Can virtual monochromatic images from dual-energy CT replace low-kVp images for abdominal contrast-enhanced CT in small- and medium-sized patients?
Sign Up to like & getrecommendations! Published in 2018 at "European Radiology"
DOI: 10.1007/s00330-018-5850-z
Abstract: ObjectiveTo investigate the image quality and radiation dose of dual-energy computed tomography (DECT) with automatic spectral imaging protocol selection (ASIS) compared with those of low-kVp CT in abdominal multiphase CT.MethodsFour groups of 60 patients each… read more here.
Keywords: image; contrast; kvp; kvp images ... See more keywords
A LESSON FROM AUTOMATIC TUBE VOLTAGE SELECTION: FEASIBILITY OF 100 kVp IN PORTAL VENOUS PHASE ABDOMINAL CT.
Sign Up to like & getrecommendations! Published in 2020 at "Radiation protection dosimetry"
DOI: 10.1093/rpd/ncz302
Abstract: PURPOSE To evaluate the relationship between ATVS-recommended tube voltage and patient body habitus and to compare radiation dose and diagnostic performance between fixed 120-kVp and ATVS protocols in portal venous phase abdomen CT. METHODS A… read more here.
Keywords: tube voltage; venous phase; kvp; portal venous ... See more keywords
Hepatic dual-contrast CT imaging: slow triple kVp switching CT with CNN-based sinogram completion and material decomposition
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Medical Imaging"
DOI: 10.1117/1.jmi.9.1.014003
Abstract: Abstract. Purpose: Dual-contrast protocols are a promising clinical multienergy computed tomography (CT) application for focal liver lesion detection and characterization. One avenue to enable multienergy CT is the introduction of photon-counting detectors (PCD). Although clinical… read more here.
Keywords: kvp switching; kvp; dual contrast; decomposition ... See more keywords
Abstract 1335: Comparison of X-ray and gamma-ray irradiators for in vitro and in vivo biological effectiveness
Sign Up to like & getrecommendations! Published in 2025 at "Cancer Research"
DOI: 10.1158/1538-7445.am2025-1335
Abstract: The Cesium Irradiator Replacement Program (CIRP) was established in 2014 to replace radioisotope-based irradiators with non-radioactive alternatives, such as X-rays. As most dosimetry is based on 137Cs irradiators, transitioning to X-ray systems has presented challenges… read more here.
Keywords: biological effectiveness; ray irradiators; radiation; vitro vivo ... See more keywords
Variation in tube voltage for pediatric neck 64VCT: Effect on radiation dose and image quality
Sign Up to like & getrecommendations! Published in 2021 at "PLoS ONE"
DOI: 10.1371/journal.pone.0259772
Abstract: Exposure to ionizing radiation can cause cancer, especially in children. In computed tomography (CT), a trade-off exists between the radiation dose and image quality. Few studies have investigated the effect of dose reduction on image… read more here.
Keywords: image; image quality; neck; kvp ... See more keywords
Coronary artery calcium score scan at 100 kVp with tin filtration (Sn100 kVp) prior to coronary computed tomography angiography for overall radiation dose reduction: a prospective cohort study
Sign Up to like & getrecommendations! Published in 2022 at "Quantitative Imaging in Medicine and Surgery"
DOI: 10.21037/qims-21-1129
Abstract: Background Reducing radiation dose is a global concern in coronary computed tomography angiography (CCTA). We aimed to investigate whether a coronary artery calcium score (CACS) scan would lead to an overall reduction of radiation dose… read more here.
Keywords: kvp; computed tomography; ccta; radiation dose ... See more keywords
High-Pitch Coronary CT Angiography at 70 kVp Adopting a Protocol of Low Injection Speed and Low Volume of Contrast Medium
Sign Up to like & getrecommendations! Published in 2017 at "Korean Journal of Radiology"
DOI: 10.3348/kjr.2017.18.5.763
Abstract: Objective To evaluate the feasibility and image quality (IQ) of prospectively high-pitch coronary CT angiography (CCTA) with low contrast medium injection rate at 70 kVp. Materials and Methods One hundred and four patients with suspected… read more here.
Keywords: contrast; kvp; rate; injection ... See more keywords
Deep Learning-Based Reconstruction vs. Iterative Reconstruction for Quality of Low-Dose Head-and-Neck CT Angiography with Different Tube-Voltage Protocols in Emergency-Department Patients
Sign Up to like & getrecommendations! Published in 2022 at "Diagnostics"
DOI: 10.3390/diagnostics12051287
Abstract: Objective: To compare the image quality of computed tomography angiography of the supra-aortic arteries (CTSA) at different tube voltages in low doses settings with deep learning-based image reconstruction (DLR) vs. hybrid iterative reconstruction (H-IR). Methods:… read more here.
Keywords: image quality; quality; kvp; reconstruction ... See more keywords
The influence of the field of view and voxel size on the contrast-to-noise ratio in cone-beam computed tomography imaging
Sign Up to like & getrecommendations! Published in 2024 at "Imaging Science in Dentistry"
DOI: 10.5624/isd.20240096
Abstract: Purpose This study investigated the impact of the field of view (FOV), voxel size, and exposure parameters on the contrast-to-noise ratio (CNR) in cone-beam computed tomography (CBCT). Materials and Methods A SedentexCT phantom was scanned… read more here.
Keywords: size; field view; voxel size; contrast noise ... See more keywords