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Treatment planning apparatus

A treatment planning, X-ray technology, applied in the fields of treatment, radiation therapy, X-ray/γ-ray/particle irradiation therapy, etc., can solve the problems of inability to estimate the time required for treatment and inconvenience for the maker of treatment plan.

Active Publication Date: 2018-07-31
HITACHI LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, in conventional radiation therapy, the time required for treatment cannot be estimated at the time of treatment planning, which is inconvenient for treatment planners

Method used

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Embodiment approach 1

[0027] First, a particle beam therapy system will be described as an example of a radiation therapy system including the treatment planning device of the present invention. Figure 4 It is a block diagram schematically showing the configuration of an example of a particle beam therapy system including the treatment planning device of the present invention. Particle beams 2 , which are high-energy charged particle beams emitted from an accelerator 1 for accelerating charged particles, pass through a vacuum line 3 and are sent to an irradiation nozzle 4 provided downstream of the vacuum line 3 . Here, a bias electromagnet for changing the advancing direction of the particle beam 2 is provided at the bent portion of the vacuum pipe 3, but Figure 4 The illustration is omitted in . The particle beam 2 is scanned in a two-dimensional direction perpendicular to the advancing direction of the particle beam 2 by the scanning electromagnet included in the irradiation nozzle 4 . The s...

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Abstract

The present invention includes: an X-ray image position uncertainty computation unit that computes a position uncertainty of a lesion by predicting a degree of sharpness of an X-ray image which is obtained with an assumed X-ray intensity; a therapeutic radiation parameter computation unit that computes an irradiation parameter of therapeutic radiation on the basis of the computed position uncertainty of the lesion; an X-ray radiation amount computation unit that computes an amount of X-ray radiation with which a patient is irradiated by an X-ray imaging device with the assumed X-ray intensity;a therapeutic radiation dose distribution computation unit that computes a dose distribution of the therapeutic radiation that the patient is irradiated with using the computed irradiation parameterof the therapeutic radiation; and a display that displays the computed amount of X-ray radiation and the computed therapeutic radiation dose distribution.

Description

technical field [0001] The present invention relates to a treatment planning device for assisting treatment planning in image-guided radiation therapy. Background technique [0002] In radiation therapy, in order to irradiate therapeutic radiation to the affected area with high precision, there has been proposed Image Guided Radiation Therapy (IGRT: Image Guided Radiation Therapy), which irradiates therapeutic radiation while confirming the position of the affected area using images such as X-ray images. (eg Patent Document 1). When using X-ray images as IGRT, the patient is exposed to X-rays for image acquisition in addition to therapeutic radiation. It is desirable that this exposure be as little as possible. [0003] In image-guided radiation therapy in which therapeutic radiation is irradiated while confirming the position of an organ using an X-ray imaging device, it is inconvenient for the treatment planner to estimate the exposure dose by X-ray imaging at the time o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10G16B45/00
CPCA61N5/103A61N2005/1074A61N5/10A61N5/1039
Inventor 坂本裕介花川和之
Owner HITACHI LTD