Πλοήγηση ανά Συγγραφέα "Kousi, E."
-
Application value of 3T H-1-magnetic resonance spectroscopy in diagnosing breast tumors
Vassiou, K.; Tsougos, I.; Kousi, E.; Vlychou, M.; Athanasiou, E.; Theodorou, K.; Arvanitis, D. L.; Fezoulidis, I. V. (2013)Background: Assessment of breast lesions with magnetic resonance imaging (MRI) provides a means for lesion detection and diagnosis. Proton (hydrogen-1) magnetic resonance spectroscopy (H-1-MRS) has been proposed as a useful ... -
Automated differentiation of glioblastomas from intracranial metastases using 3T MR spectroscopic and perfusion data
Tsolaki, E.; Svolos, P.; Kousi, E.; Kapsalaki, E.; Fountas, K.; Theodorou, K.; Tsougos, I. (2013)Purpose Differentiation of glioblastomas from metastases is clinical important, but may be difficult even for expert observers. To investigate the contribution of machine learning algorithms in the differentiation of ... -
Brain lesion classification using 3T MRS spectra and paired SVM kernels
Dimou, I.; Tsougos, I.; Tsolaki, E.; Kousi, E.; Kapsalaki, E.; Theodorou, K.; Kounelakis, M.; Zervakis, M. (2011)The increased power and resolution capabilities of 3T Magnetic Resonance (MR) scanners have extended the reach of Magnetic Resonance Spectroscopy as a non-invasive diagnostic tool. Practical sensor calibration issues, ... -
The contribution of diffusion tensor imaging and magnetic resonance spectroscopy for the differentiation of breast lesions at 3T
Tsougos, I.; Svolos, P.; Kousi, E.; Athanassiou, E.; Theodorou, K.; Arvanitis, D.; Fezoulidis, I.; Vassiou, K. (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
Tsougos, I.; Svolos, P.; Kousi, E.; Fountas, K.; Theodorou, K.; Fezoulidis, I.; Kapsalaki, E. (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
Kousi, E.; Tsougos, I.; Fountas, K.; Theodorou, K.; Tsolaki, E.; Fezoulidis, I.; Kapsalaki, E. (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, ... -
Fast spectroscopic multiple analysis (FASMA) for brain tumor classification: a clinical decision support system utilizing multi-parametric 3T MR data
Tsolaki, E.; Svolos, P.; Kousi, E.; Kapsalaki, E.; Fezoulidis, I.; Fountas, K.; Theodorou, K.; Kappas, C.; Tsougos, I. (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 ... -
Magnetic Resonance Spectroscopy of the Breast at 3T: Pre- and Post-Contrast Evaluation for Breast Lesion Characterization
Kousi, E.; Tsougos, I.; Vasiou, K.; Theodorou, K.; Poultsidi, A.; Fezoulidis, I.; Kappas, C. (2012)Purpose. To determine whether in vivo proton magnetic resonance spectroscopy at 3T can provide accurate breast lesion characterization, and to determine the effect of gadolinium on the resonance of tCho. Methods. Twenty-four ... -
Proton magnetic resonance spectroscopy at 3T - Evaluation of metabolic profile of human brain lesions
Kousi, E.; Tsougos, I.; Kapsalaki, E.; Kappas, C.; Theodorou, K. (2009)Brain MR imaging at 3T has been increasingly used in clinical practice since a great deal of effort has been invested in research into high magnetic fields to overcome the difficulties of successively working with stronger ... -
A quantitative evaluation of damage in normal appearing white matter in patients with multiple sclerosis using diffusion tensor MR imaging at 3 T
Gratsias, G.; Kapsalaki, E.; Kogia, S.; Dardiotis, E.; Tsimourtou, V.; Lavdas, E.; Kousi, E.; Pelekanou, A.; Hadjigeorgiou, G. M.; Fezoulidis, I. (2015)The white matter (WM) of the brain is damaged in multiple sclerosis (MS), even in areas that appear normal on standard MR imaging. The purpose of our study is to evaluate the damage of normal appearing white matter (NAWM) ... -
Response to "Application value of 3T H-1-magnetic resonance spectroscopy in diagnosing breast tumors"
Vassiou, K.; Tsougos, I.; Kousi, E.; Vlychou, M.; Athanasiou, E.; Theodoru, K.; Arvanitis, D. L.; Fezoulidis, I. V. (2014) -
The role of diffusion and perfusion weighted imaging in the differential diagnosis of cerebral tumors: a review and future perspectives
Svolos, P.; Kousi, E.; Kapsalaki, E.; Theodorou, K.; Fezoulidis, I.; Kappas, C.; Tsougos, I. (2014)The role of conventional Magnetic Resonance Imaging (MRI) in the detection of cerebral tumors has been well established. However its excellent soft tissue visualization and variety of imaging sequences are in many cases ... -
Spectroscopic Evaluation of Glioma Grading at 3T: The Combined Role of Short and Long TE
Kousi, E.; Tsougos, I.; Tsolaki, E.; Fountas, K. N.; Theodorou, K.; Fezoulidis, I.; Kapsalaki, E.; Kappas, C. (2012)Purpose. To evaluate the diagnostic value of 3T H-1-MRS in grading cerebral gliomas using short and long echo times. Methods. (HMRS)-H-1 was performed on 71 patients with untreated cerebral gliomas. Metabolite ratios of ... -
Strengths and Weaknesses of 1.5T and 3T MRS Data in Brain Glioma Classification
Kounelakis, M. G.; Dimou, I. N.; Zervakis, M. E.; Tsougos, I.; Tsolaki, E.; Kousi, E.; Kapsalaki, E.; Theodorou, K. (2011)Although magnetic resonance spectroscopy (MRS) methods of 1.5Tesla (T) and 3T have been widely applied during the last decade for noninvasive diagnostic purposes, only a few studies have been reported on the value of the ...