Aqueductal cerebrospinal fluid pulsatility in healthy individuals is affected by impaired cerebral venous outflow

…, SJ Shepherd, K Marr, V Valnarov… - Journal of Magnetic …, 2014 - Wiley Online Library
Purpose To investigate cerebrospinal fluid (CSF) dynamics in the aqueduct of Sylvius (AoS)
in chronic cerebrospinal venous insufficiency (CCSVI)‐positive and ‐negative healthy …

Prospective randomized trial of venous angioplasty in MS (PREMiSe)

…, Y Karmon, J Yu, ML Hartney, KL Marr, V Valnarov… - Neurology, 2014 - AAN Enterprises
Objective: We report the results of the investigation of safety and efficacy of venous angioplasty
in patients with multiple sclerosis (MS) with findings of extracranial venous anomalies, …

[HTML][HTML] Risk factors for chronic cerebrospinal venous insufficiency (CCSVI) in a large cohort of volunteers

K Dolic, B Weinstock-Guttman, K Marr, V Valnarov… - PLoS …, 2011 - journals.plos.org
Background The role of intra- and extra-cranial venous system impairment in the pathogenesis
of various vascular, inflammatory and neurodegenerative neurological disorders, as well …

Intra-and extraluminal structural and functional venous anomalies in multiple sclerosis, as evidenced by 2 noninvasive imaging techniques

K Dolic, K Marr, V Valnarov… - American Journal …, 2012 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Chronic cerebrospinal venous insufficiency (CCSVI) is a
vascular condition characterized by anomalies of the main extracranial cerebrospinal venous …

Comparison of intravascular ultrasound with conventional venography for detection of extracranial venous abnormalities indicative of chronic cerebrospinal venous …

…, B Weinstock-Guttman, K Marr, V Valnarov… - Journal of vascular and …, 2013 - Elsevier
Purpose To investigate prevalence of extracranial abnormalities in azygos and internal jugular
(IJ) veins using conventional venography and intravascular ultrasound (IVUS) in patients …

[HTML][HTML] Sensitivity and specificity for screening of chronic cerebrospinal venous insufficiency using a multimodal non-invasive imaging approach in patients with …

K Dolic, K Marr, V Valnarov, MG Dwyer, E Carl… - Functional …, 2011 - ncbi.nlm.nih.gov
The aim of this study was to investigate whether a combination of Doppler sonography (DS)
and magnetic resonance venography (MRV) on 3T MRI increases specificity for detection of …

Heart disease, overweight, and cigarette smoking are associated with increased prevalence of extra-cranial venous abnormalities

…, B Weinstock-Guttman, K Marr, V Valnarov… - Neurological …, 2012 - Taylor & Francis
Objectives: Most of the extra-cranial venous abnormalities have been previously described
as truncular venous malformations. In this hypothesis-driven study, we evaluated possible …

[HTML][HTML] Multimodal noninvasive and invasive imaging of extracranial venous abnormalities indicative of CCSVI: results of the PREMiSe pilot study

…, Y Karmon, K Dolic, J Hagemeier, K Marr, V Valnarov… - Bmc neurology, 2013 - Springer
Background There is no established noninvasive or invasive diagnostic imaging modality at
present that can serve as a ‘gold standard’ or “benchmark” for the detection of the venous …

[HTML][HTML] Chronic cerebrospinal venous insufficiency is not associated with cognitive impairment in multiple sclerosis

…, B Weinstock-Guttmam, K Marr, V Valnarov… - BMC medicine, 2013 - Springer
Background Chronic cerebrospinal venous insufficiency (CCSVI) has been reported in multiple
sclerosis (MS) yet its significance in relation to cognitive function is undetermined. This …

Risk Factors for Chronic Cerebrospinal Venous Insufficiency (CCSVI)(P05. 127)

K Dolic, B Weinstock-Guttman, K Marr, V Valnarov… - 2012 - AAN Enterprises
Objective: To investigate the association between presence of a newly proposed vascular
condition called chronic cerebrospinal venous insufficiency (CCSVI) and environmental …