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Fractionated radiation therapy planning equipment and storage medium

A storage medium, sub-radiation technology, used in fractionated radiation therapy, oncology

Active Publication Date: 2021-07-06
KONINKLJIJKE PHILIPS NV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in current clinical practice, fractionated regimens are often not optimally chosen, so often they do not balance differential effects in an optimal manner

Method used

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  • Fractionated radiation therapy planning equipment and storage medium
  • Fractionated radiation therapy planning equipment and storage medium
  • Fractionated radiation therapy planning equipment and storage medium

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] refer to figure 1 , describes a radiation therapy planning device or system. A medical imaging device 10, such as a computed tomography (CT) or magnetic resonance (MR) scanner, acquires one or more images of a subject, including at least the tumor to be irradiated and possibly one or more organs at risk (OARs) surrounding tissues. These images are often called planning images because they are used in planning radiation therapy. To this end, a contoured graphical user interface (GUI) 12 is implemented on a computer 14 having a display 16 and one or more user input devices such as a keyboard 18 and / or mouse 19 and / or a touch-sensitive overlay of the display component 16. things). The contouring graphical GUI 12 enables a skilled user (e.g., physician, dosimetrist, etc.) to delineate features in the planning image, including the tumor to be irradiated and any OARs in the vicinity of the tumor (or more generally, which will be present in any treatment in the path of the...

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Abstract

The fractional optimization receives input including a radiation dose distribution to be delivered by fractionated radiation therapy, a maximum number of fractions and a minimum number of fractions, and biologically effective dose (BED) constraints for one or more organs at risk. displaying a two-dimensional (2D) graph of a parameter X equal to or proportional to versus a parameter Y equal to or proportional to, where N is the number of segments, D is the total radiation dose to be delivered by the fractionated radiation therapy, and d t is the fractional dose in segment t. Constrained BED lines are displayed on a 2D graph depicting each BED constraint. Markers are displayed at positions on the 2D graph defined by the current fraction and the current total dose. New values ​​for the current fraction and / or the current total dose are received and the flags are updated accordingly. Alternatively, a second indicia is displayed showing the new grading scheme and its comparative advantages and disadvantages relative to the current grading.

Description

technical field [0001] The following generally relates to the field of fractionated radiation therapy, the field of fractionated radiation therapy planning, the field of oncology, and related fields. Background technique [0002] In radiation therapy, a therapeutic dose of radiation is usually delivered to the patient over several radiation treatments, usually with a one-day recovery period between successive segments. This approach is called fractionated radiation therapy. The main idea behind fractionated delivery is that tumor tissue is expected to recover poorer from dose fractionation than healthy tissue, and thus fractional delivery allows for a greater overall therapeutic dose. Thus, increased doses in more segments can achieve better tumor control, however, this gain must always be balanced against the probability of normal tissue complications. [0003] Both the positive killing effect of radiation on tumors and its negative damaging effect on healthy organs are i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
CPCA61N5/1031A61N5/1045A61N5/1039G16H20/40G16H15/00A61N2005/1074A61N2005/1087G06F3/0484A61N5/1071G16H40/60G16H30/00
Inventor Z·佩尔科J·翁克尔巴赫M·F·巴尔
Owner KONINKLJIJKE PHILIPS NV
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