نتایج جستجو برای: dopplex sonography

تعداد نتایج: 7610  

Journal: :AJR. American journal of roentgenology 1984
R M Quencer B M Morse B A Green F J Eismont P Brost

Ten patients with prior spinal cord trauma were examined preoperatively by metrizamide computed tomography (CT) and were studied subsequently by intraoperative spinal sonography. On comparing intraoperative sonography with metrizamide CT, it was found that metrizamide CT tends to overestimate the size and number of posttraumatic cysts, that areas of myelomalacia on metrizamide CT correspond to ...

2010
Jane Lewis Melinda Hawkins Phillip Barree Scott Cawley Susan Dayananda

Introduction The prevalence of peripheral arterial disease (PAD) increases with age, affecting 3% under 60 years, rising to >20% over 75 years. Whilst 40% of PAD patients are symptomatic, around 60% are asymptomatic. PAD is a reliable marker of future vascular disease such as Congestive Heart Disease (CHD) and stroke, and a substantial public health issue. In the UK around 100,000 people are di...

Journal: :AJR. American journal of roentgenology 1992
B S Hertzberg J D Bowie B A Carroll M A Kliewer T M Weber

Placenta previa can be difficult to diagnose with transabdominal sonography during the third trimester of pregnancy, because of difficulties in imaging the cervix late in pregnancy. Although transperineal sonography offers an additional view of the cervix, its value in the diagnosis of placenta previa has not been studied. Accordingly, we performed transperineal sonography on 164 patients who h...

Journal: :Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 1997
M H Saidi R K Sadler V D Theis B D Akright S A Farhart G R Villanueva

We compared transvaginal sonography, sonohysterography, and diagnostic hysteroscopy in the evaluation of abnormal uterine bleeding, Sixty-eight women 40 or older with abnormal uterine bleeding were assigned to undergo either transvaginal sonography or sonohysterography. All subjects then had diagnostic hysteroscopy and endometrial biopsy. Patients with abnormal findings underwent operative hyst...

Journal: :AJR. American journal of roentgenology 2010
Giuseppe Caruso Giuseppe Salvaggio Antonella Campisi Darwin Melloni Massimo Midiri Michele Bertolotto Roberto Lagalla

OBJECTIVE The purpose of this study was to evaluate the effectiveness of contrast-enhanced sonography in comparison with conventional sonography in differentiating muscle-infiltrating and superficial neoplasms of the urinary bladder. SUBJECTS AND METHODS Conventional and contrast-enhanced sonography were performed on 34 consecutively registered patients with bladder tumors. All examinations w...

Journal: :Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 1998
T Postert J Federlein H Przuntek T Büttner

Power-based transcranial color-coded sonography and contrast-enhanced transcranial color-coded sonography are ultrasonographic techniques that allow improved visualization of vascular structures. The present study was designed to investigate and compare the diagnostic capacity and applicability of both methods in the assessment of intracranial vessels of the circle of Willis (33 patients) and t...

Journal: :archives of cardiovascular imaging 0
ahmad bitarafan-rajabi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran hadi hasanzadeh department of medical physics, semnan university of medical sciences, semnan, ir iran; department of medical physics, semnan university of medical sciences, semnan, ir iran. tel: +98-2333654171; ext: 525, fax: +98-2333654161 mahdi jahangiri department of medical physics, semnan university of medical sciences, semnan, ir iran zohreh hoseinpour department of medical physics, semnan university of medical sciences, semnan, ir iran hamideh nazemi department of medical physics, semnan university of medical sciences, semnan, ir iran atefeh baghian department of medical physics, semnan university of medical sciences, semnan, ir iran

background evaluation of the accuracy and performance of sonography units needs tissue-mimicking phantoms. these phantoms play an important role by simulating soft tissues, obviating the need to experiment on humans or animals. objectives to present a simple sonographic phantom for quality control and training purposes. materials and methods the presented phantom consists of a two-part plexigla...

Journal: :medical journal of islamic republic of iran 0
a. ghafouri dr shariati teaching hospital, school of medicine, tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: shariati teaching hospital sh. attarian dr shariati teaching hospital, school of medicine, tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: shariati teaching hospital m. tavangar dr shariati teaching hospital, school of medicine, tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: shariati teaching hospital n. sedighi dr shariati teaching hospital, school of medicine, tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: shariati teaching hospital

abstract background: evaluation of breast masses in women under 40 years old starts with a triple test score (tts) which is composed of clinical breast examination, mammography and fine needle aspiration. increased breast density in this age group decreases the sensitivity of mammography. so deciding whether to biopsy such nondiagnostic lesions or not is subject to challenge. breast masses up t...

2014
Ayoob Rostamzadeh Sam Mirfendereski Mohammad Jafar Rezaie Shohreh Rezaei

OBJECTIVES Misdiagnosing ovarian torsion is now suggested as an important issue in clinical setting. The aim of this study was to determine the diagnostic accuracy of sonography for ovarian torsion. Methods : In this study 323 women with acute pelvic pain with highly suspected ovarian torsion signs and symptoms attending Imam Reza Medical Center in Kermanshah between 2011 through 2012 were incl...

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