ArticleEuropean radiology2020
Physical evaluation of an ultra-high-resolution CT scanner.
Article in European radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 43 papers.
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43 citing papers in PubMed, 90 citations in OpenAlex.
- High-resolution chest CT using 1024-matrix reconstruction: phantom and clinical evaluation of image quality and post-processing capability.Japanese journal of radiology · 2026Article
- Impact of Spatial Resolution on CT Imaging of Middle Ear Prostheses: Comparison of Photon-Counting and Energy-Integrating Detectors.AJNR. American journal of neuroradiology · 2026Article
- Image Quality Advancements in Low-Dose Pediatric CT Using Super-Resolution Deep-Learning Reconstruction.Journal of imaging informatics in medicine · 2026Article
- Deep learning reconstruction for improved image quality of ultra-high-resolution brain CT angiography: application in moyamoya disease.Japanese journal of radiology · 2025Article
- Review
- Spatial resolution improvements for photon counting detectors using coincidence counting and frequency weighted reconstruction.Medical physics · 2025Article
- Spontaneous coronary artery dissection in a male patient with haemophilia A: a case report.European heart journal. Case reports · 2025Article
- Self-supervised denoising of grating-based phase-contrast computed tomography.Scientific reports · 2024Article
- Ultra-high resolution computed tomography with deep-learning-reconstruction: diagnostic ability in the assessment of gastric cancer and the depth of invasion.Abdominal radiology (New York) · 2024Article
- A compact X-ray source via fast microparticle streams.Communications engineering · 2024Article
- Radiation Detectors and Sensors in Medical Imaging.Sensors (Basel, Switzerland) · 2024Review
- Super-resolution deep learning image reconstruction: image quality and myocardial homogeneity in coronary computed tomography angiography.Journal of cardiovascular imaging · 2024Article
- CT in musculoskeletal imaging: still helpful and for what?Skeletal radiology · 2024Review
- Super-resolution deep-learning reconstruction for cardiac CT: impact of radiation dose and focal spot size on task-based image quality.Physical and engineering sciences in medicine · 2024Article
- Standardizing technical parameters and terms for abdominopelvic photon-counting CT: laying the groundwork for innovation and evidence sharing.Abdominal radiology (New York) · 2024Review
- An Overview of Cone-Beam Computed Tomography and Dental Panoramic Radiography in Dentistry in the Community.Tomography (Ann Arbor, Mich.) · 2024Review
- A preliminary study of super-resolution deep learning reconstruction with cardiac option for evaluation of endovascular-treated intracranial aneurysms.The British journal of radiology · 2024Article
- Super-resolution of clinical CT: Revealing microarchitecture in whole bone clinical CT image data.Bone · 2024Article
- Improvement of Neurovascular Imaging Using Ultra-High-Resolution Computed Tomography Angiography.Clinical neuroradiology · 2024Article
- Effectiveness of deep learning reconstruction on standard to ultra-low-dose high-definition chest CT images.Japanese journal of radiology · 2023Article
Corrections and comments
- Erratum issued
Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo evaluate the technical performance of an ultra-high-resolution CT (UHRCT) system.
methodsThe physico-technical capabilities of a novel commercial UHRCT system were assessed and compared with those of a current-generation multi-detector (MDCT) system. The super-high-resolution (SHR) mode of the system uses 0.25 mm (at isocentre) detector elements (dels) in the in-plane and longitudinal directions, while the high-resolution (HR) mode bins two dels in the longitudinal direction. The normal-resolution (NR) mode bins dels 2 × 2, resulting in a del-size equivalent to that of the MDCT system. In general, standard procedures and phantoms were used to perform these assessments.
resultsThe UHRCT MTF (10% MTF 4.1 lp/mm) is twice as high as that of the MDCT (10% MTF 1.9 lp/mm), which is comparable to the MTF in the NR mode (10% MTF 1.7 lp/mm). The width of the slice sensitivity profile in the SHR mode (FWHM 0.45 mm) is about 60% of that of the MDCT (FWHM 0.77 mm). Uniformity and CT numbers are within the expected range. Noise in the high-resolution modes has a higher magnitude and higher frequency components compared with MDCT. Low-contrast visibility is lower for the NR, HR and SHR modes compared with MDCT, but about a 14%, for NR, and 23%, for HR and SHR, dose increase gives the same results.
conclusionsHR and SHR mode scanning results in double the spatial resolution, with about a 23% increase in dose required to achieve the same low-contrast detectability. KEY POINTS: • Resolution on UHRCT is up to twice as high as for the tested MDCT. • With abdominal settings, UHRCT needs higher dose for the same low-contrast detectability as MDCT, but dose is still below achievable levels as defined by current diagnostic reference levels. • The UHRCT system used in normal-resolution mode yields comparable resolution and noise characteristics as the MDCT system.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.