نتایج جستجو برای: spectral doppler sonography

تعداد نتایج: 214007  

Journal: :AJNR. American journal of neuroradiology 2000
D J Roebuck A T Ahuja

BACKGROUND AND PURPOSE Hemangioendothelioma is the most common parotid gland tumor of childhood, and is diagnosed on clinical grounds, supported by imaging findings. Previous work has suggested that MR is the best imaging technique for assessment of parotid hemangioendothelioma. Demonstration of a reliable sonographic appearance would reduce the need for MR imaging in infants with this lesion. ...

2013
Thais Guaraná Andrade Homero Soares Fogaça Celeste Carvalho Siqueira Elia Melissa Tassano Pitrowsky Heitor Siffert Pereira de Souza

OBJECTIVES Intestinal neovascularization and abnormal abdominal arterial flow rates have been reported in Crohn's disease. The aim of this study was to evaluate Doppler sonography as a method for assessing Crohn's disease activity based on changes in splanchnic hemodynamics. METHODS Forty-eight patients with Crohn's disease, 22 healthy volunteers and 12 patients with irritable bowel syndrome ...

2015
Ioan M. Coman Bogdan A. Popescu

This year we celebrate 60 years since Shigeo Satomura published the first measurements of the Doppler shift of ultrasonic signals from a beating heart. He demonstrated that Doppler signals can be retrieved from heart movements when insonated with 3 MHz ultrasonic waves. Later, togheter with Ziro Kaneko, he constructed the first Doppler flowmeter to measure the blood flow velocities in periphera...

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