Abstract

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At the request of Sage, the authors, and the Journal Editors, the following article has been retracted:
Nomura T, Niwa T, Ozawa S, et al. Visibility of bronchial arteries using virtual and advanced virtual monoenergetic imaging. Acta Radiol 2020; 61: 1618–1627. DOI: 10.1177/0284185120923992
The corresponding author contacted Acta Radiologica to request a retraction of this article. Due to a miscommunication with the Institutional Review Board for Clinical Research at Tokai University the study was conducted without ethical approval.
The institutional review board issued a “conditional approval” that was reliant on revisions to the study design and was subject to re-review by the board. These revisions were not implemented and consequently, this study did not receive ethical approval.
Due to the lack of ethical approval in place for this research, this article has been retracted. T.N. agreed to the retraction text, all other authors did not respond for comment when notified of this decision.
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Supplementary Material
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