ArticleNeuroradiology2009
Radiation dose from multidetector row CT imaging for acute stroke.
Article in Neuroradiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
59 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Diagnostic Yield of Cardiac CT to Detect Cardiac Thrombi in Patients With Acute Ischemic Stroke (AIS of HEARTS).Stroke · 2026Pooled it
- Clinical Applications of Conebeam CTP Imaging in Cerebral Disease: A Systematic Review.AJNR. American journal of neuroradiology · 2023Pooled it
- Comparative accuracy of CT perfusion in diagnosing acute ischemic stroke: A systematic review of 27 trials.PloS one · 2017Pooled it
- CTA collateral status and response to recanalization in patients with acute ischemic stroke.AJNR. American journal of neuroradiology · 2014Trial
- Low-dose high-pitch CT angiography of the supraaortic arteries using sinogram-affirmed iterative reconstruction.PloS one · 2014Trial
- Computed tomography angiography of the carotid arteries at low kV settings: a prospective randomised trial assessing radiation dose and diagnostic confidence.European radiology · 2011Trial
- Article
- Diagnostically competitive performance of a physiology-informed generative multi-task network for contrast-free CT perfusion.Frontiers in human neuroscience · 2026Article
- Article
- Optimizing Radiation Dose and Image Quality in Stroke CT Protocols: Proposed Diagnostic Reference Levels for Multiphase CT Angiography and Perfusion Imaging.Diagnostics (Basel, Switzerland) · 2024Article
- Semi-automatic computed tomography angiography quantification assessment is an alternative method to digital subtraction angiography in intracranial stenosis: a multicenter study.Quantitative imaging in medicine and surgery · 2024Article
- A comparative study of low voltage, low contrast cerebral computed tomography angiography with iterative reconstruction and conventional cerebral computed tomography angiography.The neuroradiology journal · 2024Article
- Infantile ischemic stroke secondary to profound arteriopathy.Journal of the American College of Emergency Physicians open · 2022Article
- What is the added value of CT-angiography in patients with transient ischemic attack?BMC neurology · 2022Article
- MR Perfusion in the Evaluation of Mechanical Thrombectomy Candidacy.Topics in magnetic resonance imaging : TMRI · 2021Review
- A dynamic simulation framework for CT perfusion in stroke assessment built from first principles.Medical physics · 2021Article
- Radiation exposure of computed tomography imaging for the assessment of acute stroke.Neuroradiology · 2021Article
- Safety of the effective radiation dose received during stroke hospitalization.Jornal vascular brasileiro · 2021Article
- Vertebral Artery Stenoses Contribute to the Development of Diffuse Plaques in the Basilar Artery.Frontiers in bioengineering and biotechnology · 2020Article
- Does including neck CTA in work-up of suspected intracranial hemorrhage add value?Emergency radiology · 2019Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe objective of this study was to determine the radiation dose delivered during comprehensive computed tomography (CT) imaging for acute stroke.
methodsAll CT examinations performed over 18 months using our acute stroke protocol were included. Protocol includes an unenhanced CT head, CT angiography from the arch to vertex, CT perfusion/permeability, and an enhanced CT head. All imaging was acquired with a 64-MDCT. Examinations where any element of the protocol was repeated or omitted due to mistimed injection or patient motion were excluded. Dose-length products (DLP) for all components of each examination were obtained from dose reports generated at the time of acquisition, separating neck, and head calculations. Effective doses for each examination were calculated using the DLP and normalized values of effective dose per DLP appropriate for the body regions imaged.
resultsNinety-five examinations were included. Mean DLP was 6,790.0 mGy x cm. Effective doses ranged from 11.8 to 27.3 mSv, mean effective dose of 16.4 mSv. Mean effective dose for acquisition of the unenhanced head was 2.7 mSv. Largest contribution to effective dose was the CTA with a mean effective dose of 5.4 mSv. Mean effective dose for the CT perfusion was 4.9 mSv.
conclusionA comprehensive CT acute stroke protocol delivered a mean effective dose of 16.4 mSv, which is approximately six times the dose of an unenhanced CT head. These high-dose results must be balanced with the benefits of the detailed anatomic and physiologic data obtained. Centers should implement aggressive dose reduction strategies and freely use MR as a substitute.
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Registered trials
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