3T non-injected phase-contrast MRI sequences for the mapping of the external carotid branches: In vivo radio-anatomical pilot study for feasibility analysis

2018 ◽  
Vol 46 (1) ◽  
pp. 98-106 ◽  
Author(s):  
Jérémie Bettoni ◽  
Gwénaël Pagé ◽  
Anne-Virginie Salsac ◽  
Jean-Marc Constans ◽  
Sylvie Testelin ◽  
...  
Keyword(s):  
Pilot Study ◽  
Phase Contrast ◽  
Feasibility Analysis ◽  
External Carotid ◽  
Phase Contrast Mri ◽  
Mri Sequences

In vivo time-resolved quantitative motion mapping of the murine myocardium with phase contrast MRI

2003 ◽  
Vol 49 (2) ◽  
pp. 315-321 ◽  
Author(s):  
J�rg U.G. Streif ◽  
Volker Herold ◽  
Michael Szimtenings ◽  
Titus E. Lanz ◽  
Matthias Nahrendorf ◽  
...  
Keyword(s):  
Phase Contrast ◽  
Phase Contrast Mri ◽  
Time Resolved

scholarly journals Assessment of fluctuating velocities in disturbed cardiovascular blood flow: In vivo feasibility of generalized phase-contrast MRI

2008 ◽  
Vol 28 (3) ◽  
pp. 655-663 ◽  
Author(s):  
Petter Dyverfeldt ◽  
John-Peder Escobar Kvitting ◽  
Andreas Sigfridsson ◽  
Jan Engvall ◽  
Ann F. Bolger ◽  
...  
Keyword(s):  
Blood Flow ◽  
Phase Contrast ◽  
Phase Contrast Mri ◽  
Cardiovascular Blood Flow

IN VIVO QUANTITATIVE ANALYSIS OF HELICAL FLOW IN AORTA USING 3D PHASE CONTRAST MRI

2008 ◽  
Vol 41 ◽  
pp. S295
Author(s):  
Umberto Morbiducci ◽  
Raffaele Ponzini ◽  
Giovanna Rizzo ◽  
Marcello Cadioli ◽  
Diana Massai ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Phase Contrast ◽  
Helical Flow ◽  
Phase Contrast Mri

Notice of Removal: In-vivo 3D cardiac vector flow imaging — A comparison between ultrasound and phase-contrast MRI

2017 ◽  
Author(s):  
Morten Wigen ◽  
Alfonso Rodriguez-Molares ◽  
Tore Bjastad ◽  
Marius Eriksen ◽  
Knut Hakon Stensath ◽  
...  
Keyword(s):  
Phase Contrast ◽  
Flow Imaging ◽  
Phase Contrast Mri ◽  
Cardiac Vector

scholarly journals Comparison of 4D flow and 2D velocity-encoded phase contrast MRI sequences for the evaluation of aortic hemodynamics

2016 ◽  
Vol 32 (10) ◽  
pp. 1529-1541 ◽  
Author(s):  
Emilie Bollache ◽  
Pim van Ooij ◽  
Alex Powell ◽  
James Carr ◽  
Michael Markl ◽  
...  
Keyword(s):  
Phase Contrast ◽  
4D Flow ◽  
Phase Contrast Mri ◽  
Mri Sequences ◽  
Aortic Hemodynamics

Quantification of vessel wall motion and cyclic strain using cine phase contrast MRI: In vivo validation in the porcine aorta

2004 ◽  
Vol 52 (2) ◽  
pp. 286-295 ◽  
Author(s):  
Mary T. Draney ◽  
Frank R. Arko ◽  
Marcus T. Alley ◽  
Michael Markl ◽  
Robert J. Herfkens ◽  
...  
Keyword(s):  
Vessel Wall ◽  
Phase Contrast ◽  
Wall Motion ◽  
Cyclic Strain ◽  
Phase Contrast Mri ◽  
Cine Phase Contrast ◽  
In Vivo Validation

scholarly journals Direction and magnitude of cerebrospinal fluid flow vary substantially across central nervous system diseases

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Per Kristian Eide ◽  
Lars Magnus Valnes ◽  
Erika Kristina Lindstrøm ◽  
Kent-Andre Mardal ◽  
Geir Ringstad
Keyword(s):  
Central Nervous System ◽  
Cerebrospinal Fluid ◽  
Nervous System ◽  
Phase Contrast ◽  
Flow Volume ◽  
Nervous System Diseases ◽  
Central Nervous System Diseases ◽  
Csf Flow ◽  
Phase Contrast Mri

Abstract Background Several central nervous system diseases are associated with disturbed cerebrospinal fluid (CSF) flow patterns and have typically been characterized in vivo by phase-contrast magnetic resonance imaging (MRI). This technique is, however, limited by its applicability in space and time. Phase-contrast MRI has yet to be compared directly with CSF tracer enhanced imaging, which can be considered gold standard for assessing long-term CSF flow dynamics within the intracranial compartment. Methods Here, we studied patients with various CSF disorders and compared MRI biomarkers of CSF space anatomy and phase-contrast MRI at level of the aqueduct and cranio-cervical junction with dynamic intrathecal contrast-enhanced MRI using the contrast agent gadobutrol as CSF tracer. Tracer enrichment of cerebral ventricles was graded 0–4 by visual assessment. An intracranial pressure (ICP) score was used as surrogate marker of intracranial compliance. Results The study included 94 patients and disclosed marked variation of CSF flow measures across disease categories. The grade of supra-aqueductal reflux of tracer varied, with strong reflux (grades 3–4) in half of patients. Ventricular tracer reflux correlated with stroke volume and aqueductal CSF pressure gradient. CSF flow in the cerebral aqueduct was retrograde (from 4th to 3rd ventricle) in one third of patients, with estimated CSF net flow volume about 1.0 L/24 h. In the cranio-cervical junction, net flow was cranially directed in 78% patients, with estimated CSF net flow volume about 4.7 L/24 h. Conclusions The present observations provide in vivo quantitative evidence for substantial variation in direction and magnitude of CSF flow, with re-direction of aqueductal flow in communicating hydrocephalus, and significant extra-cranial CSF production. The grading of ventricular reflux of tracer shows promise as a clinical useful method to assess CSF flow pattern disturbances in patients. Graphic abstract

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