ArticleThe neuroradiology journal2021
Limited usefulness of routine head and neck CT angiogram in the imaging assessment of dizziness in the emergency department.
Article in The neuroradiology journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 28 citations in OpenAlex.
- The Hemodynamic Trap: Fetal-Type Posterior Cerebral Artery and Occult PICA Aneurysms.Clinical case reports · 2026Article
- Brain computed tomography (CT) findings in patients with vertigo and without focal neurological abnormalities in the emergency department of a tertiary center in Saudi Arabia: a retrospective study.BMC emergency medicine · 2026Article
- Likelihood and Predictors of Acute Findings on CTA Head and Neck for Neurologic Presentations to the Emergency Department.Neurology. Clinical practice · 2026Article
- Temporal Trends in CT Angiography for Acute Stroke Symptoms.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2025Article
- Diagnostic yield of an abbreviated MRI protocol in the evaluation of dizziness in the emergency department, a single institutional experience.Emergency radiology · 2025Article
- Utility and Challenges of Imaging in Peripheral Vestibular Disorder Diagnosis: A Narrative Review.Diagnostics (Basel, Switzerland) · 2025Review
- Impact of a multi-modal intervention on CTA ordering rates in patients presenting with vertigo to the emergency department.Emergency radiology · 2025Article
- Detectability of acute ischemic stroke with thin (3 mm) axial versus thin (3 mm) coronal diffusion-weighted imaging in patients presenting to the emergency department with acute dizziness.Emergency radiology · 2025Article
- Abbreviated MRI in the evaluation of dizziness: report turnaround times and impact on length of stay compared to CT, CTA, and conventional MRI.Emergency radiology · 2024Article
- Consensus paper on the management of acute isolated vertigo in the emergency department.Internal and emergency medicine · 2024Article
- The "Vestibular Eye Sign"-"VES": a new radiological sign of vestibular neuronitis can help to determine the affected vestibule and support the diagnosis.Journal of neurology · 2023Article
- Major radiological outcomes of CTA head and neck performed for dizziness in a major academic Emergency Department.The neuroradiology journal · 2023Article
- Emergency Presentations for Dizziness-Radiological Findings, Final Diagnoses, and Mortality.International journal of clinical practice · 2023Article
- Association between vascular calcification in intracranial vertebrobasilar circulation and luminal stenosis.Neuroradiology · 2022Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo assess the usefulness of head and neck computed tomography angiogram for the investigation of isolated dizziness in the emergency department in detecting significant acute findings leading to a change in management in comparison to non-contrast computed tomography scan of the head.
methodsPatients presenting with isolated dizziness in the emergency department investigated with non-contrast computed tomography and computed tomography angiogram over the span of 36 months were included. Findings on non-contrast computed tomography were classified as related to the emergency department presentation versus unrelated/no significant abnormality. Similarly, computed tomography angiogram scans were classified as positive or negative posterior circulation findings.
resultsOne hundred and fifty-three patients were imaged as a result of emergency department presentation with isolated dizziness. Fourteen cases were diagnosed clinically as of central aetiology. Non-contrast computed tomography was positive in three patients, all with central causes with sensitivity 21.4%, specificity 100%, positive predictive value 100%, negative predictive value 92.6% and accuracy 92.8%. Computed tomography angiogram was positive for angiographic posterior circulation abnormalities in five cases, and only two of them had a central cause of dizziness, with sensitivity 14.3%, specificity 97.7%, positive predictive value 40%, negative predictive value 91.46% and accuracy 92.1%.
conclusionBoth non-contrast computed tomography and computed tomography angiogram of the head and neck have low diagnostic yield for the detection of central causes of dizziness, However, non-contrast computed tomography has higher sensitivity and positive predictive value than computed tomography angiogram, implying a lack of diagnostic advantage from the routine use of computed tomography angiogram in the emergency department for the investigation of isolated dizziness. Further studies are required to determine the role of computed tomography angiogram in the work-up of isolated dizziness in the emergency department.
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