A multi-purpose balloon intra-cavity catheter includes a catheter having a proximal end portion, a central portion and a non-branching distal end portion, a plurality of lumens associated with the catheter extending from the proximal end portion, and a plurality of inflatable balloons positioned in the central portion and/or the non-branching distal end portion. Each of the plurality of inflatable balloons is communicatively associated with a corresponding one of the plurality of lumens, the plurality of inflatable balloons being selectively inflated or deflated to position and stabilize the catheter in a cavity for delivery of a medical treatment. The catheter can include an extraction opening associated with a lumen to remove fluids and materials from the cavity, and a connector associated with a corresponding lumen adapted to selectively receive one or more of a fluid medium or a radioactive isotope provided to a corresponding lumen for delivery of the medical treatment.

Systems, methods, and computer software are disclosed for acquiring images during delivery of a radiation beam, the images capturing at least a portion of a shape representative of a radiation field generated by a radiation delivery system that includes a radiation source configured to deliver the radiation beam.

A radiotherapy dose rate monitor system includes an electrode configured to be impinged by radiotherapy radiation, and a current measurement circuit configured to measure a current through the electrode. An emission of secondary electrons emitted from the electrode provides a majority of current through the electrode.

A radiotherapy dose rate monitor system includes an emitting electrode configured to be impinged by radiotherapy radiation; a collecting electrode configured to form an electrical circuit with said emitting electrode, a current measurement device configured to measure a current through said emitting and collecting electrodes indicative of a dose of said radiotherapy radiation, and a chamber enclosing a gas. Emission of secondary electrons from the emitting electrode provides a majority of the current.

The embodiments of the present disclosure provide a system for determining a radiation dose. The system may include: obtaining data related to radiation source, a radiation auxiliary image of a target object at a target radiation time point, and an initial fluence map corresponding to the target radiation time point; determining a target fluence map corresponding to the target radiation time point by one or more iterations based on the radiation auxiliary image, the initial fluence map, and the data related to radiation source; obtaining a target scanning image of the target object; and determining the radiation dose received by the target object at the target radiation time point, based on the target fluence map, the target scanning image, and the data related to radiation source.

The present invention provides strategies to use and control the delivery of ionizing radiation to carry out therapeutic and industrial irradiation treatments. The present invention uses partial pulse control, component selection, and/or component configuration strategies in order to accurately monitor and terminate irradiation. The strategies are particularly useful to control dosing in the high dose rate and short time scales associated with FLASH technology.

Magnetic resonance (MR) guided radiation therapy (MRgRT) enables control over the delivery of radiation based on patient motion indicated by MR imaging (MRI) images captured during radiation delivery. A method for MRgRT includes: simultaneously using one or more radiation therapy heads to deliver radiation and an MRI system to perform MRI; using a processor to determine whether one or more gates are triggered based on at least a portion of MRI images captured during the delivery of radiation; and in response to determining that one or more gates are triggered based on at least a portion of the MRI images captured during the delivery of radiation, suspending the delivery of radiation.

A method for treating a tumor, comprising identifying a tumor as a glioblastoma tumor and implanting in the tumor identified as a glioblastoma tumor, as least one diffusing alpha-emitter radiation therapy (DaRT) source (21) with a suitable radon release rate and for a given duration, such that the source (21) provides during the given duration a cumulated activity of released radon between 6.5 Mega becquerel (MBq) hour and 14.3 MBq hour, per centimeter length.

The present disclosure relates to systems and methods for pulse parameter modulation. The systems may perform the methods to obtain information related to a treatment plan; determine a backward window based on the information related to the treatment plan, within which one or more radiation pulses have been transmitted; determine backward information associated with the backward window based on the information related to the treatment plan and the backward window; determine a forward window based on the information related to the treatment plan, within which one or more radiation pulses are to be transmitted; determine forward information associated with the forward window based on the information related to the treatment plan, the backward information, and the forward window; and determine one or more pulse parameters of the forward window based on the forward information.

Disclosed are a radiotherapy system and a treatment plan generation method therefor. The radiotherapy system includes a beam irradiation device, a treatment planning module and a control module. The beam irradiation device generates a beam for treatment and irradiates same to a body to be irradiated to form an irradiated site, the treatment planning module generates a treatment plan on the basis of parameters of the beam for treatment and medical image data of the irradiated site, and the control module retrieves a treatment plan corresponding to said body from the treatment planning module and controls the beam irradiation device to sequentially irradiate said body according to at least two irradiation angles determined according to the treatment plan generation method and the irradiation time corresponding to each irradiation angle.