Exchange of Quantitative Computed Tomography Assessed Body Composition Data Using Fast Healthcare Interoperability Resources as a Necessary Step Toward Interoperable Integration of Opportunistic Screening Into Clinical Practice: Methodological Development Study

Yutong Wen   ^{1, 2} , MSc ;   Vin Yeang Choo   ^{1, 2} , BSc ;   Jan Horst Eil   ² , MSc ;   Sylvia Thun   ³ , MD ;   Daniel Pinto dos Santos   ⁴ , MD ;   Johannes Kast   ^{5, 6} , Dipl. Inf. ;   Stefan Sigle   ⁷ , PhD ;   Hans-Ulrich Prokosch   ⁸ , PhD ;   Diana Lizzhaid Ovelgönne   ⁹ , BSc ;   Katarzyna Borys   ^{2, 10} , MSc ;   Judith Kohnke   ^{2, 10} , MSc ;   Kamyar Arzideh   ^{1, 2} , MSc ;   Philipp Winnekens   ^{1, 2} , MSc ;   Giulia Baldini   ² , PhD ;   Cynthia Sabrina Schmidt   ^{2, 11, 12} , MD ;   Johannes Haubold   ^{2, 10} , MD ;   Felix Nensa   ^{2, 10} , MD ;   Obioma Pelka   ^{2, 10 *} , PhD ;   René Hosch   ^{2, 10 *} , PhD

¹ Data Integration Center, Central IT Department, University Hospital Essen, Essen, Germany

² Institute for Artificial Intelligence in Medicine (IKIM), University Hospital Essen, Essen, Germany

³ Digital Medicine and Interoperability, Berlin Institute of Health (BIH) at Charité - University Hospital Berlin, Berlin, Germany

⁴ University Medical Center Mainz, Mainz, Germany

⁵ Mint Medical GmbH (a Brainlab company), Heidelberg, Germany

⁶ Gematik Expert Group, Gematik GmbH, Berlin, Germany

⁷ MOLIT Institut für personalisierte Medizin gGmbH, Heilbronn, Germany

⁸ Institut für Medizininformatik, Biometrie und Epidemiologie Lehrstuhl für Medizinische Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany

⁹ Siemens Healthineers AG, Forchheim, Germany

¹⁰ Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany

¹¹ Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany

¹² Center of Sleep and Telemedicine, University Hospital Essen-Ruhrlandklinik, Essen, Germany

*these authors contributed equally