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CC BY-NC-ND 4.0 · The Arab Journal of Interventional Radiology 2020; 4(02): 102-106
DOI: 10.4103/AJIR.AJIR_24_20
Original Article

Adrenal Vein Sampling: Radiation Dose Reduction on New Angiography Platform

Ali Alsafi
Departments of Imaging, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, England
,
Florian Wernig
Endocrinology, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, England
,
Jeannie Todd
Endocrinology, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, England
,
Tricia Tan
Endocrinology, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, England
,
F. Fausto Palazzo
Department of Endocrineand Thyroid Surgery, Imperial College London, Hammersmith Hospital, London, England
,
Karim Meeran
Endocrinology, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, England
,
James E. Jackson
Departments of Imaging, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, England
› Author Affiliations
Financial support and sponsorship Nil.
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Objectives: Primary aldosteronism is one of the most common causes of secondary hypertension. Distinguishing unilateral from bilateral disease is essential as those with unilateral adrenal disease will benefit from adrenalectomy. This is best achieved by adrenal vein sampling (AVS) which may be a difficult procedure with significant radiation to both patient and operator. This study aims to measure the radiation dose during AVS before and after the installation of a new angiography platform. Materials and Methods: The dose area product (DAP), air kerma, and fluoroscopy time were collected retrospectively together with demographic data for the first ten patients who underwent AVS between April and September 2018 following the installation of the Philips Azurion 7 M20 interventional platform. These results were compared with those from ten patients who underwent AVS before the installation of the new machine using the Philips Allura Xper FD20 platform. Mann–Whitney test was used to compare DAP, air kerma, and fluoroscopy time. P < 0.05 was considered statistically significant. Results: Successful bilateral adrenal vein catheterization was achieved in all cases in both groups. There was no significant difference in fluoroscopy time: 5.5 (3.3–10.8) min (new) versus 5.3 (4.5–8.4) min (old) (P = 0.9502). The DAP and air kerma were both significantly lower on the new machine: 11.3 (5.2–26.7) Gy.cm2 versus 45.5 (17.2–56.5) Gy.cm2 (P = 0.0089) and 201.5 (88.1–464.0) mGy versus 682.5 (300.5–998.5) mGy (P = 0.0115), respectively. Conclusion: The installation of the Philips Azurion 7 M20 interventional platform has allowed a significant reduction in radiation dose during AVS.

Adrenal glands - dosimetry - hyperaldosteronism - interventional - radiation dosage - radiology - vascular surgical procedures


Publication History

Received: 06 January 2020
Received: 06 December 2020

Accepted: 06 December 2020

Article published online:
26 March 2021

© 2020. The Arab Journal of Interventional Radiology. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. https://creativecommons.org/licenses/by-nc-nd/4.0/.

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