The application of spherical standards for the evaluation of the accuracy of mapping shape in computed tomography
-
Andrzej Ryniewicz
,
Jerzy Sładek
und
Marcin Krawczyk
Abstract
Anatomical structures are characterized by free surfaces, and most are in lobed and pseudo-spherical shapes. The aim of this article is to analyze selected procedures for accuracy assessment of the shape and dimensions of these structures using certified sphere and Ball Bar standards and to propose metrology parameters facilitating comparison of diagnostic devices. The spherical standard of various materials and Ball Bar standards with various distances between spheres centers can be a tool for evaluation of computed tomography metrology applications. Errors in geometry mapping can be identified on the basis of standardized control systems used in coordinate measuring techniques.
Acknowledgments
The authors acknowledge the John Paul II Hospital in Krakow, Department of Radiology, Jagiellonian University Medical College and the Medical Centre iMed24 S.A. for the opportunity to carry out research on spherical standard and phantoms.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
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Artikel in diesem Heft
- Frontmatter
- Reviews
- Genetic background of urinary incontinence – state-of-the-art and perspectives
- Modeling of metabolic diseases – a review of selected methods
- Research Articles
- Evaluation of Emotiv EEG neuroheadset
- Experimental research and modeling of selected layers of the trachea based on EBUS
- Application of S-transform to signal analysis
- The application of spherical standards for the evaluation of the accuracy of mapping shape in computed tomography
- Branched iterated function system (IFS) models with positioners for biological visualizations
- Rough assessment of GPU capabilities for parallel PCC-based biclustering method applied to microarray data sets
- Research on dynamics of the knee joint for different types of loads
- Modeling of lumbar spine equipped with fixator
