نتایج جستجو برای: doppler indices

تعداد نتایج: 127376  

ژورنال: دانشور پزشکی 2009
رهگذر, سعید , مختاری‌دیزجی, دکتر منیژه , معرفت, دکتر مهدی ,

  Background & Objective : Several indices have been introduced to estimate arterial stiffness that based on changes in brachial blood pressure. But because of the error resulted by the substitution of brachial blood pressure instead of the other central arteries, such as carotid, it will be very important to present elastic parameter based on the mechanical models without any emphasis on brach...

دهدشترو, علی, شییری, الهام, غریب صالحی, محمد,

Background & Aims: Due to the high incidence of breast cancer, the use of easy, safe, noninvasive and readily available diagnostic procedures that can accurately determine the initial stages of the disease and its spread is very important. Ultrasonography as a method may be able to realize these goals and to help patients and physicians. The aim of this study was to evaluate diagnostic val...

Journal: :the journal of tehran university heart center 0
mahdi montazeri tehran heart center, tehran university of medical sciences, tehran, iran. mehrnaz rezvanfard tehran heart center, tehran university of medical sciences, tehran, iran. ali kazemisaeid tehran heart center, tehran university of medical sciences, tehran, iran. masoumeh lotfi tokaldany tehran heart center, tehran university of medical sciences, tehran, iran. azam safir mardanloo tehran heart center, tehran university of medical sciences, tehran, iran. farzad darabi tehran heart center, tehran university of medical sciences, tehran, iran.

background : left ventricular (lv) dyssynchrony is a prevalent feature in heart failure (hf) patients. the current study aimed to evaluate the prevalence of inter and intraventricular dyssynchrony in hf patients with regard to the qrs duration and etiology. methods: the available data on the tissue doppler imaging (tdi) of 230 patients with refractory hf were analyzed. the patients were divided...

Journal: :Annals of the rheumatic diseases 2005
U Fiocco F Ferro M Vezzù L Cozzi C Checchetto P Sfriso C Botsios L Ciprian G Armellin R Nardacchione A Piccoli S Todesco L Rubaltelli

OBJECTIVE To determine the effect of tumour necrosis factor alpha (TNFalpha) blockade with etanercept in refractory knee joint synovitis (KJS) in rheumatoid and psoriatic arthritis, by local and systemic disease activity assessment and combined grey scale and power Doppler ultrasonographic monitoring. METHODS 27 knees affected by rheumatoid KJS (n = 12) and psoriatic KJS (n = 8) were assessed...

Journal: :Circulation 2002
Thor Edvardsen Bernhard L Gerber Jérôme Garot David A Bluemke João A C Lima Otto A Smiseth

BACKGROUND Tissue Doppler echocardiography-derived strain rate and strain measurements (SDE) are new quantitative indices of intrinsic cardiac deformation. The aim of this study was to validate and compare these new indices of regional cardiac function to measurements of 3-dimensional myocardial strain by tagged MRI. METHODS AND RESULTS The study population included 33 healthy volunteers, 17 ...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2015
S Zeng J Zhou Q Peng L Tian G Xu Y Zhao T Wang Q Zhou

OBJECTIVES To use three-dimensional (3D) power Doppler ultrasound to investigate cerebral blood flow perfusion in fetuses with congenital heart disease (CHD). METHODS The vascularization index (VI), flow index (FI) and vascularization flow index (VFI) in the total intracranial volume and the main arterial territories (middle cerebral artery (MCA), anterior cerebral artery (ACA) and posterior ...

Journal: :iranian journal of veterinary medicine 2015
abdolrazagh rostami majid masoudifard alireza vajhi mohammad reza mokhber dezfouli ali rezakhani

background: determining the clinical significance of cardiac murmurs is widely considered in equine practice. pulmonary murmurs are commonly detected in athletic horses. echocardiography plays a leading role in assessment of these murmurs. objectives: echocardiographic evaluation of horses with pulmonary regurgitation and determining the importance of pulmonary valve murmurs. methods: a total n...

Journal: :Human reproduction 2005
Ernest Hung Yu Ng Carina Chi Wai Chan Oi Shan Tang William Shu Biu Yeung Pak Chung Ho

BACKGROUND The impact of intramural fibroids on the success of IVF treatment is controversial and the mechanisms leading to poor treatment outcomes remain unknown. We compared endometrial and subendometrial blood flow between women with and without intramural fibroids during IVF treatment. METHODS Three-dimensional (3D) ultrasound examination with power Doppler was performed on the day of ooc...

Journal: :American journal of obstetrics and gynecology 2015
Carolina Scala Amar Bhide Alessandra Familiari Giorgio Pagani Asma Khalil Aris Papageorghiou Basky Thilaganathan

OBJECTIVE The aims of this study were evaluation of the association of reduced fetal movements (RFM) and small-for-gestational-age (SGA) birth at term and to explore if fetal and maternal outcomes are different with single vs repeated episodes of RFM and normal fetal assessment test results. STUDY DESIGN This was a retrospective cohort study of all singleton pregnancies referred for RFMs at a...

Journal: :Angiology 2013
Charlotte Emler Vincenzo Jacomella Kaspar Rufibach Christoph Thalhammer Beatrice R Amann-Vesti Marc Husmann

Ankle-brachial index (ABI) assessment by Doppler is operator dependent and limited in calcified arteries. For the detection of peripheral arterial disease (PAD), we evaluated ABI and toe-finger (ToFi) pressures by infrared (IR) sensors at the digits and compared with standard Doppler (Doppler-ABI) in 100 patients with PAD and in 15 controls. Pressure indices were obtained in 86% for Doppler-ABI...

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