Parcourir par sujet "Computerized tomography"
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Access of stroke patients' to optimal healthcare technology in Greece: Messages to policy makers
(2020)The aim of this study was to evaluate accessibility of stroke patients to optimal healthcare technology in Greece. Methods: The study population consisted of 313 first ever stroke patients derived from the 'Stroke Units ... -
Bimodal CT/MRI-based segmentation method for intervertebral disc boundary extraction
(2020)Intervertebral disc (IVD) localization and segmentation have triggered intensive research efforts in the medical image analysis community, since IVD abnormalities are strong indicators of various spinal cord-related ... -
Bone fracture identification in x-ray images using fuzzy wavelet features
(2019)The fracture detection process is difficult and requires specialized knowledge of the anatomical structures of the area under consideration. X-ray imaging provides images of the body's internal structures. Despite the rapid ... -
Comparison of physiological and post-endovascular aneurysm repair infrarenal blood flow
(2017)Endovascular aneurysm repair (EVAR) of abdominal aortic aneurysms results in redirection of blood through the deployed endograft (EG). Even though EVAR is clinically effective, the absolute flow restoration is not warranted. ... -
Confluent hepatic fibrosis as the presenting imaging sign in nonadvanced alcoholic cirrhosis
(2004)Confluent hepatic fibrosis (CHF) is usually a feature of advanced cirrhosis, while occurrence in early stage compensated cirrhosis is uncommon. We report the imaging findings of masslike CHF in a patient with previously ... -
Dose calculation optimization in intracranial stereotactic radiotherapy using implicit surface modeling
(2009)Intracranial Stereotactic radiotherapy / radiosurgery utilize fractioned dose delivery through multiple noncoplanar arcs to avoid harm of normal tissue. Proper positioning of the arcs in respect to avoid Organs at Risk ... -
Hemodynamic profile of two aortic endografts accounting for their postimplantation position
(2017)Endovascular aneurysm repair (EVAR) is a clinically effective technique for treating anatomically eligible abdominal aortic aneurysms (AAAs), involving the deployment of an endograft (EG) that is designed to prevent blood ... -
In-stent graft helical flow intensity reduces the risk of migration after endovascular aortic repair
(2019)During the last years endovascular aneurysm repair (EVAR) became the elective treatment for abdominal aortic aneurysms (AAAs) thanks to lower mortality and morbidity rates than open surgery. In face of these advantages, ... -
An intelligent tool for anatomical object segmentation using deformable surfaces
(2012)Image segmentation is a very active area of research in machine vision. In this work, an innovative methodology is presented that allows the segmentation of objects in three-dimensional images with initial user intervention. ... -
Maxillary sinus inflammatory disease: Ultrasound compared to computed tomography
(1997)Fifty-six patients (age range, 15-79 yr, average, 37.0±18.5 yr), with a clinical and/or radiological diagnosis of acute maxillary sinusitis, were prospectively studied with ultrasound (US) and computed tomography (CT). The ... -
Monte carlo computational software and methods in radiation dosimetry
(2021)The fast developments and ongoing demands in radiation dosimetry have piqued the attention of many software developers and physicists to create powerful tools to make their experiments more exact, less expensive, more ... -
The ovation abdominal stent graft for the treatment of abdominal aortic aneurysms: Current evidence and future perspectives
(2016)The Ovation Abdominal Stent Graft System is a trimodular endoprosthesis recently introduced for the endovascular repair of abdominal aortic aneurysm (AAA). It uncouples the stages of stent-graft fixation and sealing with ... -
Photon dose kernels dataset for nuclear medicine dosimetry, using the GATE Monte Carlo toolkit
(2012)Photon dose point kernels (DPKs) were generated using the GATE toolkit for different media and for radionuclides of interest in nuclear medicine. In the present work the primary photon contribution of different isotopes ... -
Strokes and TIAs during and after Carotid Artery Doppler: Cause or Coincidence?
(2015)The aim of the present study was to explore the prevalence of acute cerebrovascular symptoms temporally related to carotid Doppler examination (DEx), in order to increase the awareness and recording of such events and to ... -
A Sub-Sampling Approach for Data Acquisition in Gamma Ray Emission Tomography
(2016)State of the art data acquisition systems for small animal imaging gamma ray detectors often rely on free running Analog to Digital Converters (ADCs) and high density Field Programmable Gate Arrays (FPGA) devices for digital ... -
Τhe AFX unibody bifurcated unibody aortic endograft for the treatment of abdominal aortic aneurysms: current evidence and future perspectives
(2020)Introduction: AFX is a bifurcated unibody aortic endograft for the treatment of Abdominal Aortic aneurysms. It consists of an inner metallic endoskeleton with multiple metallic struts covered by a polytetrafluoroethylene ...