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Comparison of Patient Dose in Two-Dimensional Carotid Arteriography and Three-Dimensional Rotational Angiography

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Abstract

Background and Purpose

It is known that interventional neuroradiology (IN) involves high radiation dose to both patients and staff even if performed by trained operators using modern fluoroscopic X-ray equipment and dose-reducing technology. Therefore, every new technology or imaging tool introduced, such as three-dimensional rotational angiography (3D RA), should be evaluated in terms of radiation dose. 3D RA requires a series with a large number of images in comparison with 2D angiography and it is sometimes considered a high-dose IN procedure. The literature is scarce on the 3D RA radiation dose and in particular there are no data on carotid arteriography (CA). The aim of this study was to investigate patient dose differences between 2D and 3D CA.

Methods

The study included 35 patients undergoing 2D CA in hospital 1 and 25 patients undergoing 3D CA in hospital 2. Patient technical data collection included information on the kerma area product (KAP), fluoroscopy time (T), total number of series (S), and total number of acquired images (F).

Results

Median KAP was 112 Gy cm2 and 41 Gy cm2 for hospitals 1 and 2, respectively, median T was 8.2 min and 5.1 min, median S was 13 and 4, and median F was 247 and 242. Entrance surface air-kerma rate, as measured in “medium” fluoroscopy mode measured in 2D acquisition using a 20 cm phantom of polymethylmethacrylate, was 17.3 mGy/min for hospital 1 and 9.2 mGy/min for hospital 2.

Conclusion

3D CA allows a substantial reduction in patient radiation dose compared with 2D CA, while providing the necessary diagnostic information.

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Acknowledgments

This study was partially funded by the European Commission Coordination Action SENTINEL (FP6-012909) and the Spanish grant FIS2006-08186 (Ministry of Education and Science).

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Authors and Affiliations

  1. Medical Physics Department, Konstantopoulio Hospital, 1 Ifaistou Str, 14569, Anixi, Athens, Greece

    Virginia Tsapaki

  2. Department of Medical Physics Service and Radiology, San Carlos University Hospital and Complutense University, 28040, Madrid, Spain

    Eliseo Vano & Jose Miguel Fernandez

  3. Medical Physics Department, Athens General Hospital “G. Gennimatas”, 154 Mesogion Str, Athens, Greece

    Irini Μavrikou & Vassiliki Νeofotistou

  4. Diagnostic Radiology Service, San Carlos University Hospital, 28040, Madrid, Spain

    Juan Jose Gallego, Ernesto Santos & Jose Mendez

Authors
  1. Virginia Tsapaki
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  2. Eliseo Vano
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  3. Irini Μavrikou
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  4. Vassiliki Νeofotistou
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  5. Juan Jose Gallego
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  6. Jose Miguel Fernandez
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  7. Ernesto Santos
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  8. Jose Mendez
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Correspondence to Virginia Tsapaki.

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Tsapaki, V., Vano, E., Μavrikou, I. et al. Comparison of Patient Dose in Two-Dimensional Carotid Arteriography and Three-Dimensional Rotational Angiography. Cardiovasc Intervent Radiol 31, 477–482 (2008). https://doi.org/10.1007/s00270-007-9190-7

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  • DOI: https://doi.org/10.1007/s00270-007-9190-7

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