نتایج جستجو برای: multislice computed tomography

تعداد نتایج: 266023  

Journal: :Acta gastroenterologica Latinoamericana 2021

The involvement of the appendix by lymphomas, both primarily or secondarily, is extremely rare; primary lymphomas account for less than 0.02% gastrointestinal neoplasm. We present rare case a patient who debuts with low bleeding as main symptom. Colonoscopy found an extra mucosal tumour on posterior aspect ceccum and from appendicular orifice. Primary confirmed multislice computed tomography la...

Journal: :Revista espanola de cardiologia 2011
José F Rodríguez-Palomares Hug Cuéllar Gerard Martí Bruno García M Teresa González-Alujas Patricia Mahía Arturo Evangelista Pilar Tornos David García-Dorado

INTRODUCTION AND OBJECTIVES Multislice computed tomography is an excellent technique for the detection of significant coronary artery lesions. Our purpose was to assess whether computed tomography could replace routine invasive coronariography before valvular surgery. METHODS We studied 106 consecutive patients (mean age: 67 [10]): 76% aortic valvular disease (62% stenosis, 14% regurgitation)...

2012
George K.C. Wong Simon C.H. Yu Wai Sang Poon

After aneurysmal subarachnoid hemorrhage, most center practices treatment modality selection based on size and geometry in computed tomographic angiography. However, the validity as compared to digital subtraction angiography (DSA) is not well studied. Twenty patients with ruptured internal carotid artery aneurysm were identified in a two-year period. Mean difference in measurements from 3D com...

Journal: :journal of dental research, dental clinics, dental prospects 0
tahmineh razi assistant professor, department of oral and maxillofacial radiology tabriz university of medical science mahdi niknami assistant professor, department of oral and maxillofacial radiology tehran university of medical science fakhri alavi ghazani post graduate student department of oral and maxillofacial radiology tabriz university of medical science

background and aims. cone-beam computed tomography (cbct) is an imaging system which has many advantages over computed tomography (ct). in ct scan, hounsfield unit (hu) is proportional to the degree of x-ray attenuation by the tissue. in cbct, the degree of x-ray attenuation is shown by gray scale (voxel value). the aim of the present study was to investigate the relationship between gray scale...

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