نتایج جستجو برای: spectral doppler

تعداد نتایج: 208190  

Journal: :acta medica iranica 0
h. mazaher h. sharifian s. sharifkashany g. hanafi

vertebrobasilar insufficiency is the cause of cerebrovascular accidents in 20% of cases. there are few reports regarding spectral doppler indices (sdis) of vertebral arteries (vas) normal blood flow. the objective of this study was to provide basic reference data about sdis of vas normal blood flow separately and in comparison with internal carotid arteries (icas) and common carotid arteries (c...

Journal: :تحقیقات دامپزشکی 0
مجید مسعودی فرد گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران علیرضا وجهی گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران سارنگ سروری گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران سمیه اسدزاده منجیلی دانش آموخته دانشکده دامپزشکی دانشگاه تهران

doppler ultrasound can provide important information about vascular problems through the analysis of blood flow wave-form. the purpose of this study was obtaining the normal images of color doppler and estimation of blood flow velocity parameters of femoral artery in rabbits. left and right femoral arteries of 8 healthy adult new zealand rabbits were evaluated. color and spectral doppler images...

Journal: :middle east journal of cancer 0
rahul gandhi department of oral medicine and radiology, saraswati-dhanwantari dental college and hospital and post-graduate research institute, parbhani, maharashtra, india abhishek singh nayyar department of oral medicine and radiology, saraswati-dhanwantari dental college and hospital and post-graduate research institute, parbhani, maharashtra, india rahul bhowate department of oral medicine and radiology, sharad pawar dental college and hospital, wardha, maharashtra, india sweta gandhi department of public health dentistry, lata mangeshkar dental college and hospital, nagpur, maharashtra, india girish dongerwar department of oral medicine and radiology, saraswati-dhanwantari dental college and hospital and post-graduate research institute, parbhani, maharashtra, india

background: although color doppler ultrasonography (cdus) is useful in the diagnosis of various diseases of the head and neck, flow signals in oral malignant masses are less studied; hence the present study assesses the usefulness of color doppler ultrasonography in quantifying oral squamous cell carcinoma (oscc) vascularization. in addition, we determine the hemodynamic parameters by spectral ...

Journal: :the journal of tehran university heart center 0
hassan moladoust department of medical physics, tarbiat modares university, tehran, iran. manijhe mokhtari-dizaji department of medical physics, tarbiat modares university, tehran, iran. zahra ojaghi-haghighi shaheed rajaie heart center, iran university of medical sciences, tehran, iran.

background: the recent developments in tissue doppler imaging (tdi) now more than ever permit the quantification of the myocardial function. in the current systems, tissue tracking or displacement curves are generated from color tissue doppler data through the instantaneous temporal integral of velocity-time curves. methods: the purpose of the present study was to assess regional myocardial dis...

Journal: :acta medica iranica 0
h. mazaher sh. sharifkashani h. sharifian

detection of lymph nodes (lns) involvement by various pathological processes has great therapeutic and prognostic implications. the purpose of this study was to evaluate the usefulness and accuracy of triplex sonography (gray scale, color mapping and spectral doppler) in differentiating benign from malignant cervical lns. we used triplex sonography to evaluate 120 lns in 50 patients. the gray s...

Journal: :RadioGraphics 1994

Background Ultrasound is the first line modality in evaluation of pelvic masses in female patients. It is helpful in detection of masses and also in determining origin of them. Tissue characterization is possible with gray scale but Doppler study is quite necessary and considers as complimentary method. Most of the time, it should be performed in vaginal US exam. Existence of vascularity and al...

Ali Kavari Alireza Vajhi, Majid Masoudifard, Mohammad Hadi Borhani Haghighi

Objective- Obtaining the normal images ofcolor doppler and estimation ofblood flow velocity parametersof femoral and axillary arteries in dog.Design- Descriptive studyAnimals- 7 healthy adult mixed-breed dogs, weighing 14.3 ± 2.8 kg (mean ± SD).Proceudure- Left and right femoral and axillary arteries of hind and forelimbs were evaluated. Colorand spectral doppler images ofthe each artery were o...

Propagation of radio occultation (RO) signals through the lower troposphere results in high phase acceleration and low signal to noise ratio signal. The excess Doppler estimation accuracy in lower troposphere is very important in receiving RO signals which can be estimated by sliding window spectral analysis. To do this, various frequency estimation methods such as MUSIC and ESPRIT can be adopt...

Journal: :hepatitis monthly 0
fu-shun pan department of medical ultrasonic, the first affiliated hospital, institute of diagnostic and interventional ultrasound, sun yat-sen university, guangzhou, china ming xu department of medical ultrasonic, the first affiliated hospital, institute of diagnostic and interventional ultrasound, sun yat-sen university, guangzhou, china wei wang department of medical ultrasonic, the first affiliated hospital, institute of diagnostic and interventional ultrasound, sun yat-sen university, guangzhou, china lu-yao zhou department of medical ultrasonic, the first affiliated hospital, institute of diagnostic and interventional ultrasound, sun yat-sen university, guangzhou, china xiao-yan xie department of medical ultrasonic, the first affiliated hospital, institute of diagnostic and interventional ultrasound, sun yat-sen university, guangzhou, china; department of medical ultrasonic, the first affiliated hospital, institute of diagnostic and interventional ultrasound, sun yat-sen university, 58 zhong shan road 2, guangzhou 510080, china. tel: +86-2087765183, fax: +86-2087765183

conclusions the clinical features are effective indicators for distinguishing ihh from hbl, and the spectral doppler may be a useful adjunct parameter for differential diagnosis. objectives to study the clinical manifestations and the ultrasound features of the pediatric patients for distinguishing ihh from hbl. patients and methods between 2002 and 2012, thirteen children with ihh and 38 child...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید