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Πλοήγηση ανά Θέμα "Magnetic Resonance Imaging"

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    • AMPA receptor GluA2 subunit defects are a cause of neurodevelopmental disorders 

      Salpietro V., Dixon C.L., Guo H., Bello O.D., Vandrovcova J., Efthymiou S., Maroofian R., Heimer G., Burglen L., Valence S., Torti E., Hacke M., Rankin J., Tariq H., Colin E., Procaccio V., Striano P., Mankad K., Lieb A., Chen S., Pisani L., Bettencourt C., Männikkö R., Manole A., Brusco A., Grosso E., Ferrero G.B., Armstrong-Moron J., Gueden S., Bar-Yosef O., Tzadok M., Monaghan K.G., Santiago-Sim T., Person R.E., Cho M.T., Willaert R., Yoo Y., Chae J.-H., Quan Y., Wu H., Wang T., Bernier R.A., Xia K., Blesson A., Jain M., Motazacker M.M., Jaeger B., Schneider A.L., Boysen K., Muir A.M., Myers C.T., Gavrilova R.H., Gunderson L., Schultz-Rogers L., Klee E.W., Dyment D., Osmond M., Parellada M., Llorente C., Gonzalez-Peñas J., Carracedo A., Van Haeringen A., Ruivenkamp C., Nava C., Heron D., Nardello R., Iacomino M., Minetti C., Skabar A., Fabretto A., Hanna M.G., Bugiardini E., Hostettler I., O’Callaghan B., Khan A., Cortese A., O’Connor E., Yau W.Y., Bourinaris T., Kaiyrzhanov R., Chelban V., Madej M., Diana M.C., Vari M.S., Pedemonte M., Bruno C., Balagura G., Scala M., Fiorillo C., Nobili L., Malintan N.T., Zanetti M.N., Krishnakumar S.S., Lignani G., Jepson J.E.C., Broda P., Baldassari S., Rossi P., Fruscione F., Madia F., Traverso M., De-Marco P., Pérez-Dueñas B., Munell F., Kriouile Y., El-Khorassani M., Karashova B., Avdjieva D., Kathom H., Tincheva R., Van-Maldergem L., Nachbauer W., Boesch S., Gagliano A., Amadori E., Goraya J.S., Sultan T., Kirmani S., Ibrahim S., Jan F., Mine J., Banu S., Veggiotti P., Zuccotti G.V., Ferrari M.D., Van Den Maagdenberg A.M.J., Verrotti A., Marseglia G.L., Savasta S., Soler M.A., Scuderi C., Borgione E., Chimenz R., Gitto E., Dipasquale V., Sallemi A., Fusco M., Cuppari C., Cutrupi M.C., Ruggieri M., Cama A., Capra V., Mencacci N.E., Boles R., Gupta N., Kabra M., Papacostas S., Zamba-Papanicolaou E., Dardiotis E., Maqbool S., Rana N., Atawneh O., Lim S.Y., Shaikh F., Koutsis G., Breza M., Coviello D.A., Dauvilliers Y.A., AlKhawaja I., AlKhawaja M., Al-Mutairi F., Stojkovic T., Ferrucci V., Zollo M., Alkuraya F.S., Kinali M., Sherifa H., Benrhouma H., Turki I.B.Y., Tazir M., Obeid M., Bakhtadze S., Saadi N.W., Zaki M.S., Triki C.C., Benfenati F., Gustincich S., Kara M., Belcastro V., Specchio N., Capovilla G., Karimiani E.G., Salih A.M., Okubadejo N.U., Ojo O.O., Oshinaike O.O., Oguntunde O., Wahab K., Bello A.H., Abubakar S., Obiabo Y., Nwazor E., Ekenze O., Williams U., Iyagba A., Taiwo L., Komolafe M., Senkevich K., Shashkin C., Zharkynbekova N., Koneyev K., Manizha G., Isrofilov M., Guliyeva U., Salayev K., Khachatryan S., Rossi S., Silvestri G., Haridy N., Ramenghi L.A., Xiromerisiou G., David E., Aguennouz M., Fidani L., Spanaki C., Tucci A., Raspall-Chaure M., Chez M., Tsai A., Fassi E., Shinawi M., Constantino J.N., De Zorzi R., Fortuna S., Kok F., Keren B., Bonneau D., Choi M., Benzeev B., Zara F., Mefford H.C., Scheffer I.E., Clayton-Smith J., Macaya A., Rothman J.E., Eichler E.E., Kullmann D.M., Houlden H., SYNAPS Study Group (2019)
      AMPA receptors (AMPARs) are tetrameric ligand-gated channels made up of combinations of GluA1-4 subunits encoded by GRIA1-4 genes. GluA2 has an especially important role because, following post-transcriptional editing at ...

    • An anatomical update on the morphologic variations of S1 and S2 

      Karachalios, T.; Zibis, A. H.; Zintzaras, E.; Bargiotas, K.; Karantanas, A. H.; Malizos, K. N. (2010)
      Although percutaneous fixation with iliosacral screws has been shown to be a safe and reproducible method for sacroiliac dislocation and sacral fractures, it is a technically demanding technique, and one of its contraindications ...

    • Arteriovenous Malformations: Congenital or Acquired Lesions? 

      Tasiou A., Tzerefos C., Alleyne C.H., Jr., Boccardi E., Karlsson B., Kitchen N., Spetzler R.F., Tolias C.M., Fountas K.N. (2020)
      Objective: Arteriovenous malformations (AVMs) were believed to be congenital. However, an increasing number of de novo AVM cases have questioned this doctrine. Methods: A consensus meeting of international experts attempted ...

    • Arthroscopic Single-Row Versus Double-Row Suture Bridge Technique for Rotator Cuff Tears in Patients Younger Than 55 Years: A Prospective Comparative Study 

      Hantes M.E., Ono Y., Raoulis V.A., Doxariotis N., Venouziou A., Zibis A., Vlychou M. (2018)
      Background: When arthroscopic rotator cuff repair is performed on a young patient, long-lasting structural and functional tendon integrity is desired. A fixation technique that potentially provides superior tendon healing ...

    • Assessing multiple-group diagnostic problems with multi-dimensional receiver operating characteristic surfaces: Application to proton MR Spectroscopy (MRS) in HIV-related neurological injury 

      Yiannoutsos, C. T.; Nakas, C. T.; Navia, B. A.; Proton, M. R. S. Consortium (2008)
      We present the multi-dimensional Receiver Operating Characteristic (ROC) surface, a plot of the true classification rates of tests based on levels of biological markers, for multi-group discrimination, as an extension of ...

    • Associations between ghrelin and leptin and neural food cue reactivity in a fasted and sated state 

      Wever M.C.M., van Meer F., Charbonnier L., Crabtree D.R., Buosi W., Giannopoulou A., Androutsos O., Johnstone A.M., Manios Y., Meek C.L., Holst J.J., Smeets P.A.M., Full4Health consortium (2021)
      Food cue exposure can trigger eating. Food cue reactivity (FCR) is a conditioned response to food cues and includes physiological responses and activation of reward-related brain areas. FCR can be affected by hunger and ...

    • Bing–Neel syndrome presenting with bilateral lumbar radiculopathy: A case report of a rare clinical entity [Síndrome de Bing-Neel que se presenta con radiculopatía lumbar bilateral: reporte de caso de una entidad clínica rara] 

      Brotis A.G., Palassopoulou M., Kapsalaki E.Z., Paschalis T., Papastergiou V., Fountas K.N. (2022)
      The differential diagnosis of bilateral lower extremity weakness is broad. We present a very rare case of a 48-year old male patient, with walking difficulties due to Bing–Neel syndrome. On clinical examination, there was ...

    • Brain MRI and proton MRS findings in infants and children with respiratory chain defects 

      Dinopoulos, A.; Cecil, K. M.; Schapiro, M. B.; Papadimitriou, A.; Hadjigeorgiou, G. M.; Wong, B.; DeGrauw, T.; Egelhoff, J. C. (2005)
      Objective: The aim of this study is to describe neuroimaging patterns in children with respiratory chain (RC) defects using magnetic resonance imaging (MRI) and proton magnetic resonance spectroscopy (MRS) and to assess ...

    • Brain volume dynamics in multiple sclerosis. A case-control study 

      Andravizou A., Artemiadis A., Bakirtzis C., Siokas V., Aloizou A.-M., Peristeri E., Kapsalaki E., Tsimourtou V., Hadjigeorgiou G.M., Dardiotis E. (2019)
      Objectives: In this study, we aimed to explore the extent and clinical relevance of brain volume dynamics in relapsing remitting multiple sclerosis (RRMS). Methods: Sixty-three patients with RRMS with a disease duration ...

    • CADASIL in Greece: Mutational spectrum and clinical characteristics based on a systematic review and pooled analysis of published cases 

      Paraskevas G.P., Stefanou M.I., Constantinides V.C., Bakola E., Chondrogianni M., Giannopoulos S., Kararizou E., Boufidou F., Zompola C., Tsantzali I., Theodorou A., Palaiodimou L., Vikelis M., Lachanis S., Papathanasiou M., Bakirtzis C., Koutroulou I., Karapanayiotides T., Xiromerisiou G., Kapaki E., Tsivgoulis G. (2022)
      Background: Differences have been noted in the clinical presentation and mutational spectrum of CADASIL among various geographical areas. The aim of the present study was to investigate the mode of clinical presentation ...

    • Case Series: Bilateral Homonymous Visual Field Defects Due to Bilateral Ischemic Strokes 

      Papageorgiou E., Anthis N., Stathi T., Tsironi E., Asproudis I. (2018)
      SIGNIFICANCE Bilateral strokes are rare and should be considered when patients present with bilateral visual field loss characterized by patterns consistent with right and left-sided homonymous visual field defects. ...

    • Clinically reliable cognitive decline in relapsing remitting multiple sclerosis: Is it the tip of the iceberg? 

      Andravizou A., Siokas V., Artemiadis A., Bakirtzis C., Aloizou A.-M., Grigoriadis N., Kosmidis M.H., Nasios G., Messinis L., Hadjigeorgiou G., Dardiotis E., Peristeri E. (2020)
      Objectives: Cognitive impairment is common in multiple sclerosis, but the brain MRI correlates in relapsing remitting multiple sclerosis remain controversial. The current study aimed to investigate whether cognitive decline ...

    • Common and Uncommon Artifacts in T1 FLAIR SAG Sequences of MRI Brain 

      Lavdas E., Papaioannou M., Boci N., Dardiotis E., Roka V., Sakkas G.K., Apostolopoulou G., Gogou L., Mavroidis P. (2021)
      Objective: This study aims at identifying, classifying, and measuring the frequency the different artifacts that show up in the images of the Sagittal T1 Fluid Attenuated Inversion Recovery (FLAIR) sequence. Materials and ...

    • Computer-based automated estimation of breast vascularity and correlation with breast cancer in DCE-MRI images 

      Kostopoulos S.A., Vassiou K.G., Lavdas E.N., Cavouras D.A., Kalatzis I.K., Asvestas P.A., Arvanitis D.L., Fezoulidis I.V., Glotsos D.T. (2017)
      Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) with gadolinium constitutes one of the most promising protocols for boosting up the sensitivity in breast cancer detection. The aim of this study was twofold: ...

    • Concurrent cardiac sarcoidosis and obstructive sleep apnea presenting as arrhythmias 

      Malli F., Bardaka F., Gourgoulianis K.I., Daniil Z. (2020)
      Background: Cardiac involvement is a rare and potentially fatal presentation of sarcoidosis. Obstructive sleep apnea may complicate sarcoidosis. Case presentation: We report a case of a sarcoidosis patient with cardiac ...

    • Conjugate eye deviation as predictor of acute cortical and subcortical ischemic brain lesions 

      Kaditis D.G., Zintzaras E., Sali D., Kotoulas G., Papadimitriou A., Hadjigeorgiou G.M. (2016)
      Objectives Non-enhanced computed tomography (NECT) of the brain is used to exclude intracranial hemorrhage in patients who are considered for treatment with tissue plasminogen activator due to stroke symptoms. However, ...

    • The diagnostic accuracy of 3D ultrasound compared to 2D ultrasound and MRI in the assessment of deep myometrial invasion in endometrial cancer patients: A systematic review 

      Ziogas A., Xydias E., Kalantzi S., Papageorgouli D., Liasidi P.-N., Lamari I., Daponte A. (2022)
      Endometrial cancer is a common malignancy in women worldwide, with myometrial invasion (MI) being an important prognostic factor, usually assessed via imaging techniques. The aim of this review is to compare the diagnostic ...

    • Diagnostic accuracy of a new clinical test (The Thessaly test) for early detection of meniscal tears 

      Karachalios, T.; Hantes, M.; Zibis, A. H.; Zachos, V.; Karantanas, A. H.; Malizos, K. N. (2005)
      Background: Clinical tests used for the detection of meniscal tears in the knee do not present acceptable diagnostic sensitivity and specificity values. Diagnostic accuracy is improved by arthroscopic evaluation or magnetic ...

    • Diagnostic performance of quantitative diffusion tensor imaging for the differentiation of breast lesions at 3 T MRI 

      Tsougos I., Bakosis M., Tsivaka D., Athanassiou E., Fezoulidis I., Arvanitis D., Vassiou K. (2019)
      Background: Conventional breast magnetic resonance imaging (MRI), including dynamic contrast-enhanced MR mammography, may lead to ambiguous diagnosis and unnecessary biopsies. Purpose: To investigate the contribution of ...

    • Differential diagnosis of behavioral variant and semantic variant of frontotemporal dementia using visual rating scales 

      Manouvelou S., Koutoulidis V., Tsougos I., Tolia M., Kyrgias G., Anyfantakis G., Moulopoulos L.-A., Gouliamos A., Papageorgiou S. (2020)
      Background: Frontotemporal dementia (FTD) represents the second most frequent early onset of dementia in people younger than 65 years. The main syndromes encompassed by the term FTD are behavioral variant of Frontotemporal ...