Results 81 to 90 of about 144,156 (202)

Effect of arrhythmias on tissue Doppler velocities

open access: yesJournal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2018
Sa wave of tissue Doppler imaging correlates with ventricular systole (QRS-T of electrocardiogram). Ea wave correlates with ventricular filling in early diastole. Aa wave correlates with ventricular filling during atrial contraction and correlates with P
Sita Ram Mittal
doaj   +1 more source

ASSESSMENT OF LEFT VENTRICULAR FUNCTION USING TISSUE DOPPLER IMAGING

open access: yesZdravniški Vestnik, 2004
Background. Objective evidence of cardiac dysfunction is one of the diagnostic criteria for heart failure. It is often hard to assess systolic function and assessing diastolic dysfunction is even harder because there are no generally accepted ...
Martin Tretjak, Mirta Koželj
doaj  

Tissue Doppler and strain imaging: anything left in the echo-lab?

open access: yesCardiovascular Ultrasound, 2008
Medline research indicates that an increasing number of manuscripts have been published in the last decade claiming, the feasibility and the potential clinical role of tissue Doppler and strain/strain rate imaging.
Citro Rodolfo   +4 more
doaj   +1 more source

Time-of-flight resolved light field fluctuations reveal deep human tissue physiology. [PDF]

open access: yes, 2020
Red blood cells (RBCs) transport oxygen to tissues and remove carbon dioxide. Diffuse optical flowmetry (DOF) assesses deep tissue RBC dynamics by measuring coherent fluctuations of multiply scattered near-infrared light intensity.
Du Le, VN   +4 more
core  

Functional assessment of fetal heart: Normative data for tissue doppler indices and other echocardiographic parameters for Indian population

open access: yesJournal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2017
Objective: To establish normative data for tissue Doppler indices and other parameters for ventricular function assessment in fetal imaging for the Indian population and to assess the variation of these parameters with gestational age.
Anupama Nair, Sitaraman Radhakrishnan
doaj   +1 more source

High-Spatial Resolution Laser Doppler Blood Flow Imaging [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +4 more
core  

Evaluation of Early Alterations in Transmitral Diastolic Flow and Tissue Doppler Findings of the Septal and Lattral Segments of Left Ventricles in Early Period after Coronary Angioplasty

open access: yesمجله دانشکده پزشکی اصفهان, 2011
Background: We aimed to evaluate subepicardial and subendocardial left ventricular (LV) functions in patients with single coronary artery lesion at early stage after percutaneous coronary intervention (PCI).
Hasan Shemirani   +2 more
doaj  

Visualization of Minute Mechanical-Excitation/Relaxation Wave-front Propagation in Myocardial Tissue [PDF]

open access: yes, 2010
Unlike the case of skeletal muscle, the direction of myocardial contraction does not coincide with the direction of work necessary to eject the intraventricular blood, contributing to great complexity of the wall deformation sequence of cardiac ...
Hiroshi Kanai, Motonao Tanaka
core   +1 more source

Monitoring high-intensity focused ultrasound thermal therapy by ultrasound doppler imaging using twinkling artifact.

open access: yesPLoS ONE
High-Intensity Focused Ultrasound (HIFU) is a non-invasive therapeutic modality that uses high-energy acoustic waves to thermally coagulate tissue at the focal region.
Amirhossein Jamallivani   +2 more
doaj   +1 more source

Biophotonics Modalities for High-Resolution Imaging of Microcirculatory Tissue Beds Using Endogenous Contrast: A Review on Present Scenario and Prospects

open access: yesInternational Journal of Optics, 2011
The microcirculation is a complex system, and the visualization of microcirculation has great significance in improving our understanding of pathophysiological processes in various disease conditions, in both clinical and fundamental studies.
Hrebesh M. Subhash
doaj   +1 more source

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