ArticleAJNR. American journal of neuroradiology2022
Transcranial Doppler Velocities and Angiographic Vasospasm after SAH: A Diagnostic Accuracy Study.
Article in AJNR. American journal of neuroradiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Diagnostic accuracy of transcranial Doppler for cerebral vasospasm in aneurysmal subarachnoid hemorrhage: a systematic review and meta-analysis.Critical care (London, England) · 2026Pooled it
- Everybody Complains about Vasospasm but Nobody Does Anything about It.Neurocritical care · 2026Article
- Article
- Agreement between CT-Angiography and Digital Subtraction Angiography in Predicting Angiographic Vasospasm in Patients with Subarachnoid Hemorrhage.Journal of clinical medicine · 2024Article
- Transcranial Doppler in the Detection of Cerebral Vasospasm After Subarachnoid Hemorrhage.Cureus · 2024Article
- CTA Supplemented by CTP Increases Interrater Reliability and Endovascular Treatment Use in Patients with Aneurysmal SAH.AJNR. American journal of neuroradiology · 2024Article
- Intracranial dynamics biomarkers at traumatic cerebral vasospasm.Brain & spine · 2024Article
- Reply.AJNR. American journal of neuroradiology · 2022Article
- The Complementary Role of CT Perfusion and Transcranial Doppler in the Assessment of Delayed Cerebral Ischemia after Aneurysmal SAH.AJNR. American journal of neuroradiology · 2022Article
- Transcranial Doppler Arterial Pressure Gradient Is Associated With Delayed Infarction After Subarachnoid Hemorrhage.Journal of neuroimaging : official journal of the American Society of NeuroimagingObservational
Corrections and comments
- Commented on byReply.2022
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeAfter aneurysmal SAH, transcranial Doppler is commonly used to monitor cerebral vasospasm. The diagnostic accuracy of transcranial Doppler flow velocity values in detecting angiographic vasospasm in patients requiring urgent endovascular intervention has not been established. MATERIALS AND
methodsWe performed a retrospective analysis of a consecutive series of patients with aneurysmal SAH who underwent transcranial Doppler (index test) within 24 hours of conventional angiography (reference test). The judgment of 33%, 50%, and 66% degree of vessel narrowing on angiography was independently established by multiple neuroendovascular clinicians. Vessel-specific per-segment and per-patient transcranial Doppler velocities were studied using receiver operating characteristic curves, the Youden index, and minimal acceptable sensitivity models. Optimal mean flow-velocity thresholds were explored to calculate sensitivity and specificity using a per-patient judgment of vasospasm of at least 50% angiographic narrowing in any large arterial segment except A1.
resultsIn 221 patients, vasospasm was found in 15%, 8%, and 4% of arteries when the degree of reference angiographic luminal narrowing was 33%, 50%, and 66%, respectively. Mean flow velocities were significantly higher in vasospastic segments (
conclusionsIn this study, a threshold transcranial Doppler mean flow-velocity value that would accurately diagnose ≥50% angiographic vasospasm remained elusive.
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