نتایج جستجو برای: spectral doppler indices
تعداد نتایج: 286104 فیلتر نتایج به سال:
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...
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...
polycystic ovary syndrom (pcos) is characterized by infertility, oligomenorrhea, and hyperandrogenism. clomiphene citrate (cc), an antiestrogen, is first-line treatment for pcos, if cc fails to induce ovulation, laparascopic electrocautery of the ovaries is offered. in this prospective controlled study, 52 women with clomiphen-resistant pcos (group 1) and 46 women with regular menstrual cycles ...
Doppler ultrasound is one of the non-invasive methods for blood flow assessment in cardio-vascular system and celiac trunk as the first branch of abdominal aorta is an important splanchnic artery. According to the relative differences in the reports of normal indices from doppler ultrasound of the celiac artery in the different medical centers of the world, it was decided to evaluate this issue...
OBJECTIVE To determine the association and correlation between morphologic features of breast cancer on gray scale ultrasound, and vascularity patterns and indices on color and spectral Doppler ultrasound. STUDY DESIGN Cross-sectional, analytical study. PLACE AND DURATION OF STUDY Department of Radiology, Dow University of Health Sciences and Civil Hospital, Karachi, from August 2006 to Jun...
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...
Background & Aim: Doppler ultrasonography is important in diagnosis of renal diseases by demonstrating vascular anatomy and hemodynamics. There is not any fix doppler indices in all of the references and it is suggested that each center should have its own standards. Also it is proved that biologic indices are not the same in different societies. The present study was performed on normal Ir...
BACKGROUND Hepatic circulatory disturbances have been associated with obesity and fatty liver in humans. In the veterinary literature, however, there is limited information regarding the effects of different body condition scores (BCS) on liver hemodynamic indices in dogs. OBJECTIVES To investigate the influence of BCS on liver hemodynamic indices. ANIMALS Fifty-three client-owned dogs of v...
abstract the urmia lake as an important water body in the northwest of iran, recently is faced with a critical level reduction, which makes it important to evaluate the causes. in this regard understanding of the lake's behavior and assessing effect of tele-connections on lake level oscillations is necessary. this subject constructs objective of the present paper that applies the spectral analy...
BACKGROUND/AIM The use of color Doppler ultrasonography provides noninvasive observation, confirmation and quantification of pathophysiological processes in fetoplacental circulation in pregnant patients. By blood vessel mapping and the obtained waves spectral analysis it is posible to evaluate vascular resistency of the fetus blood vessels. The aim of the study was to evaluate cerebral-umbilic...
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