نتایج جستجو برای: vertebral geometry
تعداد نتایج: 172619 فیلتر نتایج به سال:
We herein report the first Japanese case of vertebral sarcoidosis diagnosed using multiple imaging modalities and a biopsy. CT, MRI and (18)F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) detected multiple vertebral lesions, and a vertebral biopsy guided by the PET findings confirmed the diagnosis of vertebral sarcoidosis. Although the disease was refractory to corticosteroids, ...
BACKGROUND Recent morphological analyses of vertebrae in patients with scoliosis have revealed three-dimensional (3D) deformities in the vertebral bodies. However, it remains controversial whether these deformities are secondary changes caused by asymmetrical vertebral loading or primary changes caused by aberrant asymmetrical vertebral growth. Furthermore, the difference in vertebral morpholog...
UNLABELLED STUDY DESIGN AND AIMS: This was an observational pilot study of the vertebral body growth plates in scoliosis involving high-resolution coronal plane magnetic resonance (MR) imaging and histological examination. One aim of this study was to determine whether vertebral body growth plates in scoliosis demonstrated abnormalities on MR imaging. A second aim was to determine if a relation...
Most anuran larvae show large lateral oscillations at both the tip of the tail and the snout while swimming in a straight line. Although the lateral deflections at the snout have long been considered an inefficient aspect of tadpole locomotion, a recent hydrodynamic model suggests that they may in fact help generate thrust. It is not clear though exactly where this bending takes place. The vert...
OBJECTIVE To compare the accuracy of radiography and computed tomography (CT) in predicting implant position in relation to the vertebral canal in the cervical and thoracolumbar vertebral column. STUDY DESIGN In vitro imaging and anatomic study. ANIMALS Medium-sized canine cadaver vertebral columns (n=12). METHODS Steinmann pins were inserted into cervical and thoracolumbar vertebrae base...
BACKGROUND The identification of new methods of evaluating patients with osteoporotic fracture should focus on their usefulness in clinical situations such that they are easily measured and applicable to all patients. Thus, the purpose of this study was to examine the association between iliocostal distance and vertebral and non-vertebral fractures in patients seen in a clinical setting. METH...
BACKGROUND AND PURPOSE Antecedent balloon test occlusion is often performed prior to vertebral artery sacrifice, but there is limited data to suggest this adds a significant clinical benefit, especially in the setting of trauma. Furthermore, balloon test occlusion can be time-consuming, add to the technical complexity of the procedure, and increase the overall cost of treatment. The purpose of ...
Vertebral compression represents a significant percentage of the morbidity associated with upward ejection. Vertebral and intervertebral structure reacts to and is sometimes irreversibly altered by ejection acceleration. Design and material properties of the normal vertebral column are sufficiently constant that when structural characteristics are defined and acceleration profiles known, predic...
Though unilateral blood distribution of the vertebral artery has not been studied in humans, it is significant when considering the ischemic events especially embolic occlusion in vertebrobasilar system. To clarify the blood distribution, Krypton-81m was continuously infused into the vertebral arteries of 10 patients. Radioactivity was recorded by a rotating gamma camera. The perfusion images, ...
Yazının dergiye gönderilme tarihi: 10.06.2009 Yazının basıma kabul tarihi: 18.07.2009 Abstract Subclavian steal syndrome occurs when there is stenosis of the subclavian artery proximal to vertebral artery. The vertebral artery originates from the subclavian artery just before the origin of internal mammarian artery and, the most common lesion of the vertebral artery is an atheromatous plaque lo...
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