Marked calcifications in the femoral artery obscured imaging of the artery in computed tomography (CT) and duplex ultrasonography. The presence of corkscrew collateral arteries in patients with Atherosclerosis obliterans (ASO) indicates total artery occlusion.

Abstract Background Cerebral stroke is a major source of mortality and morbidity. Duplex ultrasonography used to evaluate carotid cerebral arteries. The objectives this work are study the correlation between duplex parameters with risk factors ischemic parameter as prognostic tool stroke. Methods was conducted on 100 patients presented by acute submitted history taking, medical, neurological ex...

Thromboembolic events represent the main cause of morbidity and mortality in patients with polycythemia vera. Leukocytosis has been identified as an important risk factor for development of vascular thrombosis. A 47-year-old woman with polycythemia vera presented with pain and swelling in her right calf. She was scheduled to receive anagrelide which was effective on polycythemia and thrombocyto...

A detailed protocol for the performance and interpretation of duplex ultrasound evaluation of hemodialysis access is described.

OBJECTIVES To define velocity criteria by ultrasonography for the detection of hemodynamically significant (>60%) renal artery in-stent restenosis (ISR). BACKGROUND The restenosis rate after renal artery stenting ranges between 10% and 20%. While duplex ultrasound criteria have been validated for native renal artery stenosis, there are no uniformly accepted validated criteria for stented rena...

213 4 Sturzenegger M, Mattle HP, Rivoir AS, Baumgartner RW: Ultrasound fi ndings in carotid artery dissection: analysis of 43 patients. Neurology 1995; 45: 691–698. 5 Zuber J, Meary E, Meder JF, Mas JL: Magnetic resonance imaging and dynamic CT scan in cervical artery dissections. Stroke 1994; 25: 576– 581. 6 Bui LN, Brant-Zawadzki M, Verghese P, Gillan G: Magnetic resonance angiography of cerv...

We compared carotid artery disease in 99 black and 106 white patients using duplex ultrasonography (B-mode imaging and Doppler spectral analysis). Blacks had significantly less stenosis of the extracranial internal carotid artery than whites. Among the risk factors investigated, hypertension alone, ischemic heart disease, diabetes mellitus, and smoking failed to explain the racial difference. A...

This case study reports the diagnosis and treatment of a lower limb venous ulcer with abnormal underlying venous pathology. One male patient presented with bilateral varicose veins and a right lower limb ulcer. Upon investigation, full-leg duplex ultrasonography revealed total incompetence of the great saphenous vein in the left leg. In the right leg, duplex ultrasonography showed proximal inco...

OBJECTIVE The purpose of this study was to visualize the shunt flow of arteriovenous fistulas (AVFs) passing towards the top side of the foot from the plantar artery. METHODS Colour-flow duplex Doppler ultrasonography was performed in 112 patients who consulted an outpatient clinic with varicose veins and/or symptoms such as foot oedema, dullness, cramp and coldness. Thirteen age-and sex-matc...