Improved visualization of medium vessel occlusion stroke with time-variant color-coded multiphase CT angiography maps: A technical note - 21/10/21

Doi : 10.1016/j.neuri.2021.100003

Johanna M. Ospel ^a,^b,^c, Mayank Goyal ^a,^c,^{^⁎}
^a Department of Clinical Neurosciences, University of Calgary, Calgary, Canada
^b Department of Radiology, University Hospital of Basel, Basel, Switzerland
^c Department of Radiology, University of Calgary, Calgary, Canada

^⁎Corresponding author at: Departments of Radiology and Clinical Neurosciences, Foothills Medical Centre, 1403 29th St. NW, Calgary, AB, T2N2T9, Canada, University of Calgary, Calgary, AB, Canada.Departments of Radiology and Clinical NeurosciencesFoothills Medical Centre1403 29th St. NWCalgaryABT2N2T9Canada

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Highlights

•	Detecting MeVOs is challenging due to their distal location and small vessel size.
•	Color-coded time-variant multiphase CT angiography (mCTA) maps superimpose information from three CTA phases.
•	Color-coded time-variant mCTA maps facilitate rapid diagnosis and treatment of MeVO stroke.

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Abstract

Detecting medium vessel occlusions (MeVOs) is often challenging due to their distal location and small vessel size. Herein we describe an innovative imaging technique for fast and reliable MeVO detection: time-variant color-coded multiphase CTA. Three CTA phases of the intracranial vasculature are color-coded and displayed in a single summation image, which improves visualization of MeVOs through a color indicator effect, thereby substantially facilitating MeVO detection, particularly for readers with limited experience.

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Keywords : MeVO, Stroke, Stroke care, Ischemia, Thrombectomy, Imaging, Multiphase CTA

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Introduction

Technique

Image acquisition

Image co-registration, color-coding and fusion

Image interpretation

Discussion

Esportazione

Vol 1 - N° 1-2

Articolo 100003- Settembre 2021 Ritorno al numero

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Improved visualization of medium vessel occlusion stroke with time-variant color-coded multiphase CT angiography maps: A technical note - 21/10/21

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