Results 151 to 160 of about 87,413 (321)

On‐Scanner Correction of Gradient Nonlinearity Bias for Accurate Assessment of Diffusion Heterogeneity Across Bone Sites in Myelofibrosis Patients

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To improve accuracy of apparent diffusion coefficient (ADC) measurement across different bone‐marrow (BM) sites for myelofibrosis (MF) patients. Methods Vendor‐provided ADC gradient nonlinearity correction (GNC) was implemented for 41 MF study subjects on a 3T clinical scanner.
Dariya Malyarenko, Brian D. Ross, Johannes M. Peeters, Ajit Devaraj, Ramin Jafari, Humera Tariq, Kristen M. Pettit, Moshe Talpaz, Gary D. Luker, Thomas L. Chenevert   +9 more
wiley   +1 more source

Limits of Agreement Based on Transformed Measurements

Stats
Method comparison studies are typically analyzed using limits of agreement (LoAs). The standard Bland–Altman approach estimates LoAs under the assumption that the differences between methods follow a normal distribution.
Erik Thorlund Parner
doaj   +1 more source

Validity and reliability of telephone administration of the patient-specific functional scale for the assessment of recovery from snakebite envenomation [PDF]

, 2019
OBJECTIVES: Although more than 1.8 million people survive snakebite envenomation each year, their recovery is understudied. Obtaining long-term follow-up is challenging in both high- and low-resource settings. The Patient-Specific Functional Scale (PSFS)
et al.,, Mullins, Michael E, Theophanous, Rebecca G   +2 more
core   +1 more source

Quantitative Comparison of Multi‐Echo Spin Echo and Multi‐Echo Gradient Echo Myelin Water Imaging in a Panel of Mbp Enhancer‐Edited Mouse Lines

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate the correspondence between myelin water fraction (MWF) estimates derived from multi‐echo spin echo (MESE) and multi‐echo gradient echo (MGRE) imaging in fixed mouse brain tissue, using a panel of myelin basic protein (Mbp) enhancer‐edited mouse lines exhibiting graded hypomyelination.
Vladimir Grouza, Yawen Shi, Sean Goldfarb, Klaudia M. Bednarz, Isabella Gomez, Marius Tuznik, Zhe Wu, Hooman Bagheri, Katherine A. Siminovitch, Alan C. Peterson, Thomas Stroh, David A. Rudko   +11 more
wiley   +1 more source

Comparison of self-reported measure of sitting time (IPAQ) with objective measurement (activPAL) [PDF]

, 2014
Chastin, Sebastien, Culhane, Brendan, Dall, Philippa   +2 more
core   +2 more sources

Assessment of Optimal T1/T2‐Weighted Combinations for Myelin Sensitivity: Effects of Echo Time and Exponents

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The aim of this study is to improve the traditional T1‐weighted (T1w) over T2‐weighted (T2w) ratio as a proxy for myelin by investigating the optimal T2w TE and combination of exponent‐weighted T1w and T2w images (T1wx1/T2wx2$$ \mathrm{T}1{\mathrm{w}}^{x_1}/\mathrm{T}2{\mathrm{w}}^{x_2} $$).
Simone Monachino, Gerhard S. Drenthen, Lis J. M. van den Boogaard, Marcel Breeuwer, Catarina Dinis Fernandes, Oliver H. H. Gerlach, Svitlana Zinger, Jacobus F. A. Jansen   +7 more
wiley   +1 more source

Ultrafast Blood T1 Measurement Using Golden Angle Rotated Spiral k‐t Sparse Parallel Imaging (GASSP): Evaluations in Both Pre‐ and Post‐Contrast Conditions

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Blood T1 is a key parameter for hemodynamic quantification in both non‐contrast‐ and contrast‐enhanced imaging. Individual vessel T1 has been measured using a modified Look–Locker scheme with multi‐shot EPI or FLASH in high spatial resolution, requiring ∼1 min.
Zechen Xu, Feng Xu, Qin Qin, Dan Zhu
wiley   +1 more source

Erythrocyte Sedimentation Rate Measurement Using as a Rapid Alternative to the Westergren Method

Emergency, 2015
Introduction: Erythrocyte sedimentation rate (ESR) remains as one of the most reliable tests in clinical practices. Yet its use is time consuming and requires a large blood sample.
Reza Hashemi, Alireza Majidi, Hassan Motamed, Afshin Amini, Fares Najari, Ali Tabatabaey   +5 more
doaj  

Automated Coregistered Segmentation for Volumetric Analysis of Multiparametric Renal MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aims to develop and evaluate a fully automated deep learning‐driven postprocessing pipeline for multiparametric renal MRI, enabling accurate kidney alignment, segmentation, and quantitative feature extraction within a single efficient workflow. Methods Our method has three main stages.
Aya Ghoul, Cecilia Liang, Isabelle Loster, Lavanya Umapathy, Bernd Kühn, Petros Martirosian, Ferdinand Seith, Sergios Gatidis, Thomas Küstner   +8 more
wiley   +1 more source

Confiabilidade teste-reteste do Índice de Capacidade para o Trabalho (ICT) em trabalhadores de enfermagem Test-retest reliability of the Work Ability Index (WAI) in nursing workers

Revista Brasileira de Epidemiologia, 2013
Este artigo avalia a confiabilidade teste-reteste do Índice de Capacidade para o Trabalho (ICT) em trabalhadores de enfermagem. Foi aplicado questionário autopreenchível duas vezes a um grupo de 80 trabalhadores de enfermagem (enfermeiros,
Sérgio Henrique Almeida da Silva Junior, Ana Glória Godoi Vasconcelos, Rosane Harter Griep, Lúcia Rotenberg   +3 more
doaj