of a correlation between the external signal and the motion of the target to estimate the position of the target, wherein said position estimation includes an estimate of three dimensional location and orientation of the target. The method further includes periodically receiving a 2-dimensional projection of the target; and updating the model of correlation between the external signal and the motion of the target based on a comparison of the estimated position of the target and the 2-dimensional projection of the target. The method is used in guided radiation therapy.