Paper Info
Title
QCT: A Measuring Tool Dedicated to the Estimation of Image Parameters for Quality Assurance/Quality Control Programs of CT Scanners
Abstract
Computed Tomography (CT) is one of the most widely used screening and diagnostic tools in medical imaging centers. Considering IAEA HUMAN HEALTH SERIES No. 19 and the American College of Radiology (ACR) Accreditation Program, quality assurance (QA) and quality control (QC) are mandatory programs to periodically monitor the system condition to promote the effective utilization of ionization radiation for a diagnostic outcome through obtaining and retaining appropriate image quality and reduction of patient dose. Computational phantoms (CPs) are the key tool to monitor system condition. The commercial QC phantoms are expensive products and are not flexible enough for user demands. In this paper, we designed and fabricated a new CP along with a graphical user-friendly interface program integrally called "QCT" enabling to measure IAEA/ACR-based standard image parameters and beyond metrics including CT calibration curve, CT number of multiple objects, contrast-to-noise ratio, the edge spread function, the line spread function, the modulation transfer function, spatial resolution, noise power spectrum, image noise, and uniformity. The experimental assessment of QCT was tested on a GE LightSpeed VCT multi-detector CT scanner available in our clinic. In addition, we reported the details of fabrication process of our QC phantom, enabling readers to create flexible and affordable QC phantoms.
Year
DOI
Venue
2020
10.1109/MeMeA49120.2020.9137199
2020 IEEE International Symposium on Medical Measurements and Applications (MeMeA)
Keywords
DocType
ISBN
Quality control,quality assurance,noise power spectrum,modulation transfer function,limiting spatial resolution,contrast-to-noise ratio,CT number,Computed Tomography
Conference
978-1-7281-5386-5
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Hamidreza Khodajou-Chokami100.68
Seyed Abolfazl Hosseini200.68
Mohammad Ghorbanzadeh300.34
Mohammad Reza Mohammadi4266.71