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Commissioning and quality assurance of Calypso four-dimensional target localization system in linear accelerator facility.

Muralidhar KR, Komanduri K, Rout BK, Ramesh KK - J Med Phys (2013)

Bottom Line: Four dimensional (4D) target localization system (Calypso System) was installed at our hospital, which is equipped with Beacon Transponders, Console, Electromagnetic Array, Optical System, Tracking Station, Treatment table overlay, and Calypso kVue Couch top.The objective of this presentation is to describe the results of commissioning measurements carried out on the Calypso System to verify the manufacturer specifications and also to evolve a quality assurance (QA) procedure which can be used to test its performance routinely.These tests were found to be useful to assess the performance of the Calypso System.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiation Oncology, American Oncology Institute, Hyderabad, Andhra Pradesh, India.

ABSTRACT
Four dimensional (4D) target localization system (Calypso System) was installed at our hospital, which is equipped with Beacon Transponders, Console, Electromagnetic Array, Optical System, Tracking Station, Treatment table overlay, and Calypso kVue Couch top. The objective of this presentation is to describe the results of commissioning measurements carried out on the Calypso System to verify the manufacturer specifications and also to evolve a quality assurance (QA) procedure which can be used to test its performance routinely. The QA program consists of a series of tests (QA for checking the calibration or system accuracy, Camera Calibration with L-frame fixture, Camera Calibration with T-frame fixture, System calibration Fixture targets test, Localization, and Tracking). These tests were found to be useful to assess the performance of the Calypso System.

No MeSH data available.


Isocenter calibration fixture
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Figure 6: Isocenter calibration fixture

Mentions: In this Calypso System, coordinate reference frame is calibrated to the machine isocenter using the isocenter fixture [Figure 6]. It contains three Beacon transponders and has scribe lines on three vertical sides and the top for alignment with the lasers in the treatment room. In addition, the fixture has six optical reflectors, and three thumbwheels for adjusting the fixture's height. The fixture also contains an internal tungsten ball positioned at isocenter that may be used for image verification of the fixture position.


Commissioning and quality assurance of Calypso four-dimensional target localization system in linear accelerator facility.

Muralidhar KR, Komanduri K, Rout BK, Ramesh KK - J Med Phys (2013)

Isocenter calibration fixture
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3775039&req=5

Figure 6: Isocenter calibration fixture
Mentions: In this Calypso System, coordinate reference frame is calibrated to the machine isocenter using the isocenter fixture [Figure 6]. It contains three Beacon transponders and has scribe lines on three vertical sides and the top for alignment with the lasers in the treatment room. In addition, the fixture has six optical reflectors, and three thumbwheels for adjusting the fixture's height. The fixture also contains an internal tungsten ball positioned at isocenter that may be used for image verification of the fixture position.

Bottom Line: Four dimensional (4D) target localization system (Calypso System) was installed at our hospital, which is equipped with Beacon Transponders, Console, Electromagnetic Array, Optical System, Tracking Station, Treatment table overlay, and Calypso kVue Couch top.The objective of this presentation is to describe the results of commissioning measurements carried out on the Calypso System to verify the manufacturer specifications and also to evolve a quality assurance (QA) procedure which can be used to test its performance routinely.These tests were found to be useful to assess the performance of the Calypso System.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiation Oncology, American Oncology Institute, Hyderabad, Andhra Pradesh, India.

ABSTRACT
Four dimensional (4D) target localization system (Calypso System) was installed at our hospital, which is equipped with Beacon Transponders, Console, Electromagnetic Array, Optical System, Tracking Station, Treatment table overlay, and Calypso kVue Couch top. The objective of this presentation is to describe the results of commissioning measurements carried out on the Calypso System to verify the manufacturer specifications and also to evolve a quality assurance (QA) procedure which can be used to test its performance routinely. The QA program consists of a series of tests (QA for checking the calibration or system accuracy, Camera Calibration with L-frame fixture, Camera Calibration with T-frame fixture, System calibration Fixture targets test, Localization, and Tracking). These tests were found to be useful to assess the performance of the Calypso System.

No MeSH data available.