PURPOSE To describe and evaluate an application of sonography, transorbital color Doppler flow imaging of the carotid siphon and major intracranial arteries, and to compare it with transtemporal color Doppler flow imaging. METHODS The carotid siphon and major arteries at the base of the brain of 50 healthy volunteers were screened using the transorbital color Doppler flow sonography. These ar...

BACKGROUND AND PURPOSE This study was designed to test the hypothesis that paradoxical embolization would be a cause of embolic strokes and transient ischemic attacks in patients with stroke of uncertain etiology in all age groups. METHODS Thirty patients who had stroke of uncertain etiology were studied. They were divided into the following three groups: 13 patients with sudden onset (group ...

BACKGROUND AND PURPOSE Correctly diagnosing metastatic nodes is important for the follow-up of patients with clinical N0 stage neck disease and oral cancer. A combination of helical CT and Doppler sonography may facilitate the accurate detection of lymph node metastasis in patients with clinical N0 stage neck disease. METHODS A combination of contrast-enhanced helical CT and Doppler sonograph...

OBJECTIVE The purpose of this study was to verify the imaging quality of CT venography in the clinical evaluation of the lower extremity superficial venous system and to correlate the CT and duplex sonographic findings about varicose veins. SUBJECTS AND METHODS One hundred consecutively registered patients with varicose veins underwent CT venography. The image quality of overall 3D volume ren...

We describe the use of a recently developed technique in the field of color Doppler sonography, called power Doppler or color Doppler energy, that produces better images of the intracranial arteries than those obtained by conventional color Doppler techniques. Color Doppler energy makes it possible to identify aneurysms and their relationship to the parent artery, thus allowing one to observe h...

OBJECTIVE In bone injury, repair results in local increased vascularity and bone marrow remodeling. Characterizing the vascular and metabolic imaging patterns of the proximal femur following an intertrochanteric osteotomy may help clinicians decide proper management of the patient. Our objective was to measure Doppler sonography and scintigraphy interval changes in the proximal femur following ...

Sonography has become an integral part of the care of renal allograft recipients. It is a simple, inexpensive and readily available non-invasive imaging modality. It is indicated as the initial investigation in patients presenting with decreased urine output, pain, infection and hematuria and for doing a percutaneous allograft biopsy. While sonography confirms the diagnosis of obstructive nephr...