Safety of the effective radiation dose received during stroke hospitalization

Neuroimaging is widely used for diagnosis and treatment of stroke. However, little is known about whether the radiation doses received by patients comply with international safety guidelines. The aim of this study was to evaluate the effective radiation dose received while in hospital for stroke and...

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Bibliographic Details
Published in:Jornal vascular brasileiro 2021-01, Vol.20, p.e20210142-e20210142
Main Authors: Canton, Gregório Platero, Luvizutto, Gustavo José, Hamamoto, Pedro Tadao, Minicucci, Marcos Ferreira, Modolo, Gabriel Pinheiro, Trindade, André Petean, Bazan, Rodrigo, de Souza, Juli Thomaz
Format: Article
Language:English
Subjects:
CARDIAC & CARDIOVASCULAR SYSTEMS
CT scan
Original
PERIPHERAL VASCULAR DISEASE
radiation
radioprotection
stroke
SURGERY
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Summary:Neuroimaging is widely used for diagnosis and treatment of stroke. However, little is known about whether the radiation doses received by patients comply with international safety guidelines. The aim of this study was to evaluate the effective radiation dose received while in hospital for stroke and analyze its safety according to current guidelines. This cross-sectional study included 109 patients who were hospitalized and diagnosed with ischemic stroke. The National Institutes of Health Stroke Scale was used to evaluate stroke severity, the Bamford clinical classification was used for topography, and the TOAST classification was used for etiology. The computed tomography dose index and size-specific dose estimates were used to calculate the effective radiation dose (ERD) received while in hospital. A Mann-Whitney test was used to compare the ERD received by thrombolysed and non-thrombolysed patients. Non-parametric statistics were used to analyze the data with a 95% confidence interval. During the study period, the median ERD received was 10.9 mSv. Length of stay was not associated with radiation exposure. No differences were demonstrated in ERD according to stroke etiology or Bamford clinical classification. Patients who had CT perfusion (only or in addition to CT or angiotomography) received the highest ERD (46.5 mSv) and the difference compared to those who did not (10.8 mSv) was statistically significant (p
ISSN:1677-5449
1677-7301
1677-7301
DOI:10.1590/1677-5449.210142