Listar por tema "MAGNETIC-RESONANCE-SPECTROSCOPY"

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, ...

Classification methods for the differentiation of atypical meningiomas using diffusion and perfusion techniques at 3-T MRI

Svolos, P.; Tsolaki, E.; Theodorou, K.; Fountas, K.; Kapsalaki, E.; Fezoulidis, I.; Tsougos, I. (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 ...

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 ...

Focal therapy for prostate cancer: patient selection and evaluation

Gravas, S.; Tzortzis, V.; de la Riva, S. I. M.; Laguna, P.; de la Rosette, J. (2012)

Recent stage migration toward low-risk prostate cancer, overtreament of biologically insignificant tumors with radical prostatectomy at the additional expense of a non-negligible morbidity and undertreatment of patients ...

Frontal brain lobe impairment in obstructive sleep apnoea: a proton MR spectroscopy study

Alchanatis, M.; Deligiorgis, N.; Zias, N.; Amfilochiou, A.; Gotsis, E.; Karakatsani, A.; Papadimitriou, A. (2004)

Patients with obstructive sleep apnoea syndrome frequently have cognitive deficits, especially related to executive functions, which cannot be fully explained by daytime sleepiness and are partial irreversible after nasal ...

Implementation of physicochemical and sensory analysis in conjunction with multivariate analysis towards assessing olive oil authentication/adulteration

Arvanitoyannis, I. S.; Vlachos, A. (2007)

The authenticity of products labeled as olive oils, and in particular as virgin olive oils, stands for a very important issue both in terms of its health and commercial aspects. In view of the continuously increasing ...

Investigating brain tumor differentiation with diffusion and perfusion metrics at 3T MRI using pattern recognition techniques

Svolos, P.; Tsolaki, E.; Kapsalaki, E.; Theodorou, K.; Fountas, K.; Fezoulidis, I.; Tsougos, I. (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 ...

Prognostic Value of MRS Metabolites in Postoperative Irradiated High Grade Gliomas

Tolia, M.; Verganelakis, D.; Tsoukalas, N.; Kyrgias, G.; Papathanasiou, M.; Mosa, E.; Kokakis, I.; Kouvaris, J. R.; Pissakas, G.; Pistevou-Gombaki, K.; Kelekis, N.; Kouloulias, V. (2015)

Purpose. We studied the prognostic significance of Magnetic Resonance Spectroscopy (MRS) in operated high grade gliomas. Materials and Methods. Twelve patients were treated with radiotherapy and Temozolomide. The MRS data ...

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 ...