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A. Valavanis · SciRah

Researcher profile · Semantic Scholar

A. Valavanis

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A. Valavanis — researcher profile on SciRah

h-index: 41
Works: 303
Citations: 5,435

Most-cited papers

Impact of fMRI-guided advanced DTI fiber tracking techniques on their clinical applications in patients with brain tumors
R. Kleiser, Philipp Staempfli, A. Valavanis, P. Boesiger +1 more
2009Neuroradiology99 citations Open access
Semantic Scholar
Combining monoenergetic extrapolations from dual-energy CT with iterative reconstructions: reduction of coil and clip artifacts from intracranial aneurysm therapy
S. Winklhofer, R. Hinzpeter, D. Stocker, G. Baltsavias +5 more
2018Neuroradiology97 citations
Semantic Scholar
Glioblastoma in the Canton of Zurich, Switzerland revisited: 2005 to 2009
D. Gramatzki, S. Dehler, Elisabeth J. Rushing, K. Zaugg +11 more
2015Cancer94 citations Open access
Semantic Scholar
Predicting outcome of epilepsy after meningioma resection.
H. Wirsching, C. Morel, Corinne Gmür, M. Neidert +5 more
2016Neuro-Oncology88 citations Open access
Semantic Scholar
Staging Hemodynamic Failure With Blood Oxygen-Level–Dependent Functional Magnetic Resonance Imaging Cerebrovascular Reactivity: A Comparison Versus Gold Standard (15O-)H2O-Positron Emission Tomography
J. Fierstra, C. V. van Niftrik, G. Warnock, S. Wegener +8 more
2018Stroke71 citations Open access
Semantic Scholar
Pituitary surgery and volumetric assessment of extent of resection: a paradigm shift in the use of intraoperative magnetic resonance imaging.
C. Serra, J. Burkhardt, G. Esposito, O. Bozinov +5 more
2016Neurosurgical Focus59 citations Open access
Semantic Scholar
Is there a role for conventional MRI and MR diffusion-weighted imaging for distinction of skull base chordoma and chondrosarcoma?
U. Müller, R. Kubik-Huch, C. Ares, E. Hug +3 more
2016Acta Radiologica49 citations
Semantic Scholar
Modified Dual-Energy Algorithm for Calcified Plaque Removal: Evaluation in Carotid Computed Tomography Angiography and Comparison With Digital Subtraction Angiography
M. Mannil, Jaychandran Ramachandran, Ilaria Vittoria de Martini, S. Wegener +6 more
2017Investigative Radiology48 citations Open access
Semantic Scholar
Long-term control and partial remission after initial pseudoprogression of glioblastoma by anti-PD-1 treatment with nivolumab.
P. Roth, A. Valavanis, M. Weller
2016Neuro-Oncology47 citations Open access
Semantic Scholar
The collateral circulation in pediatric moyamoya disease
G. Baltsavias, N. Khan, A. Valavanis
2015Child's Nervous System47 citations Open access
Semantic Scholar
Iterative analysis of cerebrovascular reactivity dynamic response by temporal decomposition
C. V. van Niftrik, M. Piccirelli, O. Bozinov, A. Pangalu +6 more
2017Brain and Behavior46 citations Open access
Semantic Scholar
BOLD cerebrovascular reactivity as a novel marker for crossed cerebellar diaschisis
M. Sebök, C. V. van Niftrik, M. Piccirelli, O. Bozinov +8 more
2018Neurology44 citations Open access
Semantic Scholar
Cranial dural arteriovenous shunts. Part 1. Anatomy and embryology of the bridging and emissary veins
G. Baltsavias, V. Parthasarathi, E. Aydin, Rahman A. Al Schameri +2 more
2015Neurosurgical review43 citations Open access
Semantic Scholar
The AVICH Score: A Novel Grading System to Predict Clinical Outcome in Arteriovenous Malformation-Related Intracerebral Hemorrhage.
M. Neidert, M. Lawton, M. Mader, B. Seifert +4 more
2016World Neurosurgery42 citations
Semantic Scholar
Fine tuning breath‐hold‐based cerebrovascular reactivity analysis models
C. V. van Niftrik, M. Piccirelli, O. Bozinov, A. Pangalu +3 more
2016Brain and Behavior35 citations Open access
Semantic Scholar
Clinically Isolated Neurosarcoidosis: A Recommended Diagnostic Path
S. Wegener, M. Linnebank, Roland Martin, A. Valavanis +1 more
2014European Neurology35 citations Open access
Semantic Scholar
Diffuse gliomas exhibit whole brain impaired cerebrovascular reactivity.
J. Fierstra, C. V. van Niftrik, M. Piccirelli, O. Bozinov +5 more
2018Magnetic Resonance Imaging34 citations Open access
Semantic Scholar
Endovascular treatment of 170 consecutive cranial dural arteriovenous fistulae: results and complications
G. Baltsavias, A. Valavanis
2013Neurosurgical review34 citations Open access
Semantic Scholar
Patterned Vascularization of Embryonic Mouse Forebrain, and Neuromeric Topology of Major Human Subarachnoidal Arterial Branches: A Prosomeric Mapping
L. Puelles, R. Martínez-Marin, Pedro Melgarejo-Otalora, A. Ayad +2 more
2019Frontiers in Neuroanatomy33 citations Open access
Semantic Scholar
Recent Technological Advances in Computed Tomography and the Clinical Impact Therein
V. Runge, Herman P. Marquez, G. Andreisek, A. Valavanis +1 more
2015Investigative Radiology32 citations
Semantic Scholar
Magnetic Resonance Imaging and Computed Tomography of the Brain—50 Years of Innovation, With a Focus on the Future
V. Runge, S. Aoki, W. Bradley, K. Chang +4 more
2015Investigative Radiology31 citations Open access
Semantic Scholar
Impact of baseline CO2 on Blood-Oxygenation-Level-Dependent MRI measurements of cerebrovascular reactivity and task-evoked signal activation.
C. V. van Niftrik, M. Piccirelli, O. Bozinov, N. Maldaner +5 more
2018Magnetic Resonance Imaging30 citations Open access
Semantic Scholar
Altered intraoperative cerebrovascular reactivity in brain areas of high-grade glioma recurrence.
J. Fierstra, B. van Niftrik, M. Piccirelli, J. Burkhardt +6 more
2016Magnetic Resonance Imaging30 citations Open access
Semantic Scholar
Cranial dural arteriovenous shunts. Part 3. Classification based on the leptomeningeal venous drainage
G. Baltsavias, P. Roth, A. Valavanis
2015Neurosurgical review28 citations Open access
Semantic Scholar
Silicone models as basic training and research aid in endovascular neurointervention—a single-center experience and review of the literature
S. Paramasivam, G. Baltsavias, E. Psatha, G. Matis +1 more
2014Neurosurgical review25 citations Open access
Semantic Scholar
Cranial dural arteriovenous shunts. Part 2. The shunts of the bridging veins and leptomeningeal venous drainage
G. Baltsavias, Rahul Kumar, K. Avinash, A. Valavanis
2015Neurosurgical review21 citations Open access
Semantic Scholar
Clinical Imaging of the Cerebello-Pontine Angle
A. Valavanis, O. Schubiger, T. Naidich
2011Springer Berlin Heidelberg21 citations
Semantic Scholar
Combining magnetic resonance measurements with numerical simulations - Extracting blood flow physiology information relevant to the investigation of intracranial aneurysms in the circle of Willis
Dorothea I. Zuleger, D. Poulikakos, A. Valavanis, S. Kollias
201021 citations
Semantic Scholar
Safety and efficacy of balloon angioplasty in symptomatic intracranial stenosis: A systematic review and meta-analysis.
K. Kadooka, N. Hagenbuch, Vania Anagnostakou, A. Valavanis +1 more
2020Journal of neuroradiology. Journal de neuroradiologie20 citations
Semantic Scholar
Post-operative cardiovascular complications and time to recurrence in meningioma patients treated with versus without pre-operative embolization: a retrospective cohort study of 741 patients
H. Wirsching, Johannes K. Richter, F. Sahm, C. Morel +5 more
2018Journal of Neuro-Oncology19 citations Open access
Semantic Scholar
Cranial dural arteriovenous shunts. Part 4. Clinical presentation of the shunts with leptomeningeal venous drainage
G. Baltsavias, Alex Spiessberger, T. Hothorn, A. Valavanis
2015Neurosurgical review18 citations Open access
Semantic Scholar
Fatal Cerebral Venous Air Embolism During Endoscopic Retrograde Cholangiopancreatography—Case Report and Review of the Literature
C. Nern, D. Bellut, N. Husain, A. Pangalu +2 more
2012Clinical Neuroradiology18 citations Open access
Semantic Scholar
Dual-Energy Computed Tomography in Stroke Imaging: Technical and Clinical Considerations of Virtual Noncontrast Images for Detection of the Hyperdense Artery Sign
S. Winklhofer, Ilaria Vittoria De Martini, C. Nern, I. Blume +5 more
2017Journal of computer assisted tomography17 citations Open access
Semantic Scholar
Etoposide/carboplatin chemotherapy for the treatment of metastatic myxomatous cerebral aneurysms
M. Branscheidt, K. Frontzek, O. Bozinov, A. Valavanis +3 more
2014Journal of Neurology17 citations Open access
Semantic Scholar
Selective and Superselective Angiography of Pediatric Moyamoya Disease Angioarchitecture in the Posterior Circulation
G. Baltsavias, N. Khan, V. Filipče, A. Valavanis
201416 citations Open access
Semantic Scholar
Cardiac-gated intravoxel incoherent motion diffusion-weighted magnetic resonance imaging for the investigation of intracranial cerebrospinal fluid dynamics in the lateral ventricle: a feasibility study
Eddie Surer, Cristina Rossi, A. Becker, Tim Finkenstaedt +3 more
2018Neuroradiology15 citations
Semantic Scholar
Amyotrophic lateral sclerosis after embolization of cerebral arterioveneous malformations
A. Valavanis, U. Schwarz, C. Baumann, M. Weller +1 more
2014Journal of Neurology15 citations Open access
Semantic Scholar
«Interventional Neuroradiology: A Neuroscience Sub-Specialty?»
G. Rodesch, L. Picard, A. Berenstein, A. Biondi +19 more
2013Interventional Neuroradiology15 citations Open access
Semantic Scholar
Feasibility and safety of intraoperative BOLD functional MRI cerebrovascular reactivity to evaluate extracranial-to-intracranial bypass efficacy.
G. Muscas, Christiaan Hendrik Bas van Niftrik, J. Fierstra, M. Piccirelli +6 more
2019Neurosurgical Focus14 citations Open access
Semantic Scholar
Transvascular in vivo microscopy of the subarachnoid space
V. Anagnostakou, M. Epshtein, Giovanni J. Ughi, R. King +3 more
2022Journal of NeuroInterventional Surgery13 citations Open access
Semantic Scholar
Blood oxygen‐level dependent functional assessment of cerebrovascular reactivity: Feasibility for intraoperative 3 Tesla MRI
J. Fierstra, J. Burkhardt, C. V. van Niftrik, M. Piccirelli +6 more
2017Magnetic Resonance in Medicine12 citations Open access
Semantic Scholar
The voxel-wise analysis of false negative fMRI activation in regions of provoked impaired cerebrovascular reactivity
C. V. van Niftrik, M. Piccirelli, G. Muscas, M. Sebök +6 more
2019PLoS ONE11 citations Open access
Semantic Scholar
Intra-arterial administration of papaverine during mechanical thrombectomy for acute ischemic stroke.
G. Baltsavias, Susmitha Yella, Rahman Abdul Al Shameri, A. Luft +1 more
2015Journal of Stroke & Cerebrovascular Diseases11 citations
Semantic Scholar
The Pharyngo-Tympano-Stapedial Variant of the Middle Meningeal Artery
Gerasimos Baltsavias, R. Kumar, A. Valavanis
2012Interventional Neuroradiology11 citations Open access
Semantic Scholar
Addition of lomustine for bevacizumab-refractory recurrent glioblastoma
Michaela Tonder, G. Eisele, T. Weiss, S. Hofer +5 more
2014Acta oncologica10 citations Open access
Semantic Scholar
Persistent ventral ophthalmic artery associated with supraclinoid internal carotid artery aneurysm: case report and review of the literature.
G. Baltsavias, Yaşar Türk, A. Valavanis
2012Journal of neuroradiology. Journal de neuroradiologie10 citations
Semantic Scholar
Cranial dural arteriovenous shunts: selection of the ideal lesion for surgical occlusion according to the classification system
G. Baltsavias, A. Valavanis, L. Regli
2019Acta Neurochirurgica9 citations
Semantic Scholar
Selective and Superselective Angiography of Pediatric Moyamoya Disease Angioarchitecture: The Anterior Circulation
G. Baltsavias, A. Valavanis, V. Filipče, N. Khan
20149 citations Open access
Semantic Scholar
Endovascular Occlusion of a Lacerated Primitive Trigeminal Artery during Surgical Resection of Clival Chordoma
Gerasimos Baltsavias, A. Valavanis
2010Interventional Neuroradiology9 citations Open access
Semantic Scholar
Complications of Sigmoid Sinus Transvenous Occlusion for the Endovascular Treatment of Dural Arteriovenous Shunts with Emphasis on Inner Ear Dysfunction.
G. Baltsavias, Johannes K. Richter, S. Hegemann, A. Valavanis
2016World Neurosurgery6 citations
Semantic Scholar

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