X-ray dark-field chest imaging for detection and quantification of emphysema in patients with chronic obstructive pulmonary disease: a diagnostic accuracy study oleh Konstantin Willer, MSc, Alexander A Fingerle, MD, Wolfgang Noichl, MSc, Fabio De Marco, PhD, Manuela Frank, MSc, Theresa Urban, MSc, Rafael Schick, MSc, Alex Gustschin, MSc, Bernhard Gleich, PhD, Julia Herzen, ProfPhD, Thomas Koehler, PhD, Andre Yaroshenko, PhD, Thomas Pralow, DiplIng, Gregor S Zimmermann, MD, Bernhard Renger, DiplPhys, Andreas P Sauter, MD, Daniela Pfeiffer, MD, Marcus R Makowski, ProfMD, Ernst J Rummeny, ProfMD, Philippe A Grenier, ProfMD, Franz Pfeiffer, ProfPhD