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Improved Turnaround Times | Median time to first decision: 12 days

Research ArticlePatient SafetyE

Cumulative Radiation Dose during Hospitalization for Aneurysmal Subarachnoid Hemorrhage

S.I. Moskowitz, W.J. Davros, M.E. Kelly, D. Fiorella, P.A. Rasmussen and T.J. Masaryk
American Journal of Neuroradiology September 2010, 31 (8) 1377-1382; DOI: https://doi.org/10.3174/ajnr.A2132
S.I. Moskowitz
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W.J. Davros
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M.E. Kelly
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D. Fiorella
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P.A. Rasmussen
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T.J. Masaryk
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    Fig 1.

    Histogram graphing the distribution of patients by cumulative radiation dose (in grays).

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    Fig 2.

    Contribution of various modes of imaging to the cumulative radiation doses. Interventional and diagnostic procedures are divided by angiographic runs and fluoroscopy.

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    Fig 3.

    Comparison of the cumulative radiation doses between patients treated with either surgical clipping or coil embolization of the index aneurysm.

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    Fig 4.

    Comparison of the cumulative radiation as divided by Hunt and Hess grades, Fisher scores, number of cerebral aneurysms identified, or aneurysm size. Aneurysms with the largest diameter measuring >10 mm are considered large.

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    Fig 5.

    Scatterplot of cumulative radiation dose by length of hospitalization. A linear regression curve is best fit to the data (R = 0.45, P = NS).

Tables

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  • Radiation-reduction techniques (in grays)a

    Mean% ReductionMinimumMaximum
    Unmodified12.8 ± 7.72.436.1
    Fixed replacing portable CT12.5 ± 7.52.32.235.3
    Low-dose portable CT12.6 ± 7.51.92.235.5
    CTA replacing DSA12.2 ± 7.64.90.335.5
    MRI replacing CT12.0 ± 7.36.60.334.2
    Lower fluoroscopy rate11.3 ± 6.811.62.432.7
    3.6–2.7 μGy per frame11.0 ± 6.513.82.431.1
    3.6–1.8 μGy per frame9.1 ± 5.329.12.326.7
    All above6.4 ± 4.056.60.018.7
    • a Calculated dose based on individual specific modifications of imaging techniques as described in the text. Dose was calculated for each patient and individual study and reported for the collective group.

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American Journal of Neuroradiology: 31 (8)
American Journal of Neuroradiology
Vol. 31, Issue 8
1 Sep 2010
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Cumulative Radiation Dose during Hospitalization for Aneurysmal Subarachnoid Hemorrhage
S.I. Moskowitz, W.J. Davros, M.E. Kelly, D. Fiorella, P.A. Rasmussen, T.J. Masaryk
American Journal of Neuroradiology Sep 2010, 31 (8) 1377-1382; DOI: 10.3174/ajnr.A2132
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  • Patient Radiation Dose Management in the Follow-Up of Potential Skin Injuries in Neuroradiology
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  • Cumulative Radiation Dose in Patients with Aneurysmal Subarachnoid Hemorrhage
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Cite this article
S.I. Moskowitz, W.J. Davros, M.E. Kelly, D. Fiorella, P.A. Rasmussen, T.J. Masaryk
Cumulative Radiation Dose during Hospitalization for Aneurysmal Subarachnoid Hemorrhage
American Journal of Neuroradiology Sep 2010, 31 (8) 1377-1382; DOI: 10.3174/ajnr.A2132

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