Results 11 to 20 of about 18,723 (229)

Deep learning reconstruction enhances tophus detection in a dual-energy CT phantom study

Scientific Reports
This study aimed to compare two deep learning reconstruction (DLR) techniques (AiCE mild; AiCE strong) with two established methods—iterative reconstruction (IR) and filtered back projection (FBP)—for the detection of monosodium urate (MSU) in dual ...
Sydney Alexandra Schmolke, Torsten Diekhoff, Jürgen Mews, Karim Khayata, Maximilian Kotlyarov   +4 more
doaj   +2 more sources

A feasibility study on deep‐neural‐network‐based dose‐neutral dual‐energy digital breast tomosynthesis

, 2023
Background Diagnostic performance based on x-ray breast imaging is subject to breast density. Although digital breast tomosynthesis (DBT) is reported to outperform conventional mammography in denser breasts, mass detection and malignancy characterization
Young Jin Choi, Hoyeon Lee, Shin, Choul Woo, Seoyoung Lee, Choul Woo Shin, Seungryong Cho, Young‐Wook Choi, Wontaek Seo, Kim, Hyeongseok, Hyeongseok Kim, Choi, Young Jin, Choi, Young-Wook, Kee Hyun Kim, Seo, Wontaek, Lee, Hoyeon, Lee, Seoyoung, Kim, Kee Hyun, Cho, Seungryong, Choi, Young Wook   +18 more
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Measurement of subregional vertebral bone mineral density in vitro using lateral projection dual-energy X-ray absorptiometry: Validation with peripheral quantitative computed tomography [PDF]

, 2012
Although a strong relationship exists between areal bone mineral density (aBMD) derived from dual-energy X-ray absorptiometry (DXA) and bone strength, the predictive validity of aBMD for osteoporotic vertebral fractures remains suboptimal. The diagnostic
Kantor, S., Parkinson, Ian, Fazzalari, N., Fazzalari, Nicola, Briggs, A., Parkinson, I., Kantor, Susan, Briggs, Andrew, Perilli, E., Wrigley, Tim, Perilli, Egon, Wark, J., Wrigley, T., Wark, John   +13 more
core   +1 more source

Precision of Bone Mineral Density Measurements Around Total Ankle Replacement Using Dual Energy X-ray Absorptiometry [PDF]

, 2019
Introduction: Joint prosthesis survival is associated with the quality of surrounding bone. Dual-energy X-ray absorptiometry (DXA) is capable to evaluate areal bone mineral density (BMD) around different prosthetic implants, but no studies evaluated ...
Albano, Domenico, Usuelli, Federico Giuseppe, Sconfienza, Luca Maria, Gitto, Salvatore, Cortese, Maria Cristina, Messina, Carmelo, Di Silvestri, Claudia Angela, Maccario, Camilla   +7 more
core   +2 more sources

A Hybrid Approach Combining Dual-Energy and Inpainting Methods for Metal Artifact Reduction in Dentomaxillofacial CBCT: A Proof-of-Concept Phantom Study. [PDF]

Ann Biomed Eng
Purpose: Image inaccuracies and distortions are amplified in cone-beam computed tomography (CBCT), with beam hardening and metal artifacts being particularly pronounced, thereby complicating diagnostic interpretation.
Jayakody D, Agrawal H, Räinä E, Sipola A, Näpänkangas R, Ylisiurua S, Nieminen MT, Brix M.   +7 more
europepmc   +2 more sources

Dual Energy Algorithms and Post Processing Techniques

, 2010
Recently, dual energy CT has been routinely used in clinical practice for the applications of bone removal, kidney stone composition differentiation, gout identification, and generating virtual non-contrast images.
Cynthia H. McCollough, Leng, S., Yu, L., Schmidt, B., Bernhard Schmidt, Lifeng Yu, Xin Liu, Liu, Xin, Shuai Leng, McCollough, C. H.   +9 more
core   +1 more source

Phantom task‐based image quality assessment of three generations of rapid kV‐switching dual‐energy CT systems on virtual monoenergetic images

, 2022
International audiencePurpose: To compare the spectral performance of three rapid kV switching dual-energy CT (DECT) systems on virtual monoenergetic images (VMIs) at low-energy levels on abdominal imaging.Methods: A multi-energy phantom was scanned on ...
Greffier, J., Viry, A., Viry, Anaïs, Maeliss Loisy, Greffier, Joël, Fabien de Oliveira, Loisy, Maeliss, Dabli, D., Frandon, J., Djamel Dabli, Beregi, Jean Paul, Yves Barbotteau, Julien Frandon, Dabli, Djamel, Beregi, J.P., Joël Greffier, Frandon, Julien, de Oliveira, Fabien, Anaïs Viry, Jean Paul Beregi, Barbotteau, Y., Loisy, M., Barbotteau, Yves, de Oliveira, F.   +23 more
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Utility of Dual-Energy Computed Tomography in Clinical Conundra

Diagnostics
Advancing medical technology revolutionizes our ability to diagnose various disease processes. Conventional Single-Energy Computed Tomography (SECT) has multiple inherent limitations for providing definite diagnoses in certain clinical contexts.
Ahmad Abu-Omar, Nicolas Murray, Ismail T. Ali, Faisal Khosa, Sarah Barrett, Adnan Sheikh, Savvas Nicolaou, Stefania Tamburrini, Francesca Iacobellis, Giacomo Sica, Vincenza Granata, Luca Saba, Salvatore Masala, Mariano Scaglione   +13 more
doaj   +1 more source

Tube voltage-independent coronary calcium scoring on a first-generation dual-source photon-counting CT-a proof-of-principle phantom study

, 2022
To evaluate the accuracy of coronary artery calcium (CAC) scoring at various tube voltages and different monoenergetic image reconstructions on a first-generation dual-source photon-counting detector CT (PCD-CT).
Manka, R, Allmendinger, T, Higashigaito, K, Mergen, V, Euler, A, Alkadhi, H, Eberhard, Matthias; https://orcid.org/   +6 more
core   +1 more source

A Feasibility Study of Low-Dose Single-Scan Dual-Energy Cone-Beam CT in Many-View Under-Sampling Framework

, 2017
A single-scan dual-energy low-dose cone-beam CT (CBCT) imaging technique that exploits a multi-slit filter is proposed in this paper. The multi-slit filter installed between the x-ray source and the scanned object is reciprocated during a scan. The x-ray
Lee, Donghyeon, Taewon Lee, Jiseoc Lee, Donghyeon Lee, Soh, Jeongtae, Kim, Changhwan, Seungryong Cho, Lee, Taewon, Lee, Yeon Ju, Hyoyi Kim, Miran Park, Jeongtae Soh, Kim, Hoyi, Changhwan Kim, Lee, Jiseoc, Yeon Ju Lee, Park, Miran, Cho, Seungryong   +17 more
core   +1 more source