نتایج جستجو برای: three dimensional power doppler ultrasonography

تعداد نتایج: 2013614  

Journal: :Annual review of biomedical engineering 1999
G York Y Kim

Since the introduction of medical ultrasound in the 1950s, modern diagnostic ultrasound has progressed to see many major diagnostic tools come into widespread clinical use, such as B-mode imaging, color-flow imaging, and spectral Doppler. New applications, such as panoramic imaging, three-dimensional imaging, and quantitative imaging, are now beginning to be offered on some commercial ultrasoun...

2009
K. Kalmantis C. Dimitrakakis Ch. Koumpis A. Tsigginou N. Papantoniou S. Mesogitis A. Antsaklis

Purpose. The aim of this study was to determine the value of 3D and 3D Power Doppler sonography in the detection of tumor malignancy in breast lesions and to find new diagnostic criteria for differential diagnosis. Methods. One hundred and twenty five women with clinically or mammographically suspicious findings were referred for 3D Power Doppler ultrasound prior to surgery. Histological diagno...

Journal: :Human reproduction 2003
C C W Chan E H Y Ng C F Li P C Ho

BACKGROUND Whether salpingectomy affects ovarian function is controversial. In this study, ovarian function was assessed by antral follicle count, ovarian volume and ovarian stromal blood flow measured by three-dimensional (3D) power Doppler ultrasonography. The objectives of the study were to compare the ovarian function of the operated side with the non-operated side after unilateral salpinge...

Journal: :acta medica iranica 0
ahmad shajari department of pediatric nephrology, shahid sadoughi university of medical sciences, yazd, iran. reza nafisi-moghadam department of radiology, shahid sadoughi university of medical sciences, yazd, iran. mahrooz malek department of radiology, tehran university of medical sciences, tehran, iran. agha smaili department of pediatric nephrology, shahid sadoughi university of medical sciences, yazd, iran. mahmud fallah department of radiology, shahid sadoughi university of medical sciences, yazd, iran. ali pahlusi department of pediatric nephrology, shahid sadoughi university of medical sciences, yazd, iran.

urinary tract infections are common in children. the available gold standard method for diagnosis, tc-99m dimercaptosuccinic acid scan is expensive and exposes patients to considerable amount of radiation. this study was performed to compare and assess the efficacy of power doppler ultrasound versus tc-99m dmsa scan for diagnosis of acute pyelonephritis. a quasi experimental study was conducted...

Journal: :Kulak burun bogaz ihtisas dergisi : KBB = Journal of ear, nose, and throat 2009
Ziver Ayata Melda Apaydin Makbule Varer Ayşegül Sarsilmaz Cağlar Calli Türkan Rezanko

OBJECTIVES Our purpose was to investigate cervical lymphadenopathies by using color Doppler spectral analysis and power Doppler ultrasonography methods as well as B-mode ultrasound and to classify them as malignant or benign lesions and to compare the results with the histopathological findings. PATIENTS AND METHODS Sixty-nine lymph nodes of 69 patients were evaluated with color and power Dop...

Journal: :Clinical and experimental rheumatology 2000
W A Schmidt L Völker J Zacher M Schläfke M Ruhnke E Gromnica-Ihle

OBJECTIVE To determine if colour Doppler ultrasonography can characterise the nature of intraarticular echogenic structures and synovial villi more precisely than conventional ultrasonography. METHODS This is a prospective study on 20 patients--10 with rheumatoid arthritis and 10 with osteoarthritis. Colour Doppler ultrasonography of the knee joints was performed prior to total prosthetic rep...

Journal: :iranian journal of radiology 0
firoozeh ahmadi department of reproductive imaging at reproductive biomedicine research center, royan institute for reproductive biomedicine, acecr, tehran, iran; department of reproductive imaging at reproductive biomedicine research center, royan institute for reproductive biomedicine, acecr, p. o. box: 16635-148, tehran, iran. tel: +98-2123562446 hadieh haghighi department of reproductive imaging at reproductive biomedicine research center, royan institute for reproductive biomedicine, acecr, tehran, iran

2014
Whal Lee

Carotid Doppler ultrasonography is a popular tool for evaluating atherosclerosis of the carotid artery. Its two-dimensional gray scale can be used for measuring the intima-media thickness, which is very good biomarker for atherosclerosis and can aid in plaque characterization. The plaque morphology is related to the risk of stroke. The ulceration of plaque is also known as one of the strong pre...

Journal: :Obstetrics and gynecology 2015
Sally L Collins Gordon N Stevenson Abdulla Al-Khan Nicholas P Illsley Lawrence Impey Leigh Pappas Stacy Zamudio

OBJECTIVE To test an objective ultrasound marker for diagnosing the presence and severity of abnormally invasive placenta. METHODS Women at risk of abnormally invasive placenta underwent a three-dimensional power Doppler ultrasound scan. The volumes were examined offline by a blinded observer. The largest area of confluent three-dimensional power Doppler signal (Area of Confluence [Acon], cm)...

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