OBJECTIVE The purpose of this presentation is to review the techniques of performing an upper extremity Doppler examination, in addition to illustrating the sonographic appearances of acute and chronic upper extremity deep venous thrombosis (UEDVT). METHODS The risk factors and complications of UEDVT are discussed, and the anatomy of the upper extremity deep venous system as well as examinati...

Transcranial Doppler sonography shows potential as a noninvasive technique for long-term follow-up of treated intracranial saccular aneurysms. This technical note describes a color Doppler artifact related to microcoil architecture that might represent a potential pitfall in transcranial Doppler sonographic evaluation of aneurysmal cavity thrombosis, since it may be wrongly interpreted as resid...

OBJECTIVE To evaluate the accuracy of Ultrasound in the diagnosis of Infantile Hypertrophic Pyloric stenosis, especially with simultaneous use of grey-scale & colour doppler examination of pylorus. METHODS Fifty two infants with suspected Infantile Hypertrophic Pyloric stenosis (IHPS) were evaluated with grey-scale and colour Doppler examination. The sonographic findings were categorized as p...

PURPOSE To describe a case where detection of blood flow in the central retinal artery and the central retinal vein was limited by an artifact evoked by the optic disc drusen. METHODS Case report. RESULTS During color Doppler sonography, examination of optic disc drusen may generate an artifact--the so-called twinkling artifact--which can simulate blood flow and make evaluation of the central...

Osler -Weber -Rendu disease or hereditary hemorrhagic telangiectasia(HHT) has been known to be an autosomal dominant disorder characterized by telangiectases and arteriovenous malformations of multiple organ systems(1). Hepatic involvement occurs in 8-31 % ofcases with HHTand includes telangiectases or arteriovenous fistulas associated with fibrosis and cirrhosis(2 , 3). Recent reports demonstr...