Guided Radiation Therapy System

a radiation therapy system and radiation therapy technology, applied in the field of radiation therapy systems, can solve the problems of increased complications of healthy tissues, increased collateral damage to normal tissues, and inability to detect the source accurately, etc., and achieve the effect of accurate positioning and tracking
US20020193685A1Inactive Publication Date: 2002-12-19CALYPSO MEDICAL +1
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
CALYPSO MEDICAL
Publication Date
2002-12-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

<heading lvl="0">Abstract of Disclosure< / heading> A system and method for accurately locating and tracking the position of a target, such as a tumor or the like, within a body. In one embodiment, the system is a target locating and monitoring system usable with a radiation delivery source that delivers selected doses of radiation to a target in a body. The system includes one or more excitable markers positionable in or near the target, an external excitation source that remotely excites the markers to produce an identifiable signal, and a plurality of sensors spaced apart in a known geometry relative to each other. A computer is coupled to the sensors and configured to use the marker measurements to identify a target isocenter within the target. The computer compares the position of the target isocenter with the location of the machine isocenter. The computer also controls movement of the patient and a patient support device so the target isocenter is co-incident with the machine isocenter before and during radiation therapy.
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Description

Technical Field

[0001] This invention relates generally to radiation therapy systems, and more particularly to systems and methods for accurately locating and tracking a target in a body to which guided radiation therapy is delivered.Background of the Invention

[0002] Recent advances in radiation therapy are providing new avenues of effective treatment for localized cancer. These include three-dimensional conformal external beam radiation, intensity modulated radiation therapy (IMRT), and stereotactic radiosurgery and brachytherapy. These newer treatment modalities deliver greater doses of radiation to the tumor, which accounts for their increased effectiveness when compared to standard external beam radiation therapy.

[0003] To achieve continued improvements in the management of localized cancers with radiotherapy, further dose escalation is necessary because a dose response relationship for radiotherapy exists for most cancers. However, with the increased dose of delivered radiation ...

Claims

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