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Iterative reconstruction reduces abdominal CT dose.
A blending of 50-90% ASIR and FBP may improve image quality of low dose CT examinations of the liver, and thus give a potential for reducing radiation dose. Expand
How to measure CT image quality: variations in CT-numbers, uniformity and low contrast resolution for a CT quality assurance phantom.
The aim of this study was to analyze the characteristics of the most commonly used QA phantom in CT: Catphan 500/504/600, and to be aware of which phantom is used to study CT-numbers and low contrast resolution for a specific scanner. Expand
Ultra-low dose chest computed tomography: Effect of iterative reconstruction levels on image quality.
In comparison with the FBP technique, ASIR-V enhanced quantitative image quality parameters at all ultra-low doses tested and showed consistency with body size and collimation, Hence, ASir-V may be useful for improving image quality of chest CT at ultra- low doses. Expand
A Liver Phantom Study: CT Radiation Dose Reduction and Different Image Reconstruction Algorithms Affect Diagnostic Quality
This study shows that iterative reconstruction algorithms, in particular Veo, improve lesion detectability in a liver phantom, however, a too aggressive dose reduction may result in poorer image quality. Expand
Dose levels from thoracic and pelvic examinations in two pediatric radiological departments in Norway – a comparison study of dose-area product and radiographic technique
Background: Pediatric doses expressed in dose-area product (DAP) can be retrieved from only a few publications; most of which correlate DAP to patient size or large age spans. In clinical practiceExpand
A Weighted Histogram-Based Tone Mapping Algorithm for CT Images
A weighted histogram equalization-based tone mapping algorithm which utilizes Fast Fourier Transform for distance-dependent contribution calculation and distance-based weights and the resulting images have good local contrast without noticeable artefacts. Expand
Comparing five different iterative reconstruction algorithms for computed tomography in an ROC study
Only two algorithms improved lesion detection, even though noise reduction was shown with all algorithms, while three algorithms did not significantly improve lesion detectability. Expand
Tumor-Absorbed Dose for Non-Hodgkin Lymphoma Patients Treated with the Anti-CD37 Antibody Radionuclide Conjugate 177Lu-Lilotomab Satetraxetan
Tumor-absorbed doses for patients treated with 177Lu-lilotomab satetraxetan are comparable to doses reported for other radioimmunotherapy compounds, and results indicate that mean dose may be used as the sole dosimetric parameter on the lesion level. Expand
Average glandular dose in paired digital mammography and digital breast tomosynthesis acquisitions in a population based screening program: effects of measuring breast density, air kerma and beam
The main purpose was to compare average glandular dose (AGD) for same-compression digital mammography (DM) and digital breast tomosynthesis (DBT) acquisitions in a population based screening program,Expand
Classification of fatty and dense breast parenchyma: comparison of automatic volumetric density measurement and radiologists’ classification and their inter-observer variation
The optimal volumetric threshold of 10% using automatic assessment would classify breast parenchyma as fatty or dense with substantial accuracy and consistency compared to radiologists’ BI-RADS categorization, which suffers from high inter-observer variation. Expand