Results 71 to 80 of about 22,285 (261)

Evaluation of Third‐Order Motion‐Compensated Cardiac Diffusion Tensor Imaging Across Cardiac Phases Using an Ultra‐High‐Performance Clinical Scanner

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate a third‐order motion‐compensated spin echo (M3‐MCSE) sequence at multiple cardiac phases on a clinical 3 T MRI scanner with ultra‐high performance (UHP) gradients (200 mT/m), compared with stimulated echo acquisition mode (STEAM) and second‐order MCSE (M2‐MCSE) for cardiac diffusion tensor imaging (cDTI).
Ke Wen, Pedro F. Ferreira, Alberto Di Biase Oemick, Ricardo Wage, Karl P. Kunze, Fanwen Wang, Dudley J. Pennell, Andrew D. Scott, Sonia Nielles‐Vallespin   +8 more
wiley   +1 more source

Mastoid Air Cell System: Hounsfield Density by Multislice Computed Tomography [PDF]

Journal of Clinical and Diagnostic Research, 2018
Introduction: Multislice Computed Tomography (MCT) is the main radiographic examination to evaluate mastoid air cell system. Hounsfield Unit density (HU), determined by MCT is useful to evaluate mastoid pneumatization, but HU values in different genders,
Luciana Munhoz, Christyan Hiroshi Iida, Reinaldo Abdala Júnior, Ronaldo Abdala, Emiko Saito Arita   +4 more
doaj   +1 more source

Development of a synthetic phantom for the selection of optimal scanning parameters in CAD-CT colonography [PDF]

, 2006
The aim of this paper is to present the development of a synthetic phantom that can be used for the selection of optimal scanning parameters in computed tomography (CT) colonography. In this paper we attempt to evaluate the influence of the main scanning
Acar, American Cancer Society, Bartroli, Beaulieu, Brenner, Capunay, Chowdhury, Chowdhury, Cohen, Dachman, Embleton, Filippone, Fletcher, Gelder, Ghita, Hara, Hong, Hoon, Iannaccone, Jerebko, Johnson, Kiraly, Kiss, Kiss, Kiss, Laghi, Lichan, Ling, Nagel, National Cancer Institute, Nicolas Sezille, Ovidiu Ghita, Ozgun, Paik, Paik, Park, Parker, Paul F. Whelan, Power, Ransoho, Robert, Sadleir, Sato, Schrock, Sezille, Shane Foley, Sosna, Springer, Summers, Summers, Sundaram, Tarik A. Chowdhury, Taylor, Vining, Vining, Vogt, Wan, Wang, Wessling, Whiting, Winawer, Yee, Yoshida, Yoshida, Zucker   +64 more
core   +1 more source

Hemodynamic Modeling and Phase‐Adjustable Reconstruction of Hyperpolarized Cardiac 13C MRS Using 1H Cine and ECG Timing

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To deconvolve cardiac phase and hemodynamic effects in hyperpolarized (HP) [1‐13C]pyruvate and to develop a cardiac phase‐adjustable reconstruction framework. Methods Cardiac phase drift during dynamic acquisition of HP 13C MRS and its effect on dynamic signal fidelity were simulated using a digital cardiac phantom. A hemodynamic model
Sung‐Han Lin, Corey Mozingo, Crystal E. Harrison, Kelley A. Derner, Craig R. Malloy, Jae Mo Park   +5 more
wiley   +1 more source

Differences between postmortem computed tomography and conventional autopsy in a stabbing murder case

Clinics, 2014
Objective: The aim of the present work is to analyze the differences and similarities between the elements of a conventional autopsy and images obtained from postmortem computed tomography in a case of a homicide stab wound.
Talita Zerbini, Luiz Fernando Ferraz da Silva, Antonio Carlos Gonçalves Ferro, Fernando Uliana Kay, Edson Amaro Junior, Carlos Augusto Gonçalves Pasqualucci, Paulo Hilario do Nascimento Saldiva   +6 more
doaj   +1 more source

Influence of convolution filtering on coronary plaque attenuation values: observations in an ex vivo model of multislice computed tomography coronary angiography [PDF]

, 2007
Attenuation variability (measured in Hounsfield Units, HU) of human coronary plaques using multislice computed tomography (MSCT) was evaluated in an ex vivo model with increasing convolution kernels.
Filippo Cademartiri, Ludovico La Grutta, Giuseppe Runza, Alessandro Palumbo, Erica Maffei, Nico RA Mollet, Tommaso Vincenzo Bartolotta, Pamela Somers, Michiel Knaapen, Stefan Verheye, Massimo Midiri, Ronald Hamers, Nico Bruining, K Nieman, S Leschka, GL Raff, NR Mollet, MH Hoffmann, V Fuster, V Fuster, R Virmani, GS Mintz, TS Hatsukami, ZA Fayad, RM Botnar, AF Kopp, S Schroeder, S Achenbach, AW Leber, AW Leber, AW Leber, AW Leber, MJ Budoff, CR Becker, S Schroeder, F Cademartiri, TG Flohr, TR Johnson, S Suzuki, H Seifarth, TT Weert de, W Stanford, D Maintz   +42 more
core   +3 more sources

Ultrafast fMRI Detects Age‐Related Changes in Harmonics of Cardiac Pulsations in the Brain at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Aging impacts pulsatility of blood vessels in the brain, reflecting vascular health. Resolving characteristics of cardiac pulsatility requires faster acquisitions than traditional fMRI. An ultrafast fMRI method was developed and applied to sample several harmonics of cardiac pulsations at 7 T.
Charles Marchini, Dema Abdelkarim, Yuhui Chai, Monica Fabiani, Gabriele Gratton, Bradley P. Sutton   +5 more
wiley   +1 more source

A longitudinal study of radiodensity and radiographic appearance of the proximal sesamoid bones in Thoroughbred racehorses

Equine Veterinary Journal, EarlyView.
Abstract Background There are limited data on long‐term follow‐up of radiographic changes of the proximal sesamoid bones (PSBs) in Thoroughbred racehorses. The effect of training and racing on radiodensity of the PSBs in live Thoroughbreds has not been described.
Koppány Boros, Sue Dyson, Danica Pollard, Annamária Nagy   +3 more
wiley   +1 more source

Performance of the Direct Current Electric Potential Difference (DCEPD) Method for Crack Extension Measurement in Fracture Mechanics Specimens Exhibiting Split Delaminations

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This work investigates the performance of the direct current electric potential difference (DCEPD) method for measuring crack extension (∆a$$ \Delta a $$) during fracture toughness tests of ductile steels exhibiting delaminations perpendicular to the main crack plane, known as splits.
Sergio Luis Gonzalez Assias, Juan Elías Perez Ipiña, Hector Guillermo Kotik   +2 more
wiley   +1 more source

Comparative study of cone-beam computed tomography and multislice computed tomography in the radiographic evaluation of cysts and tumors of the jaws

Journal of Indian Academy of Oral Medicine and Radiology, 2014
Aim and Objectives: To assess the efficacy of cone-beam computed tomography (CBCT) in comparison with multislice-computed tomography (MSCT) in the radiographic evaluation of cysts and tumors of the jaws.
Sunil S Mishra, Shirish S Degwekar, Pankaj J Banode, Rahul R Bhowate, Mukta B Motwani, Poonam S Mishra   +5 more
doaj   +1 more source