Aneurism of the vein of Galen is a complex arteriovenous malformation which is of multiply communications between of the vein of Galen and the cerebral arteries. It represents less than 1% of the cerebral arteriovenous malformations. Few cases using three-dimensional (3D) power and color Doppler ultrasound have been reported in the literature. We present a case of an aneurysm of the vein of Gal...

OBJECTIVE To compare the clinical Allen test, preoperative Doppler ultrasonography, and intraoperative surgical Allen test with postoperative clinical findings in reconstruction of complex head and neck defects using radial forearm free flaps. DESIGN, SETTING, AND PATIENTS Retrospective review of 143 consecutive patients who underwent radial forearm free flap reconstruction from January 1, 19...

Acute ureteric colic caused by ureteric calculus disease is a commonly encountered clinical problem. Ultrasonography is one of the treatment modality available in the evaluation of patients with acute urologic disorders. Color Doppler Ultrasonography is an advancement of the conventional ultrasonography in which the Doppler Effect is employed. It can be used to visualize "ureteric jets". The pu...

Angiogenesis is a prominent feature of rheumatoid synovitis. Formation of new blood vessels permits a supply of nutrients and oxygen to the augmented inflammatory cell mass and so contributes to perpetuation of joint disease. Vascular endothelial growth factor (VEGF) is a potent endothelial cell-specific growth factor that is upregulated by proinflammatory cytokines and by hypoxia. Serum VEGF c...

INTRODUCTION Doppler ultrasonography enables non-invasive hemodynamic investigation of portal circulation. Doppler examination offers significant information on artery flow velocity waveforms in splanchnic arteries (hepatic artery) of the abdominal organs. Normal arterial flow of these arteries is anterograde both in systole and diastole (biphasic flow), which indicates small flow resistance (F...

Background: Choriocarcinoma is a rare, aggressive subtype of gestational trophoblastic neoplasia. The diagnosis of metastatic choriocarcinoma in the setting of a viable intrauterine pregnancy is exceedingly rare and often associated with feto-maternal hemorrhage. Case: An otherwise healthy Gravida 1 Para 0 at 34 weeks gestational age presented with metastatic choriocarcinoma and a viable fetus....

The paper reviews the current knowledge on the use of Doppler ultrasound in disease of the testis and scrotal contents. The first part presents fundamentals on vascularization and normal Doppler appearance of the testis as well as examination technique. The review presents the applications of Doppler ultrasonography in the diagnosis of inflammation, torsion and ischemia, varicocele, venous thro...

Ultrasonography has become one of the most popular techniques for noninvasive body assessment. The advent of sophisticated Doppler imaging has added an "information about blood flow" dimension. However, searching for complex details, despite enhanced system design and capabilities, place an increased demand on the operator. Examination technique and equipment settings are potential sources of e...

Esophagogastric varices are considered to be the most common complication in patients with portal hypertension. Endoscopic ultrasonography not only visualizes the surface of the varices but also provides detailed information about their internal structure. The direction of blood flow can be determined and its velocity measured only via endoscopic color Doppler ultrasonography (ECDUS). This can ...