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PURPOSE To examine whether the different appearances of intramedullary high signal intensity (SI) on T2-weighted MR images in cervical spondylotic myelopathy are related to differences in surgical prognosis. MATERIALS AND METHODS The magnetic resonance (MR) findings and Japanese Orthopedic Association (JOA) score of 64 cervical spondylotic myelopathy(More)
Epithelial-mesenchymal transition (EMT), a critical process of cancer invasion and metastasis, is associated with stemness property of cancer cells. Though Oct4 and Nanog are homebox transcription factors essential to the self-renewal of stem cells and are expressed in several cancers, the role of Oct4/Nanog signaling in tumorigenesis is still elusive. Here(More)
PURPOSE To analyze brain activation patterns in response to tests of working memory after a mild traumatic brain injury (MTBI). MATERIALS AND METHODS Research ethics committee approval and patient written informed consent were obtained. Brain activation patterns in response to n-back working memory tasks (n = 1, 2, 3) were assessed with functional(More)
BACKGROUND AND PURPOSE To determine the accuracy of multislice computed tomographic (CT) angiography in diagnosing total versus near occlusions of the internal carotid artery (ICA). METHODS Fifty-seven ICA total or near occlusions identified by catheter angiography were studied with multislice CT angiography 1 to 3 days after catheter angiography. CT(More)
OBJECTIVE AND IMPORTANCE We describe a case of a posterior spinal epidural abscess that was successfully treated with percutaneous, computed tomography-guided, needle aspiration and parenteral antibiotic therapy. CLINICAL PRESENTATION A 48-year-old man experienced acute pain in the paralumbar region for 1 week, followed by gait disturbance and micturition(More)
BACKGROUND AND PURPOSE The etiologic mechanisms of young ischemic stroke in Chinese are largely unknown. This work thus studied the etiologies of young ischemic stroke in Taiwan Chinese and made a comparison with previous reports. METHODS From January 1997 to October 2001, a total of 264 consecutive young ischemic stroke patients (18 to 45 years old) were(More)
PURPOSE To determine if there are any neutral-position imaging criteria that can help predict functional cord impingement at flexion-extension cervical magnetic resonance (MR) imaging. MATERIALS AND METHODS Sixty-two patients with cervical degenerative disease were evaluated with regard to the dynamic changes of canal stenosis at flexion-extension MR(More)
PURPOSE To investigate the sensitivity and specificity of various magnetic resonance imaging findings for microcystic meningioma. METHODS Magnetic resonance images of 26 patients with microcystic meningioma (8 from our series and 18 from the literature) and 32 control subjects with other types of meningiomas were evaluated for obvious hypointensity(More)
OBJECTIVE To compare the frequency of microbleeds identified by susceptibility-weighted MRI (SWMRI) in patients with mild traumatic brain injury (mTBI) and normal controls, and correlate these findings with neuropsychological tests. METHODS Research ethics committee approval and patient written informed consents were obtained. One hundred eleven patients(More)
PURPOSE We performed a retrospective study to determine computerized tomography (CT) findings associated with perinephric angiomyolipomas or perinephric liposarcomas. MATERIALS AND METHODS During the last 7 years 6 patients with perinephric angiomyolipoma and 12 with perinephric liposarcoma were seen at our hospital. Two radiologists who were blinded to(More)