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  1. 1781
    “…The traditional approach for measuring myelin-associated water with quantitative magnetic resonance imaging (MRI) uses multi-echo T(2) relaxation data to calculate the myelin water fraction (MWF). …”
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    Comparison of multi echo T(2) relaxation and steady state approaches for myelin imaging in the central nervous system
  2. 1782
    “…In this work, activation profiles in response to the same visual stimulus are compared at 1.5 T, 3 T and 7 T using a multi-echo, gradient echo (GE) FLASH sequence, with a 0.75 mm isotropic voxel size and the cortical integration approach. …”
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    An in-vivo study of BOLD laminar responses as a function of echo time and static magnetic field strength
  3. 1783
    “…This study first characterized the reproducibility of metrics derived from the complex multi-echo gradient-recalled echo (mGRE) signal across the corpus callosum in healthy participants, finding highest reproducibility in the posterior callosal segment. …”
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    Multi-compartment analysis of the complex gradient-echo signal quantifies myelin breakdown in premanifest Huntington's disease
  4. 1784
    “…MATERIALS AND METHODS: 15 healthy subjects (M/F: 9/6; age: 21–62) were scanned at 3T targeting the sciatic nerve at the thigh bilaterally, using a dual echo variable echo time (vTE) sequence (based on a spoiled gradient echo acquisition) with echo times of 0.98/5.37 ms. …”
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    Variable echo time imaging for detecting the short T2* components of the sciatic nerve: a validation study
  5. 1785
    “…OBJECTIVES: With increasing neuroimaging applications of contemporary three-dimensional T(1) W fast spin echo (3D T1W FSE) sequences, it was aimed to reappraise the normal patterns of skull base facial nerve gadolinium enhancement. …”
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    Enhancement patterns of the normal facial nerve on three-dimensional T1W fast spin echo MRI
  6. 1786
    “…Conclusively, according to kinematics behavior, the turtle motion path is modeled using the Echo State Network (ESN) method, one of the reservoir computing techniques. …”
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    Modelling and implementation of soft bio-mimetic turtle using echo state network and soft pneumatic actuators
  7. 1787
    “…This research presents a new technique using pulse echo ultrasound for sizing foreign objects within carbon fiber laminates. …”
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    Improvement in the Quantification of Foreign Object Defects in Carbon Fiber Laminates Using Immersion Pulse-Echo Ultrasound
  8. 1788
    “…OBJECTIVES: To evaluate the common carotid stiffness via echo tracking in patients with hypertension and acute aortic dissection (AD) and to investigate the independent predictors for the occurrence of AD in hypertensive (HP) patients. …”
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    Evaluation of Common Carotid Stiffness via Echo Tracking in Hypertensive Patients Complicated by Acute Aortic Dissection
  9. 1789
    “…VAFRACT trial evaluates the additional benefit of LVAD echo‐guided optimization (EO) on functional capacity (FC), measured by cardiopulmonary exercise test (CPET), and quality of life (QoL). …”
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    Effects of echo‐optimization of left ventricular assist devices on functional capacity, a randomized controlled trial
  10. 1790
    “…The idea is based on simple cross-polarization ratio analysis of the optical echo received as a result of laser backscattering on the detected object. …”
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    Distinguishing Drones from Birds in a UAV Searching Laser Scanner Based on Echo Depolarization Measurement
  11. 1791
    “…We found that the prevalence of the Echo‐LVH was 11% while ECG‐LVH ranged from 3% to 27%. …”
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    The association between ECG criteria and Echo criteria for left ventricular hypertrophy in a general Chinese population
  12. 1792
    “…To explore sensitive techniques for surfaces with small roughness, nonlinear ultrasonic measurement in through-transmission and pulse-echo modes was proposed and studied based on an effective unit-cell finite element (FE) model. …”
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    Numerical Study on Surface Roughness Measurement Based on Nonlinear Ultrasonics in Through-Transmission and Pulse-Echo Modes
  13. 1793
    “…Background: The predictive power of the CHADS(2) and CHA(2)DS(2)-VASc scores for the presence of Left atrial thrombus (LAT)/ spontaneous echo contrast (SEC) in non-valvular atrial fibrillation (NVAF) is modest. …”
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    Nomogram to Predict Left Atrial Thrombus or Spontaneous Echo Contrast in Patients With Non-valvular Atrial Fibrillation
  14. 1794
    “…Meanwhile, chi square tests were added to compare the degree of echo chamber effect in retweeting and commenting. …”
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    The echo chamber effect of rumor rebuttal behavior of users in the early stage of COVID-19 epidemic in China
  15. 1795
    por Scatularo, Cristhian E.
    Publicado 2021
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    Análisis y aplicabilidad del score PESI-ECHO en pacientes con tromboembolia pulmonar aguda
  16. 1796
    “…An effective Bloch vector representation is developed and thereby it is demonstrated that the destructive photon echo stems from a destructive interference of successive repetitions of the heterodyning experiment.…”
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    Destructive Photon Echo Formation in Six‐Wave Mixing Signals of a MoSe(2) Monolayer
  17. 1797
    “…We aimed to compare quantitative and indirect echo-Doppler indices to quantitative cardiac magnetic resonance (CMR) parameters in asymptomatic chronic severe AR. …”
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    Assessment of Asymptomatic Severe Aortic Regurgitation by Doppler-Derived Echo Indices: Comparison with Magnetic Resonance Quantification
  18. 1798
    “…Community mental health providers (N = 51) participated in the 6-month Project ECHO Autism including mental health–focused didactics and provider case presentations. …”
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    Mental health Project ECHO Autism: Increasing access to community mental health services for autistic individuals
  19. 1799
    “…Ventricle surface electric signal, blood pressure and echo image were acquired 15 min after the pacemaker was implanted. …”
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    Optimization of Left Ventricle Pace Maker Location Using Echo-Based Fluid-Structure Interaction Models
  20. 1800
    “…From the pre-operative MRI, including three-dimensional turbo spin-echo sequences using T1WI and T2WI, we assessed both thrombus configuration and arterial anatomy at the MCA bifurcations. …”
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    3D Turbo Spin-echo MRI-based Mechanical Thrombectomy at Middle Cerebral Artery Bifurcations
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