نتایج جستجو برای: color doppler
تعداد نتایج: 161606 فیلتر نتایج به سال:
Background Endometrial receptivity is one of parameters which determine the reproductive outcome in in vitro fertilization programs. A good blood supply towards the endometrium is usually considered to be an essential requirement for implantation. Blood vessels of the endometrium can be detected by transvaginal color and pulse Doppler sonography. Color Doppler assessment permits better visualiz...
OBJECTIVE To compare the clinical utility of contrast-enhanced color Doppler US in the differentiation of retinal detachment (RD) from vitreous membrane (VM) with that of various conventional US modalities, and to analyze the enhancement patterns in cases showing an enhancement effect. MATERIALS AND METHODS In 32 eyes examined over a recent two-year period, RD (n=14) and VM (n=18) were confir...
background: to evaluate the efficacy of color doppler ultrasound (cdus) in differentiating benign and malignant cervical lymph nodes by detecting differences in blood flow patterns. materials and methods: in this cross‑sectional prospective study, 25 untreated patients with clinical evidence of cervical lymphadenopathy were evaluated. cdus was performed for 80 cervical lymph nodes. the gray sca...
Carotid artery disease was assessed in 180 patients by means of color Doppler flow imaging. Color Doppler findings in 360 carotid arteries were compared with the results of standard Doppler sonography, and color Doppler findings in 60 bifurcations were compared with the results of intraarterial angiography. The sensitivity of color Doppler for the detection of carotid disease was 100% when comp...
Three patients with clinically suspected pseudoaneurysm as a complication of femoral puncture were referred for ultrasound (US) evaluation with both conventional duplex Doppler US and color Doppler imaging. Pseudoaneurysm (n = 2) and simple hematoma (n = 2) were depicted with both Doppler systems, and a separate pseudoaneurysm and a hematoma were found in one patient. These diagnoses were confi...
Combined two-dimensional and Doppler echocardiography has a high sensitivity and specificity for detection of isolated perimembranous ventricular septal defects. However, muscular or multiple ventricular septal defects may be difficult to diagnose with noninvasive methods, particularly in older children, necessitating angiography for accurate diagnosis. Detection of single and multiple ventricu...
background: as delay in diagnosis of ectopic pregnancy is directly associated with increasing mortality, it studying the high sensitivity and specificity of transvaginal color doppler sonography as the most preferred imaging method with the most accurate and rapid diagnosis results seems to be necessary. therefore, this study aims to evaluate the diagnostic value of transvaginal color doppler s...
OBJECTIVE To describe the typical sonographic findings and clinical applications of color Doppler sono-hysterography and to correlate the vascularity of lesions seen on color Doppler sonohysterography to microvessel density and the presence of vessels greater than 0.5 mm. METHODS Color Doppler sonohysterography was performed on 25 women with abnormal uterine bleeding. The vascularity (number ...
This is retrospective double-blind research, which was carried out in Imam Khomeini hospital in order to study the accuracy of color Doppler ultrasonography for detecting the site and grade of stenosis in cervical carotid artery. 40 patients with mean age of 62 years studied with color Doppler before DSA angiography. The most common sites of stenosis were left internal carotid (39.5%) and right...
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