OBJECTIVE To evaluate the results of the open repair of ruptured thoracic and thoracoabdominal aortic aneurysms. METHODS From January 1997, a total of 100 consecutive open repairs of ruptured thoracic or thoracoabdominal aortic aneurysms were performed (43 thoracic and 57 thoracoabdominal). These patients were compared with contemporary cases that underwent repair of corresponding intact aneu...

BACKGROUND AND PURPOSE Hemodynamic factors are thought to play an important role in the initiation, growth, and rupture of cerebral aneurysms. This report describes a pilot clinical study of the association between intra-aneurysmal hemodynamic characteristics from computational fluid dynamic models and the rupture of cerebral aneurysms. METHODS A total of 62 patient-specific models of cerebra...

Rupture of atherosclerotic lesions, resulting in localized thrombi and marked falls in distal blood flow, is a pivotal event in unstable coronary syndromes. We tested the hypothesis that after lesion rupture, vasoconstrictor mechanisms are major contributors to a marked rise in distal microvascular resistance, which is responsible for much of the interruption in blood flow. Cholesterol-fed rabb...

While depiction and definition of morphological and architectural characteristics of CNS vascular disorders remains the first step of an MR analysis, emerging imaging techniques offer new functional information that might help to characterize rupture risk of CNS vascular disorders. Two main orientations are suggested by recent studies: inflammation of the vessel wall and analysis of physical co...

Aortic aneurysm is a common condition that is associated with a risk of rupture and sudden death. Clinical screening and surveillance are based largely on noninvasive assessment of aneurysm diameter and rate of change of diameter, often with serial ultrasound examination. An ability to identify vessel characteristics or processes that are associated with aneurysm enlargement or predictive of ru...

materials exhibit significant creep behavior at temperatures above 40% of their absolute melt temperature. lead, tin and their alloys are such materials which experience significant creep behavior in room temperature. one of the most important applications of the tin-lead alloys is soldering electronic circuits in electronic industry, and for lead are isolation walls and wet batteries. room tem...

INTRODUCTION Few cases have been reported describing anterior lens capsule ruptures secondary to blunt trauma. CASE We present an unusual case of anterior lens capsule ruptures following minor trauma from a human elbow with a two-year history of minimal-change glomerulopathy in a 17-year-old male. In addition to having bilateral posterior subcapsular cataracts, he developed an anterior subcap...

Rupture of unstable plaques may lead to myocardial infarction or stroke and is the leading cause of morbidity and mortality in western countries. Thus, there is a clear need for identifying these vulnerable plaques before the rupture occurs. Atherosclerotic plaques are a challenging imaging target as they are small and move rapidly, especially in the coronary tree. Many of the currently availab...