ArticleJournal of neuroimaging : official journal of the American Society of Neuroimaging2017
Contrast Extravasation versus Hemorrhage after Thrombectomy in Patients with Acute Stroke.
Article in Journal of neuroimaging : official journal of the American Society of Neuroimaging, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.
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Who cites it
35 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Diagnostic accuracy of dual-energy computed tomography in the diagnosis of neurological complications after endovascular treatment of acute ischaemic stroke: a systematic review and meta-analysis.The British journal of radiology · 2024Pooled it
- Role of high-density area score in predicting outcomes of large-vessel occlusion stroke after endovascular treatment.European radiology · 2026Article
- Deep learning prediction of contrast extravasation versus intracranial hemorrhage after thrombectomy in patients with acute stroke.BMC medical imaging · 2026Article
- Contrast-Induced Neurotoxicity Following Mechanical Thrombectomy for Acute Left MCA Occlusion: A Reversible Radiological Mimic of Intracranial Haemorrhage.European journal of case reports in internal medicine · 2026Article
- The delayed spectral sign in Post-transfer CT imaging: an imaging marker of stroke severity and hemorrhagic risk.Neuroradiology · 2025Article
- Development and validation of a multi-omics hemorrhagic transformation model based on hyperattenuated imaging markers following mechanical thrombectomy.Scientific reports · 2025Article
- The Effectiveness of Deep Learning in the Differential Diagnosis of Hemorrhagic Transformation and Contrast Accumulation After Endovascular Thrombectomy in Acute Ischemic Stroke Patients.Diagnostics (Basel, Switzerland) · 2025Article
- Contrast enhancement after mechanical thrombectomy: clinical correlations and impact on outcomes.Acta neurologica Belgica · 2025Article
- Combinations of Clinical Factors, CT Signs, and Radiomics for Differentiating High-Density Areas after Mechanical Thrombectomy in Patients with Acute Ischemic Stroke.AJNR. American journal of neuroradiology · 2025Article
- Analysis of 90-day risk factors for poor prognosis in patients with postoperative CT with hyperdense signs after thrombectomy for acute ischemic stroke.Frontiers in neurology · 2025Article
- Article
- Incidence, Risk Factors, and Clinical Implications of Subarachnoid Hyperdensities on Flat-Panel Detector CT following Mechanical Thrombectomy in Patients with Anterior Circulation Acute Ischemic Stroke.AJNR. American journal of neuroradiology · 2024Article
- Determinants and Clinical Relevance of Iodine Contrast Extravasation after Endovascular Thrombectomy: A Dual-Energy CT Study.AJNR. American journal of neuroradiology · 2023Article
- Dual-Energy Computed Tomography in Stroke Imaging : Value of a New Image Acquisition Technique for Ischemia Detection after Mechanical Thrombectomy.Clinical neuroradiology · 2023Article
- Article
- CT-based radiomics for differentiating intracranial contrast extravasation from intraparenchymal haemorrhage after mechanical thrombectomy.European radiology · 2022Article
- Early Prediction of Malignant Edema After Successful Recanalization in Patients with Acute Ischemic Stroke.Neurocritical care · 2022Article
- Hyperattenuations on flat-panel computed tomography after successful recanalization of mechanical thrombectomy for anterior circulation occlusion.Quantitative imaging in medicine and surgery · 2022Article
- Feasibility of FDCT Early Brain Parenchymal Blood Volume Maps in Predicting Short-Term Prognosis in Patients With Aneurysmal Subarachnoid Hemorrhage.Frontiers in neurology · 2022Article
- A CT-based radiomics nomogram for classification of intraparenchymal hyperdense areas in patients with acute ischemic stroke following mechanical thrombectomy treatment.Frontiers in neuroscience · 2022Article
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2 authors.
Funding
Abstract
background and purposeIntra-arterial recanalization postprocedural imaging in stroke patients can result in diagnostic complications due to hyperdensities on noncontrast computed tomography (CT), which may represent either contrast extravasation or intracranial hemorrhage. If these lesions are hemorrhage, then they are risk factors becoming symptomatic, which, if not distinguished, can alter clinical management. We investigate the effects of iodinated contrast on postprocedural magnetic resonance imaging (MRI) and prevalence of equivocal imaging interpretations of postprocedural extravasated contrast versus hemorrhage while identifying protocol pitfalls.
methodsWe identified 10 patients diagnosed with ischemic stroke who underwent intra-arterial recanalization in a 5-year period. These patients demonstrated a hyperdensity on a postprocedural CT within 24 hours, underwent an MRI within 48 hours, and an additional confirmatory noncontrast CT at least 72 hours postprocedure.
resultsPostprocedural MRI in all 10 stroke patients demonstrated T
conclusionMRI done within 48 hours postprocedure can lead to false positive hemorrhage or false negative contrast extravasation interpretations in stroke patients possibly due to effects from the administered angiographic contrast. Additionally, MRI should be done both after 72 hours for confirmation and without gadolinium contrast as the effects of the gadolinium contrast and residual angiographic contrast could lead to misdiagnosis.
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