Výsledky vyhledávání - "Raoul M. S. Joemai"

Low contrast detectability performance of model observers based on CT phantom images: kVp influence

Autor: Jacob Geleijns, Raoul M. S. Joemai, A. Calzado, Wouter J. H. Veldkamp, I. Hernandez-Giron

Publikováno v: Physica Medica, 31(7), 798-807

This paper studies low contrast detectability (LCD) performance of two model observers in CT phantom images acquired at different kVp levels and compares the results with humans in a 2-alternative forced choice experiment (2-AFC). Images of the Catph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45e4c3e397cc6a30651c365f68a0dfd1
https://doi.org/10.1016/j.ejmp.2015.04.012

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A Survey of Radiation Doses in CT Urography Before and After Implementation of Iterative Reconstruction

Autor: Aart J. van der Molen, Jacob Geleijns, Razvan L. Miclea, Raoul M. S. Joemai

Publikováno v: American Journal of Roentgenology, 205(3), 572-577

The purpose of this study was to survey the radiation dose used in CT urography (CTU) in routine clinical practice, both before and after implementation of a scanning protocol that uses iterative reconstruction (Adaptive Iterative Dose Reduction 3D [

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ac4ed308ff44b057ca757cf57d1f917
https://doi.org/10.2214/ajr.14.13862

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Monte Carlo simulation of the dose distribution of ICRP adult reference computational phantoms for acquisitions with a 320 detector-row cone-beam CT scanner

Autor: M. Salvadó, Maria Cros, Raoul M. S. Joemai, A. Calzado, Jacob Geleijns

Publikováno v: Physica Medica, 31(5), 452-462

Purpose The purpose of this study was to develop and validate a Monte Carlo (MC) simulation tool for patient dose assessment for a 320 detector-row CT scanner, based on the recommendations of International Commission on Radiological Protection (ICRP)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa5c3d8e53cf819831044af007b72cd
https://doi.org/10.1016/j.ejmp.2015.04.007

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Cone-Beam CT Versus Multi-slice CT Systems for Postoperative Imaging of Cochlear Implantation—A Phantom Study on Image Quality and Radiation Exposure Using Human Temporal Bones

Autor: Jacob Geleijns, Berit M. Verbist, Thomas J.J. Maal, Raoul M. S. Joemai, Emmanuel A. M. Mylanus, Henricus J Theunisse

Publikováno v: Otology and Neurotology, 36(4), 592-599
Otology & Neurotology, 36, 592-599
Otology & Neurotology, 36, 4, pp. 592-599

Hypothesis Image quality of low-dose multi-slice computed tomography (MSCT) after cochlear implantation is comparable to that of cone-beam computed tomography (CBCT). Background CBCT has been described as a low-dose alternative with superior image qu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad57e304702003c5c43ba1d648c0e798
https://doi.org/10.1097/mao.0000000000000673

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Assessment of structural similarity in CT using filtered backprojection and iterative reconstruction: a phantom study with 3D printed lung vessels

Autor: Raoul M. S. Joemai, Jacob Geleijns

Publikováno v: British Journal of Radiology, 90(1079)

To compare the performance of three generations of CT reconstruction techniques using structural similarity (SSIM) as a measure of image quality for CT scans of a chest phantom with 3D printed lung vessels.CT images of the chest phantom were acquired

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a71e2c9c58cc557b4658e094ee275937
https://europepmc.org/articles/PMC5963378/

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SimDoseCT: dose reporting software based on Monte Carlo simulation for a 320 detector-row cone-beam CT scanner and ICRP computational adult phantoms

Autor: Maria Cros, M. Salvadó, Diego Molina, Raoul M. S. Joemai, Jacob Geleijns

Publikováno v: Physics in Medicine and Biology, 62(15), 6304-6321

This study aims to develop and test software for assessing and reporting doses for standard patients undergoing computed tomography (CT) examinations in a 320 detector-row cone-beam scanner. The software, called SimDoseCT, is based on the Monte Carlo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c0ba650de820cd72db2ef236efbdf84
https://pubmed.ncbi.nlm.nih.gov/28590940

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SimDoseCT: Dose reporting software based on Monte Carlo simulation for a 320 detector-row cone-beam CT scanner and ICRP computational adult phantoms

Autor: Maria Cros, Raoul M S Joemai, Jacob Geleijns, Diego Molina, Marçal Salvadó

Publikováno v: Physics in Medicine and Biology
Repositori Institucional de la Universitat Rovira i Virgili
Consejo Superior de Investigaciones Científicas (CSIC)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::cf45e6ae323c2eb4f38ed3906e6e6539
http://hdl.handle.net/20.500.11797/PC2955

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Additional Diagnostic Value of Integrated Analysis of Cardiac CTA and SPECT MPI Using the SMARTVis System in Patients with Suspected Coronary Artery Disease

Autor: Wiro J. Niessen, Rahil Shahzad, Boudewijn P. F. Lelieveldt, Hortense A. Kirisli, Michiel A. de Graaf, Lucas J. van Vliet, Raoul M. S. Joemai, Robert-Jan van Geuns, Anoeshka S. Dharampal, Koen Nieman, Imad Al Younis, Theo van Walsum, Arthur J.H.A. Scholte, Vikas Gupta

Publikováno v: Journal of Nuclear Medicine, 55(1), 50-57. Society of Nuclear Medicine and Molecular Imaging
Journal of Nuclear Medicine, 55(1), 50-57

CT angiography (CTA) and SPECT myocardial perfusion imaging (MPI) are complementary imaging techniques to assess coronary artery disease (CAD). Spatial integration and combined visualization of SPECT MPI and CTA data may facilitate correlation of myo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::283f56dcb0393d094aedbf27a5bb7430
https://doi.org/10.2967/jnumed.113.119842

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Performance of longitudinal and volumetric tube current modulation in a 64-slice CT with different choices of acquisition and reconstruction parameters

Autor: Aart J. van der Molen, Jacob Geleijns, Raoul M. S. Joemai

Publikováno v: Physica Medica. 28:319-326

Aim of the study was to evaluate the performance of a tube current modulation (TCM) system ( SURE Exposure 3D). On a 64 detector-row CT scanner (Aquilion 64, Toshiba), performance of fixed tube current, longitudinal TCM, and volumetric TCM acquisitio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd22afa8d84290307e502feb9d59b7c0
https://doi.org/10.1016/j.ejmp.2011.10.005

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Metal artifact reduction for CT: Development, implementation, and clinical comparison of a generic and a scanner-specific technique

Autor: Jacob Geleijns, Paul W. de Bruin, Wouter J. H. Veldkamp, Raoul M. S. Joemai

Publikováno v: Medical Physics. 39:1125-1132

Purpose : To develop, implement, and compare two metal artifact reduction methods for CT. Methods : Two methods for metal artifact reduction were developed. The first is based on applying corrections in a Radon transformation of the CT images. The se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9af3483489892e6185110b292103abb2
https://doi.org/10.1118/1.3679863

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