Share Email Print
cover

Proceedings Paper

Development of a quality control program for a cone beam CT imaging system
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Routine quality control assessments of medical equipment are crucial for an accurate patient medical treatment as well as for the safety of the patient and staff involved. These regular evaluations become especially important when dealing with radiation-emitting equipment. Therefore, a quality control (QC) program has been developed to quantitatively evaluate imaging systems by measuring standard parameters related to image quality such as the Modulation Transfer Function (MTF), the Noise Power Spectrum (NPS), uniformity, linearity and noise level among others. First, the methods of evaluating the aforementioned parameters have been investigated using a cone beam CT imaging system. Different exposure techniques, phantoms, acquisition modes of the flat panel detector (FPD) and reconstruction algorithms relevant to a clinical environment were all included in this investigation. Second, using the results of the first part of this study, a set of parameters for the QC program was established that yields both, an accurate depiction of the system image quality and an integrated program for easy and practical implementation. Lastly, this QC program will be implemented and practiced in our cone beam CT imaging system. The results using our available phantoms demonstrate that the QC program is adequate to evaluate stability and image quality of this system since it provides comparable parameters to other QC programs.

Paper Details

Date Published: 19 March 2008
PDF: 9 pages
Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 691356 (19 March 2008); doi: 10.1117/12.770427
Show Author Affiliations
Ricardo Betancourt Benítez, Univ. of Rochester Medical Ctr. (United States)
Univ. of Rochester (United States)
Ruola Ning, Univ. of Rochester Medical Ctr. (United States)
David Conover, Univ. of Rochester Medical Ctr. (United States)
Yan Zhang, Univ. of Rochester Medical Ctr. (United States)
Weixing Cai, Univ. of Rochester Medical Ctr. (United States)
Univ. of Rochester (United States)


Published in SPIE Proceedings Vol. 6913:
Medical Imaging 2008: Physics of Medical Imaging
Jiang Hsieh; Ehsan Samei, Editor(s)

© SPIE. Terms of Use
Back to Top