نتایج جستجو برای: doppler

تعداد نتایج: 45904  

Journal: :international journal of fertility and sterility 0
ali irfan guzel selcuk erkılınc irfan ozer aytekin tokmak ayse kurt sahin mustafa ugur

background: we conducted this prospective study to evaluate the prognostic significance of uterine and ovarian artery doppler velocimetry in clomiphene citrate (cc) cycles. materials and methods: a total of 80 patients with unexplained infertility were given 100 mg/day of cc from day 3 to day 7 of their cycles in this current prospective study. on cycle day 3, before administration of cc, each ...

Journal: :رادار 0
محسن عسکری بیژن عباسی آرند

because of having good performance in cancelling the clutter echoes, pulsed-doppler radar is the best solution in some applications. in this paper a new algorithm for signal design and signal processing in high prf radar is developed. the robust chinese remainder theorem is the basis for estimating the unambiguous ranges in the proposed algorithm. two high prf pulsed-doppler radars are designed...

اخلاق پور , شهرام, بخت آور , خدیجه, سخایی , سیدیعقوب,

Background and purpose: Doppler sonography is a noninvasive diagnostic procedure with no side effect witch is cost effective and the results are rapidly available. Two indices are explained in the field of Doppler sonographic hemodynamic evaluation, PÏ* and RÏ**, Âbnormal ranges are PÏ ≥ 1.8 and RÏ ≥ 0.7 . Ïn previous studies average PÏ in normal conditions was 1.5 and in rejected trans...

Background: Deep vein thrombosis (DVT) is one of the main causes of hospital mortality which can easily be prevented. Three para clinical methods are used to confirm the diagnosis of DVT, which include D-dimer test, venous color Doppler ultrasonography and venography. This study has focused on the prevalence of confirmed DVT in lower limbs based on venous color Doppler ultrason...

Journal: :Japanese heart journal 1975
K Ishikawa H Buggs R Sarma H Tillmanns J M Fauvel J H Getzen J L Johnson R J Bing

An attempt was made to derive a useful noninvasive index to evalute a change in myocardial contractile state using transcutaneous Doppler flow-velocity curve from the carotid artery. In 5 mongrel dogs and in 43 patients with various heart disease, Doppler flow velocity curves were obtained from the ascending aorta intravascularly using a Doppler catheter and/or from carotid artery transcutaneou...

Journal: :journal of dental research, dental clinics, dental prospects 0
behrooz davachi mahrokh imanimoghaddam professor of oral and maxillofacial radiology, oral and maxillofacial diseases research center, mashhad university of medical sciences, mashhad, iran mohamad reza majidi ahmad sahebalam masoomeh johari adineh javadian langaroodi

background and aims. although salivary gland tumors are not very common, early diagnosis and treatment is crucial because of their proximity to vital organs, and therefore, determining the efficacy of new imaging procedures becomes important. this study aimed to evaluate the efficacy of magnetic resonance imaging (mri) and color doppler ultrasonography parameters in the diagnosis and differenti...

Objective- The aim of this study was to test the repeatability, the variability, and to establish the reference values of PW measurements in healthy Markhoz goats.Design- Retrospective study.Animals- 20 female Markhoz goats.Procedure- Using a standardized PW Doppler echocardiographic protocol, 20healthy adult unsedated female Markhoz goats were investigated three times at one-...

Objective- The purpose of this study was to investigate the feasibility of performing echocardiography in apparently healthy pigeons, and measurement of the quantitative cardiac indices using B-mode and Doppler techniques. Design- Experimental study Animals- Ten apparently healthy pigeons Procedures- Echocardi...

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