The classical imaging gold-standard for this diagnosis is the presence of tumor lateral to the carotid artery. Seventeen patients with pituitary macroadenomas with intraoperative confirmation of cavernous sinus invasion were studied with MRI. Only 8 patients had tumor lateral to the carotid artery; 13 had tumor within the carotid syphon and all lacked the ring enhancement of the medial wall of ...

XiVe present a case o£ coronary artery spasm during epidural plus general anesthesia. A 7i-year-old man was scheduled for pancreatoduodenectomy. A continuous thoracic epiclurai block was performed at the Th IO-ll interspace and gei}eral anesthesia was maintained with enfiurane and nitrous oxide in oxygen. Thirty minutes after the start of the operatioil, hypotension occurred suddenly and the EC...

An aneurysm is an abnormal widening of a blood vessel. As the vessel widens, it also gets thinner and weaker, with an increasing risk of rupture. Aneurysms are essentially found in the aorta, the popliteal artery, mesenteric artery, and cerebral arteries. Intracranial aneurysms are smaller than other types of aneurysm and mostly saccular. Though most patients do not experience rupture, it can l...

Traffic congestion of streets and roads constitutes a critical problem which is aggravated by the rise in the number of vehicles and by greater urbanization. The slow pace in the development of new highways and roads and public opposition to the widening of existing streets in some locations has forced the city managers to optimally use the existing infrastructures in order to effectively manag...

We report the case of a 63-year-old man, admitted after a traffic accident. Clinical examination found chest trauma, mandibular and long bone fractures but there was no cerebral ischemic signs. The chest X-ray showed a widening of the mediastinum; therefore an aortography demonstrated a false aneurysm, an intimal flap of the left common carotid artery (LCCA) and a middle aortic arch disruption....

Starting from the instability diagram of a traffic flow model, we derive conditions for the occurrence of congested traffic states, their appearance, their spreading in space and time, and the related increase in travel times. We discuss the terminology of traffic phases and give empirical evidence for the existence of a phase diagram of traffic states. In contrast to previously presented phase...

BACKGROUND Dolichoectasia is a rare disorder of the cerebral vasculature consisting of vascular elongation, widening, and tortuosity, usually involving the vertebral and basilar arteries. Its neurological symptoms and signs are highly variable. CASE DESCRIPTION We present a case of dolichoectasia of the vertebrobasilar system in a patient with a long standing history of multiple falls. Repeat...

Highway widening is an important way to improve the existing expressway capacity and promote development of transportation systems. The differential settlement between old new subgrade key factor evaluate whether it necessary carry out ground improvement for foundation, which will cause longitudinal pavement cracking even instability. Therefore, most critical task in highway expansion project c...

Apart from support of heart rate in patients of symptomatic bradycardia, in the last two decades, the indications of pacemakers have widened to prevent arrhythmias, optimise hemodynamic functions and suppress tachyarrhythmias. Pacemakers have been successfully used in Hypertrophic Obstructive Cardiomyopathy (HOCM) to reduce LVOT gradient and in improving cardiac output in patients of dilated ca...