Golestan University of Medical Sciences Repository

Development of head docking device for linac-based radiosurgery with a Neptun 10 PC linac

Khoshnazar, A.K. and Toossi, M.T.B. and Hashemian, A. and Salek, R. (2006) Development of head docking device for linac-based radiosurgery with a Neptun 10 PC linac. Physica Medica, 22 (1). pp. 25-28. ISSN 11201797 (ISSN)

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Abstract

Stereotactic radiosurgery is a method for focused irradiation of intracranial lesions. Linac-based radiosurgery is currently performed by two techniques: couch mounted and pedestal mounted. In the first technique a device is required to affix the patient's head to the couch and moreover to translate it accurately. Structure of such a device constructed by the authors plus acceptance test performed for evaluation is described in the article. A head docking device has been designed and constructed according to geometry of linac's couch and also desired functions. The device is completely made from aluminum and consists of four major components: attachment bar, lower structure with four movements, upper structure with two movements equipped with a lock, two handles and a mounting ring for stereotactic frame. Translating accuracy, mechanical stability and isocentric accuracy were assessed in the frame of acceptance test. Translating accuracy, mechanical stability and isocentric accuracy were found to be respectively: 1 mm, 1.64 mm and 3.2 mm with accuracy of 95%. According to AAPM report no.54, a head docking device should translate head with an accuracy of 1 mm; this recommendation has been met. Moreover, we have demonstrated that the isocentric accuracy and mechanical stability of the device are sufficient that the device can confidently be used in stereotactic treatment.

Item Type: Article
Additional Information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Phys. Med. [Field not mapped to EPrints] AD - Department of Basic Sciences, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran [Field not mapped to EPrints] AD - Medical Physics Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran [Field not mapped to EPrints] AD - Radiotherapy Department, Imam Reza Hospital, Mashhad, Iran [Field not mapped to EPrints] AD - Department of Basic Sciences, Faculty of Medicine, Golestan University of Medical Sciences, Begining of Shast colah's road, Gorgan, Iran [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled Keywords: Head docking device, Mechanical stability, Stereotactic radiosurgery, Translating accuracy, aluminum, article, brain damage, head, human, medical instrumentation, radiosurgery, stereotaxic surgery, surgical technique
Subjects: مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
Divisions: معاونت تحقیقات و فناوری
Depositing User: GOUMS
Date Deposited: 20 Apr 2015 03:36
Last Modified: 07 Feb 2017 07:10
URI: http://eprints.goums.ac.ir/id/eprint/2456

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