Πλοήγηση ανά Συγγραφέα "Fezoulidis, I."
Αποτελέσματα 1-20 από 38
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Assessing the information content of phosphor produced medical images: application to Zn2SiO4 : Mn phosphor
(2000)In this study a method to assess the information content of medical images produced by phosphors is described. The optical signal emitted by the phosphor after X-ray excitation, the detective quantum efficiency (DQE), ... -
Brain Perfusion SPECT with Brodmann Areas Analysis in Differentiating Frontotemporal Dementia Subtypes
(2014)Despite the known validity of clinical diagnostic criteria, significant overlap of clinical symptoms between Frontotemporal dementia (FTD) subtypes exists in several cases, resulting in great uncertainty of the diagnostic ... -
Cancer vascularization: Implications in radiotherapy?
(2000)Purpose: Although hypoxia is considered a major cause of failure of radiotherapy, the mechanisms of tumor hypoxia are unclear, and effective ways for its correction or targeting are missing. Tumoral vasculature is the ... -
Carotid plaque composition in stable and unstable coronary artery disease
(2005)Background Several pieces of evidence suggest that formation of complex atheromatous plaques may be influenced not only by local but also by systemic factors. Methods Twenty-five patients (16 men/9 women, age 63 +/- 10 ... -
Celiomesenteric trunk demonstrated by multi-detector computed tomography angiography: two cases of a rare vascular variation
(2013)We present two cases of patients with celiomesenteric trunk in whom the celiac trunk and the superior mesenteric artery arise off a common vessel from the ventral part of the aorta, which was demonstrated by multi-detector ... -
Classification methods for the differentiation of atypical meningiomas using diffusion and perfusion techniques at 3-T MRI
(2013)The purpose was to investigate the contribution of machine learning algorithms using diffusion and perfusion techniques in the differentiation of atypical meningiomas from glioblastomas and metastases. Apparent diffusion ... -
Clinical Evaluation of Brain Perfusion SPECT with Brodmann Areas Mapping in Early Diagnosis of Alzheimer's Disease
(2015)Early diagnosis of Alzheimer's disease (AD) based on clinical criteria alone may be problematic, while current and future treatments should be administered earlier in order to be more effective. Thus, various disease ... -
The contribution of diffusion tensor imaging and magnetic resonance spectroscopy for the differentiation of breast lesions at 3T
(2014)Background: Conventional breast magnetic resonance imaging (MRI), including dynamic contrast-enhanced MR mammography (DCE-MRM), may lead to ambiguous diagnosis and unnecessary biopsies. Purpose: To investigate the contribution ... -
Differentiation of glioblastoma multiforme from metastatic brain tumor using proton magnetic resonance spectroscopy, diffusion and perfusion metrics at 3 T
(2012)Purpose: To assess the contribution of H-1-magnetic resonance spectroscopy (H-1-MRS), diffusion-weighted imaging (DWI), diffusion tensor imaging (DTI) and dynamic susceptibility contrast-enhanced (DSCE) imaging metrics in ... -
Distinct peak at 3.8 ppm observed by 3T MR spectroscopy in meningiomas, while nearly absent in high-grade gliomas and cerebral metastases
(2012)The purpose of the present study was to evaluate distinct metabolic features of meningiomas to distinguish them from other brain lesions using proton magnetic resonance spectroscopy. The study was performed on 17 meningiomas, ... -
Elimination of motion and pulsation artifacts using BLADE sequences in shoulder MR imaging
(2015)Objectives: To evaluate the ability of proton-density with fat-suppression BLADE (proprietary name for periodically rotated overlapping parallel lines with enhanced reconstruction in MR systems from Siemens Healthcare, ... -
Fast spectroscopic multiple analysis (FASMA) for brain tumor classification: a clinical decision support system utilizing multi-parametric 3T MR data
(2015)A clinical decision support system (CDSS) for brain tumor classification can be used to assist in the diagnosis and grading of brain tumors. A Fast Spectroscopic Multiple Analysis (FASMA) system that uses combinations of ... -
Haemodialysis patients with sleep apnoea syndrome experience increased central adiposity and altered muscular composition and functionality
(2008)Background. Sleep apnoea frequently affects patients with end-stage renal disease. However, it is still unclear whether or to what extent sleep disorders may affect functional capacity and quality of life in haemodialysis ... -
High intratumoural accumulation of stealth (R) liposomal doxorubicin (Caelyx (R)) in glioblastomas and in metastatic brain tumours
(2000)The blood-brain barrier is a major obstacle for the chemotherapeutic drugs to effectively reach primary or secondary brain tumours. Stealth(R) liposomal drugs are highly accumulated in tumoural tissues. In the present study ... -
High intratumoural accumulation of stealth® liposomal doxorubicin (Caelyx®) in glioblastomas and in metastatic brain tumours
(2000)The blood-brain barrier is a major obstacle for the chemotherapeutic drugs to effectively reach primary or secondary brain tumours, Stealth® liposomal drugs are highly accumulated in tumoural tissues. In the present study ... -
High-resolution ultrasonography and 3.0 T magnetic resonance imaging in erosive and nodal hand osteoarthritis: high frequency of erosions in nodal osteoarthritis
(2013)Erosive osteoarthritis (EOA) is defined as hand osteoarthritis (OA) with interphalangeal joint erosions on plain radiographs. We sought to find ultrasound (US) and magnetic resonance imaging (MRI) features that could ... -
How reliable is MRCP with an SS-FSE sequence at 3.0 T: comparison between SS-FSE BH and 3D-FSE BH ASSET sequences
(2013)Purpose: The purpose of the present study was to evaluate the visibility and the image quality of the biliary and pancreatic duct system on magnetic resonance cholangiopancreatography (MRCP) images based on two breath-hold ... -
Imaging of traumatic lesions of abdominal viscera
(2002)Trauma to the abdomen accounts for approximately 10% of trauma deaths. The injury may be blunt or penetrating. Abdominal organs are frequently injured from blunt trauma. Rapid acceleration-deceleration of abdominal viscera ... -
Investigating brain tumor differentiation with diffusion and perfusion metrics at 3T MRI using pattern recognition techniques
(2013)The aim of this study was to evaluate the contribution of diffusion and perfusion MR metrics in the discrimination of intracranial brain lesions at 3T MRI, and to investigate the potential diagnostic and predictive value ...