ArticleAJNR. American journal of neuroradiology2019
A Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot Study.
Article in AJNR. American journal of neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 22 citations in OpenAlex.
- Multiphase CTA vs. MRA collateral map for predicting functional outcomes after acute ischemic stroke.Neuroradiology · 2025Observational
- The CT collateral map: collateral perfusion estimation and baseline lesion assessment after acute anterior circulation ischemic stroke.La Radiologia medica · 2025Observational
- Clinical feasibility of deep learning-driven magnetic resonance angiography collateral map in acute anterior circulation ischemic stroke.Scientific reports · 2025Article
- Evaluation of cortical venous drainage in patients with Acute Ischemic Stroke.Frontiers in neuroscience · 2025Review
- The collateral map: prediction of lesion growth and penumbra after acute anterior circulation ischemic stroke.European radiology · 2024Article
- Multiphase MR angiography collateral map in brain stroke: may we shift the time from an absolute to the relative for therapy decisions?European radiology · 2024Article
- Impact of Collateral Circulation on Futile Endovascular Thrombectomy in Acute Anterior Circulation Ischemic Stroke.Journal of Korean Neurosurgical Society · 2024Article
- Deep Learning-Based Synthetic TOF-MRA Generation Using Time-Resolved MRA in Fast Stroke Imaging.AJNR. American journal of neuroradiology · 2023Article
- Prognostic value of collateral perfusion estimation by arterial spin labeling for acute anterior circulation ischemic stroke.Neuroradiology · 2023Observational
- MR Angiography in Assessment of Collaterals in Patients with Acute Ischemic Stroke: A Comparative Analysis with Digital Subtraction Angiography.Brain sciences · 2022Article
- Dynamic contrast-enhanced (DCE) imaging: state of the art and applications in whole-body imaging.Japanese journal of radiology · 2022Review
- Imaging in Acute Anterior Circulation Ischemic Stroke: Current and Future.Neurointervention · 2022Review
- Collateral estimation by susceptibility-weighted imaging and prediction of functional outcomes after acute anterior circulation ischemic stroke.Scientific reports · 2021Article
- Article
- Deep regression neural networks for collateral imaging from dynamic susceptibility contrast-enhanced magnetic resonance perfusion in acute ischemic stroke.International journal of computer assisted radiology and surgery · 2020Article
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Authors and funding
11 authors at 7 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
background and purposeAssessment of the collateral status has been emphasized for appropriate treatment decisions in patients with acute ischemic stroke. The purpose of this study was to introduce a multiphase MRA collateral imaging method (collateral map) derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. MATERIALS AND
methodsFrom a prospectively maintained registry of acute ischemic stroke, MR imaging data of patients with acute ischemic stroke caused by steno-occlusive lesions of the unilateral ICA and/or the M1 segment of the MCA were analyzed. We generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested.
resultsSeventy-one paired multiphase MRA and MRP collateral maps from 67 patients were analyzed. The interobserver reliabilities for collateral grading using multiphase MRA or MRP collateral maps were excellent (weighted κ = 0.964 and 0.956, respectively). The agreement between both collateral maps was also excellent (weighted κ = 0.884; 95% confidence interval, 0.819-0.949).
conclusionsWe demonstrated that the dynamic signals of dynamic contrast-enhanced MRA could be used to generate multiphase collateral images and showed the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
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