نتایج جستجو برای: tissue doppler study

تعداد نتایج: 4611933  

Journal: :Laryngo-rhino-otologie 2022

Introduction The free and pedicled flap reconstruction for defects of the head neck demands a postoperative monitoring routine. This task is usually performed by visual examination flap, doppler sonography pinpricking. In case impaired perfusion surgical revision only way to prevent necrosis. Hyperspectral imaging non-invasive optical method that can be used tissue classification visualize oxyg...

Journal: :Clinical science 2003
Sherif F Nagueh

Echocardiography is an invaluable tool for the routine evaluation of patients with congestive heart failure. A number of Doppler modalities are now available. In this comment, the haemodynamic determinants and the clinical application of the more recent indices of left ventricular relaxation, namely tissue Doppler imaging of the mitral annulus and the flow propagation velocity by colour M-mode,...

Journal: :Turk pediatri arsivi 2014
Derya Çimen Sevim Karaaslan

AIM Transient cardiac hypertrophy occurs in infants of diabetic mothers. The effect of this state on cardiac functions was investigated with a case-control study using tissue Doppler technique. MATERIAL AND METHODS In this study, right and left ventricle systolic and diastolic functions of 45 term babies of diabetic mothers and 50 healthy term newborns were examined using tissue Doppler echoc...

Journal: :Journal of the College of Physicians and Surgeons--Pakistan : JCPSP 2017
Uzma Mumtaz Ahmed Farhan Muhammad Amjad Chaudhry Madiha Mumtaz

OBJECTIVE To evaluate the diagnostic assessment of enlarged lymph nodes, based on its perfusion pattern by taking tissue diagnosis as gold standard. STUDY DESIGN Analytical study. PLACE AND DURATION OF STUDY Departments of Radiology and Pathology, PIMS Hospital, Islamabad, from February to May 2016. METHODOLOGY Color sonography of patients with clinically, palpable cervical lymph nodes we...

Journal: :Circulation. Heart failure 2010
Chinami Miyazaki Margaret M Redfield Brian D Powell Grace M Lin Regina M Herges David O Hodge Lyle J Olson David L Hayes Raul E Espinosa Robert F Rea Charles J Bruce Susan M Nelson Fletcher A Miller Jae K Oh

BACKGROUND Whether mechanical dyssynchrony indices predict reverse remodeling (RR) or clinical response to cardiac resynchronization therapy (CRT) remains controversial. This prospective study evaluated whether echocardiographic dyssynchrony indices predict RR or clinical response after CRT. METHODS AND RESULTS Of 184 patients with heart failure with anticipated CRT who were prospectively enr...

2012
Heike H. Müller Lars Ptaszynski Kerstin Schlott Christina Debbeler Marco Bever Stefan Koinzer Reginald Birngruber Ralf Brinkmann Gereon Hüttmann

Visualizing retinal photocoagulation by real-time OCT measurements may considerably improve the understanding of thermally induced tissue changes and might enable a better reproducibility of the ocular laser treatment. High speed Doppler OCT with 860 frames per second imaged tissue changes in the fundus of enucleated porcine eyes during laser irradiation. Tissue motion, measured by Doppler OCT ...

Ahmad Tamadoni, Mosatafa Hojati, Rozita Jalalian, Hasan Mahmoodi Nesheli, Mehrdad Saravi, Saeed Ramezani,

Background: Iron-mediated cardiomyopathy is the main complication of thalassemia major (TM) patients. Therefore, there is an important clinical need in the early diagnosis and risk stratification of patients. The aim of this study was to evaluate the efficacy of tissue doppler imaging (TDI) to study cardiac iron overload in patients with TM using T2* magnetic resonance (MR) as the gold-standard...

Journal: :Circulation. Cardiovascular imaging 2009
Arumugam Narayanan Gerard P Aurigemma Marcello Chinali Jeffrey C Hill Theo E Meyer Dennis A Tighe

BACKGROUND We hypothesized that abnormalities in regional systolic strain (epsilon) might be present among hypertensive subjects with normal ejection fraction, and, if present, could be used to identify patients at high risk for heart failure. The aim of the current case-control study was to use speckle tracking imaging to identify subclinical global and regional systolic function abnormalities...

Journal: :Journal of the American College of Cardiology 2000
K Isaaz

In current Doppler blood flow studies, the low Doppler shift frequencies of high energy generated by the wall motion are purposely filtered out. Since these low Doppler shift frequencies are produced by the contracting myocardium, they are expected to contain potential information for the assessment of myocardial properties. Early descriptions of directional pulsed Doppler tissue imaging (DTI) ...

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