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Noninvasive method using multidetector CT for calculating the relative blood supply ratio of duplicated renal arteries in renal donors

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Abstract

Purpose

The aim of this study was to evaluate the correlation between the renal artery cross-sectional area measured by multidetector computed tomography (MDCT) and the nephrogram area calculated by renal arteriography in potential living renal donors with duplicated renal arteries.

Materials and methods

Medical records of 18 patients with duplicated renal arteries who underwent both MDCT angiography and renal arteriography between 2001 and 2003 were retrospectively reviewed. All 20 kidneys were evaluated. Renal artery cross-sectional areas were measured using the workstation to which the CT data were transferred; the nephrogram areas on the digitized angiographic images were calculated using public domain software. Bland-Altman analysis was performed to compare the cross-sectional area ratio of the accessory arteries to the main renal arteries, with the ratios obtained from the nephrogram areas calculated from the arteriograms.

Results

The mean cross-sectional areas of the accessory and main renal arteries were 6.78 and 20.9 mm2, respectively. The ratio of the nephrogram areas calculated from the arteriograms ranged from 0.094 to 0.809. Bland-Altman analysis showed no significant difference.

Conclusion

It is possible to predict the supply volume of accessory renal arteries by measuring the cross-sectional area of the accessory and main renal arteries in potential living renal donors.

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Authors and Affiliations

  1. Department of Diagnostic and Interventional Radiology, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan

    Masatomo Kuwabara, Tonsok Kim & Hironobu Nakamura

  2. Department of Radiology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan

    Yoshifumi Narumi

  3. Department of Radiology, UMC Nijmegen, The Netherlands

    Satoru Takahashi

  4. Division of Image Analysis, Department of Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan

    Yoshinobu Sato

  5. Department of Diagnostic and Interventional Radiology, Kinki University School of Medicine, Osaka, Japan

    Takamichi Murakami

Authors
  1. Masatomo Kuwabara
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  2. Yoshifumi Narumi
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  3. Satoru Takahashi
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  4. Yoshinobu Sato
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  5. Tonsok Kim
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  6. Takamichi Murakami
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  7. Hironobu Nakamura
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Corresponding author

Correspondence to Masatomo Kuwabara.

Additional information

This article was presented at the 2004 Japan Radiological Society meeting.

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Kuwabara, M., Narumi, Y., Takahashi, S. et al. Noninvasive method using multidetector CT for calculating the relative blood supply ratio of duplicated renal arteries in renal donors. Radiat Med 24, 195–201 (2006). https://doi.org/10.1007/s11604-005-1544-y

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  • DOI: https://doi.org/10.1007/s11604-005-1544-y

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