Carotid intima-media thickness (cIMT) is a surrogate marker of early atherosclerotic changes in children. cIMT-studies are hard to compare, due to variations in ultrasound protocols, especially regarding the common carotid artery (CCA) segment measured in relation to the bulb. This study's purpose was therefore to compare two distinct CCA segments in children, to see if cIMT values differ subst...

Knowledge of incidence of morphological variations in the course and branching of the carotid arteries is important for radiological interpretation and surgical correction when they are symptomatic. Internal carotid artery (ICA) is known to show elongation in its extra cranial course. Previous studies have demonstrated the incidence and clinical symptoms of this morphological entity. However, t...

Using the Seldinger technique in a percutaneous femoral approach, a 7 French sidewinder femorocerebral catheter is advanced over a movable-core safety J guide wire [2] to the aortic arch , where catheterization of the left carotid is attempted initially by the conventional open-loop method with withdrawal hooking of the arterial orifice . When difficulty is encountered , the following technique...

BACKGROUND AND PURPOSE Tibolone is a tissue-specific compound that has favorable effects on bone and menopausal symptoms without stimulating endometrium or breast, but lowers concentrations of plasma high-density lipoprotein (HDL) cholesterol (HDLC). This study was designed to determine whether the HDL lowering with tibolone exacerbated common or internal carotid artery atherosclerosis and to e...

We review carotid artery hemodynamics in hypertensive men, with particular reference to common carotid artery diameter and blood flow, and emphasize the changes in artery diameter and compliance implied by antihypertensive therapy.

OBJECTIVE To determine frequency of carotid artery disease in patients undergoing elective coronary artery bypass grafting (CABG) using Doppler sonography. STUDY DESIGN Observational study. PLACE AND DURATION OF STUDY Radiology Department, The Aga Khan University Hospital, Karachi, from January 2005 to September 2008. METHODOLOGY Patients with known cardiovascular disease waiting for CABG...

Endothelial dysfunction has been reported to be the initial step in atherosclerosis. A noninvasive technique that uses ultrasound to measure the intima-media thickness of the carotid artery has been applied to evaluate localized atherosclerosis. This study was undertaken to elucidate whether endothelial dysfunction in the brachial artery is related to the intima-media thickness of the carotid a...

Background and purpose Despite advances in endovascular therapies, some patients experience vertebral artery stenosis or subclavian occlusion may not benefit from less-invasive angioplasty/stenting. This study described 4 cases which carotid-vertebral transposition (CVT) carotid-subclavian (CST) was adapted when treatment unfeasible unsuccessful. Presentation Case 1: A 65-year-old woman present...

This is the second part of a two-part study that explores the feasibility of 3-D, volumetric brain imaging in small animals by optical tomographic techniques. In part 1, we demonstrated the ability to visualize global hemodynamic changes in the rat head in response to elevated levels of CO(2) using a continuous-wave instrument and model-based iterative image reconstruction (MOBIIR) algorithm. N...

To evaluate the association between common carotid intima-media thickness and noninvasively assessed atherosclerosis elsewhere in the carotid artery, we used data from the Rotterdam Study, a single-center population-based, prospective follow-up study among 7983 subjects aged 55 years or older. Baseline measurements included ultrasonographic evaluation of the vessel wall characteristics of the c...