Objective criteria for acceptability and constancy tests of digital subtraction angiography

Gala, Hugo de las Heras; Torres, Renato; Fernandez-Soto, J. M.; Vañó, Eliseo

doi:10.1016/j.ejmp.2015.10.089

Cited by 3 publications

(11 citation statements)

References 10 publications

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“…In Equation ( 5), extracted from article [9], ROI represents the average pixel value within an object of interest that has higher attenuation than the background, while Bg corresponds to the mean value of the background itself. SD Bg denotes the standard deviation of the pixels belonging to the background.…”

Section: Cnr Objective Estimationmentioning

confidence: 99%

“…A higher CNR value indicates a greater ability to distinguish objects such as guide wires or stents within blood vessels. Calculating CNR enables an objective evaluation of the visibility of these vessels against the background's quantum noise [9,11].…”

Section: Cnrmentioning

confidence: 99%

“…Studies reveal 2-3 times higher cancer likelihood from radiation exposure before age 15 as compared to adults [5][6][7]. Hence, optimizing radiation doses and image quality is crucial for pediatric interventional cardiology [3,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…For unbiased evaluation, software capable of displaying and manipulating DICOM images can provide a means to measure averages and deviations in multiple regions of interest (ROIs). This aids acceptance tests, determining action levels, and setting reference values for consistency checks [9].…”

Section: Introductionmentioning

confidence: 99%

“…Within this framework, the image quality metrics commonly considered are signalto-noise ratio (SNR) [1,5,[12][13][14], contrast-to-noise ratio (CNR) [9][10][11]14] and high-contrast spatial resolution (HCSR) [6,8,11,12]. These metrics can help to optimize the settings of X-ray systems for different patient sizes, ensuring comparable image quality while minimizing patient radiation doses [11].…”

Section: Introductionmentioning

confidence: 99%

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Physical Image Quality Metrics for the Characterization of X-ray Systems Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures: A Systematic Review

Nocetti,

Villalobos,

Wunderle

2023

Children

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Pediatric interventional cardiology procedures are essential in diagnosing and treating congenital heart disease in children; however, they raise concerns about potential radiation exposure. Managing radiation doses and assessing image quality in angiographs becomes imperative for safe and effective interventions. This systematic review aims to comprehensively analyze the current understanding of physical image quality metrics relevant for characterizing X-ray systems used in fluoroscopy-guided pediatric cardiac interventional procedures, considering the main factors reported in the literature that influence this outcome. A search in Scopus and Web of Science, using relevant keywords and inclusion/exclusion criteria, yielded 14 relevant articles published between 2000 and 2022. The physical image quality metrics reported were noise, signal-to-noise ratio, contrast, contrast-to-noise ratio, and high-contrast spatial resolution. Various factors influencing image quality were investigated, such as polymethyl methacrylate thickness (often used to simulate water equivalent tissue thickness), operation mode, anti-scatter grid presence, and tube voltage. Objective evaluations using these metrics ensured impartial assessments for main factors affecting image quality, improving the characterization of fluoroscopic X-ray systems, and aiding informed decision making to safeguard pediatric patients during procedures.

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Section: Cnr Objective Estimationmentioning

confidence: 99%

Section: Cnrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Physical Image Quality Metrics for the Characterization of X-ray Systems Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures: A Systematic Review

Nocetti,

Villalobos,

Wunderle

2023

Children

View full text Add to dashboard Cite

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Physical Image Quality Metrics for the Characterization of X-ray Machines Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures

Nocetti¹,

Villalobos²,

Wunderle³

2023

Preprint

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Pediatric interventional cardiology procedures are essential in diagnosing and treating congenital heart disease in children; however, they raise concerns about potential radiation exposure. Managing radiation doses and assessing image quality in angiographs becomes imperative for safe and effective interventions. This study aims to comprehensively analyze the current understanding of physical image quality metrics relevant for characterizing X-ray machines used in fluoroscopy-guided pediatric cardiac interventional procedures, considering the main factors reported in the literature that influence this outcome. A search in Scopus and Web of Science, using relevant keywords and inclusion/exclusion criteria, yielded fourteen relevant articles published between 2000 and 2022. The physical image quality metrics reported were noise (N), signal-to-noise ratio (SNR), contrast (C), contrast-to-noise ratio (CNR) and high contrast spatial resolution (HCSR). Various factors influencing image quality were investigated, such as PMMA thickness, operation mode, anti-scatter grid presence and tube voltage. Objective evaluations using these metrics ensure impartial assessments for main factors affecting image quality, improving in the characterization fluoroscopic X-ray machines, and aiding informed decisions to safeguard pediatric patients during procedures.

show abstract

Physical Image Quality Metrics for the Characterization of X-ray Systems Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures: A Systematic Review

Nocetti,

Villalobos,

Wunderle

2023

Preprint

View full text Add to dashboard Cite

Pediatric interventional cardiology procedures are essential in diagnosing and treating congenital heart disease in children; however, they raise concerns about potential radiation exposure. Managing radiation doses and assessing image quality in angiographs becomes imperative for safe and effective interventions. This systematic review aims to comprehensively analyze the current understanding of physical image quality metrics relevant for characterizing X-ray systems used in fluoroscopy-guided pediatric cardiac interventional procedures, considering the main factors reported in the literature that influence this outcome. A search in Scopus and Web of Science, using relevant keywords and inclusion/exclusion criteria, yielded fourteen relevant articles published between 2000 and 2022. The physical image quality metrics reported were noise, signal-to-noise ratio, contrast, contrast-to-noise ratio, and high contrast spatial resolution. Various factors influencing image quality were investigated, such as polymethyl methacrylate thickness (often used to simulate water equivalent tissue thickness), operation mode, anti-scatter grid presence and tube voltage. Objective evaluations using these metrics ensure impartial assessments for main factors affecting image quality, improving in the characterization fluoroscopic X-ray systems, and aiding informed decisions to safeguard pediatric patients during procedures.

show abstract

Objective criteria for acceptability and constancy tests of digital subtraction angiography

Cited by 3 publications

References 10 publications

Physical Image Quality Metrics for the Characterization of X-ray Systems Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures: A Systematic Review

Physical Image Quality Metrics for the Characterization of X-ray Systems Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures: A Systematic Review

Physical Image Quality Metrics for the Characterization of X-ray Machines Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures

Physical Image Quality Metrics for the Characterization of X-ray Systems Used in Fluoroscopy-Guided Pediatric Cardiac Interventional Procedures: A Systematic Review

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