OBJECTIVE To investigate the involvement of arteries other than the temporal arteries in active giant cell arteritis using color Doppler sonography. METHODS The occipital, facial, vertebral, carotid, subclavian, axillary, brachial, ulnar radial, femoral, popliteal, posterior tibial, and dorsal pedal arteries, and the abdominal aorta of 33 consecutive patients with acute giant cell arteritis a...

The value of duplex Doppler sonography as a noninvasive technique for evaluating the carotid neck vessels has been well documented [1-4]. The sensitivity and specificity of duplex Doppler sonography in the detection of high-grade stenosis (greater than 80%) approximates 90% [1] . However, duplex Doppler sonography has several limitations. Plaque ulceration cannot be detected reliably, even with...

Occlusion of the common carotid artery (CCA) is rare. CCA occlusion (CCAO) can present as drowsiness and right hemiplegia related to emboli after total arch replacement. Although we selected a follow-up at first because color duplex sonography showed retrograde flow from the left external carotid artery to the internal carotid artery, this patient had epilepsy and single-photon emission compute...

carotid body tumors (cbts) are rare, slow-growing tumors that should be considered in evaluating every lateral neck mass. this single center study was performed to define demographic features, clinical characteristics and remedies of iranian patients with cbt. a retrospective review of prospectively collected data was done on 45 patients with 50 cbts who have been referred to sina hospital, teh...

BACKGROUND Trifurcation of the common carotid artery is an unusual variation. CASE REPORT We report a case of left common carotid artery trifurcation in a 74-year-old man. The left common carotid artery divided into the internal carotid, external carotid and facial arteries. Herein, the anatomy of the carotid arteries and the Doppler sonography and CT angiography findings of the left common c...

Background: Diagnostic ultrasound has been used to detect human disease especially fetus abnormalities in recent decades. Although the harmful effects of diagnostic ultrasound on human have not been established so far, several researchers showed it has had bioeffects in cell lines and in experimental animals. Three-dimensional (3D), four-dimensional (4D), and color Doppler sonography are new te...

PURPOSE To assess the ability of color-flow Doppler sonography (CFDS) to detect plaque ulcerations in patients who had high-grade to thread-like carotid artery stenosis and who underwent carotid endarterectomy. METHODS CFDS is a noninvasive diagnostic technique that allows, in addition to spatial visualization of blood flow, the identification of abnormal blood flow patterns such as vortex fo...

Doppler sonography of 29 extracranial carotid arteries was performed twice within three days or less. Angiography revealed stenoses with from 10 to 95% diameter reduction in 25 internal carotid arteries whereas four vessels were found to be normal. The systolic peak frequency of the internal carotid artery read from the Doppler spectrum (n = 29) could be reproduced very well. This was shown by ...

Background: Carotid endarterectomy is effective in reducing recurrent stroke in patients with carotid stenosis. Duplex sonography is widely used for diagnosing internal carotid artery (ICA) stenosis. Surgeons often base management decisions solely on this technique. Published velocimetric criteria should be validated in each laboratory. This study aims to validate Doppler velocimetric criteria ...