Received: 4 May 2022
Accepted: 14 September 2022
First Online: 31 October 2022
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. All patients gave written informed consent for lung perfusion imaging. The Ethics Committee at the Ludwig-Maximilians-University Munich, Germany exempted this retrospective, non-interventional observational study with a waiver of patient informed consent on May 20, 2021.
: Not Applicable, as there are no identifying images or other personal or clinical details of study participants that compromise anonymity.
: All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.