Color-coded circulation is a display method that generates dynamic color-coded images based on the time of arrival of contrast agents using parametric imaging to create video displays. By cyclically displaying information in color according to the arrival time of the contrast agent at each pixel, anatomical blood vessel paths and blood flow information can be simultaneously visualized. Three-dimensional (3D) helical stents increase wall shear stress due to swirling flow and prevent intimal hyperplasia. To the best of our knowledge, there are no reports on the visualization of this swirling flow using color-coded circulation. Here, we report the use of color-coded circulation to visualize the swirling flow following the placement of a 3D helical stent in the left superficial femoral artery. Color-coded circulation may facilitate the evaluation of contrast agent distribution and blood flow, which may otherwise go undetected with digital subtraction angiography.
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http://dx.doi.org/10.1016/j.radcr.2024.07.089 | DOI Listing |
BMC Med Imaging
January 2025
Department of Intervention, The First Affiliated Hospital of China Medical University,No.155 The Nanjing North street, Heping District, Shenyang, Liaoning, 110000, P.R. China.
Objective: This study aimed to evaluate the diagnostic value of ColorViz fused images from multi-phase computed tomography angiography (mCTA) using GE Healthcare's FastStroke software for newly diagnosed cerebral infarctions in patients with acute ischemic stroke (AIS).
Methods: A total of 106 AIS patients with unilateral anterior circulation occlusion were prospectively enrolled. All patients underwent mCTA scans during the arterial peak phase, venous peak phase, and venous late phase.
Physiol Rep
January 2025
Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Bruxelles, Belgium.
The effect of acetazolamide on regional brain tissue oxygenation in patients with acute brain injury (ABI) is unknown. We studied adult patients with ABI who received acetazolamide as per the treating physician's decision and had ICP and brain oxygen pressure (PbtO) monitoring. Baseline measurements of ICP, cerebral perfusion pressure (CPP), and PbtO were taken before administering acetazolamide; subsequent measurements were recorded every 5 min for a total of 20 min.
View Article and Find Full Text PDFJ Neurosci Res
December 2024
Department of Neurology, Tokyo Woman's Medical University School of Medicine, Shinjuku, Japan.
Remote ischemic conditioning (RIC) has attracted considerable attention as a brain protection strategy, although its impact remains unclear. Hypothermia is the most effective strategy in experimental transient cerebral ischemia. Therefore, we compared the efficacy of RIC, hypothermia, and no treatment on cerebral ischemia.
View Article and Find Full Text PDFJ Vet Emerg Crit Care (San Antonio)
December 2024
Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina.
Objective: To evaluate the changes in flow velocities of the middle cerebral artery before and after a carotid compression maneuver using transcranial color-coded duplex sonography (TCCD) in healthy anesthetized dogs under mechanical ventilation.
Design: Prospective study.
Setting: University teaching hospital.
Eur J Radiol
December 2024
Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; Mental Health and Neuroscience Research Institute (MHeNs), University Maastricht, Maastricht, the Netherlands.
Background: CT perfusion angiographic reconstructions (CTP-AR), derived at the peak arterial inflow, have demonstrated similar diagnostic accuracy to CTA for occlusion detection in the anterior circulation. Colour-coded CTP maps may aid in localizing an occlusion. This study aim to assess the additional value of CTP maps for occlusion detection in ischemic stroke patients assessed with CTA or CTP-AR.
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