نتایج جستجو برای: ct self
تعداد نتایج: 658642 فیلتر نتایج به سال:
OBJECTIVE To systematically review the literature and summarize the effect of cognitive training (CT) for Alzheimer's disease (AD) patients on multiple functional domains. METHOD Effect sizes (Cohen's d) were calculated for 17 controlled studies identified through a comprehensive literature review. RESULTS An overall effect size of 0.47 was observed for all CT strategies across all measured...
An aneurysm of the subclavian artery is rare. Recently, we experienced a case of a ruptured subclavian artery aneurysm presenting as hemoptysis. The patient had experienced atypical chest discomfort, and computed tomography (CT) revealed a small aneurysm of the left subclavian artery (SCA). Hemoptysis occurred 2 weeks later. Follow-up CT showed a ruptured aneurysm at the proximal left SCA. Endo...
NETWORK FOR VOLUMETRIC MEASURMENTS ON BRAIN CT IMAGING Mohamed N. Ahmed, and Aly A. Farag Computer Vision and Image Processing Lab University of Louisville, Department of Electrical Engineering Louisville, KY 40292 E-mail:[email protected], Phone:(502)-852-7510, Fax:(502)852-6807 Abstract|In this paper, we present a new system to segment and label CT Brain slices using a self-organ...
Computed tomography (CT)-guided percutaneous core needle biopsy (PCNB) of the lung is a widely accepted and frequently performed interventional radiological procedure for the diagnosis of various pulmonary lesions. Common complications are usually mild and self-limited; however, air embolism is an extremely rare but potentially fatal complication. This study reports a case of fatal air embolism...
In this paper we describe and evaluate an image-based spectral CT method. Its central formula expresses measured CT data as a spectral integration of the spectral attenuation coefficient multiplied by a Local Weighting Function (LWF). The LWF represents the local energy weighting in the image domain, taking into account the system and reconstruction properties and the object self attenuation. A...
BACKGROUND The study aims to develop and validate an automatic delineation method for estimating red bone marrow (RM) activity concentration and absorbed dose in (89)Zr positron emission tomography/computed tomography (PET/CT) studies. Five patients with advanced colorectal cancer received 37.1 ± 0.9 MBq [(89)Zr] cetuximab within 2 h after administration of a therapeutic dose of 500 mg m(-2) un...
the purpose of this investigation was directed to propose sensitive, accurate and reproducible methods of analysis that can be applied to determine distigmine bromide (dtb), cyclopentolate hydrochloride (cphc), diaveridine hydrochloride (dvhc) and tetrahydrozoline hydrochloride (thhc) drugs in pure form and pharmaceutical preparations via charge-transfer complex formation with 7,7,8,8-tetracyan...
objective(s): the aim of this study is to evaluate the role of pet-ct in identification of different patterns of extranodal involvement in hodgkin’s disease (hd) and non-hodgkin’s lymphoma (nhl) and to enlist the common sites of extranodal involvement in each histological type and compare our results with the existing literature. methods: in this retrospective study of 281 cases of lymphomas of...
neurolymphomatosis is a rare manifestation of non-hodgkin lymphoma characterized by infiltration of peripheral nerves, nerve roots, plexus and cranial nerves by malignant lymphocytes. this report presents positron emission tomography/computed tomography (pet/ct)imaging with 2-deoxy-2-18f-fluoro-d-glucose (18f-fdg) in 3 cases of non-hodgkin lymphoma with nerve infiltration, including one newly d...
background: ankle fractures, especially those resulting from external rotation mechanisms are associated with injury to the distal tibiofibular syndesmosis. some authors have recommended performing ct scanning after open ankle surgery to evaluate the reduction of syndesmosis. in this current study, we aimed to investigate the sensitivity of plain radiography in diagnosing syndesmosis malreducti...
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