@article{VoigtThieleWetzkeetal.2021,
  author    = {Voigt, Gesche M. and Thiele, Dominik and Wetzke, Martin and Weidemann, J{\"u}rgen and Parpatt, Patricia-Maria and Welte, Tobias and Seidenberg, J{\"u}rgen and Vogelberg, Christian and Koster, Holger and Rohde, Gernot G. U. and H{\"a}rtel, Christoph and Hansen, Gesine and Kopp, Matthias V.},
  title     = {Interobserver agreement in interpretation of chest radiographs for pediatric community acquired pneumonia: Findings of the pedCAPNETZ-cohort},
  series = {Pediatric Pulmonology},
  volume    = {56},
  journal   = {Pediatric Pulmonology},
  number    = {8},
  doi       = {10.1002/ppul.25528},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-244705},
  pages     = {2676 -- 2685},
  year      = {2021},
  abstract  = {Although chest radiograph (CXR) is commonly used in diagnosing pediatric community acquired pneumonia (pCAP), limited data on interobserver agreement among radiologists exist. PedCAPNETZ is a prospective, observational, and multicenter study on pCAP. N = 233 CXR from patients with clinical diagnosis of pCAP were retrieved and n = 12 CXR without pathological findings were added. All CXR were interpreted by a radiologist at the site of recruitment and by two external, blinded pediatric radiologists. To evaluate interobserver agreement, the reporting of presence or absence of pCAP in CXR was analyzed, and prevalence and bias-adjusted kappa (PABAK) statistical testing was applied. Overall, n = 190 (82\%) of CXR were confirmed as pCAP by two external pediatric radiologists. Compared with patients with pCAP negative CXR, patients with CXR-confirmed pCAP displayed higher C-reactive protein levels and a longer duration of symptoms before enrollment (p < .007). Further parameters, that is, age, respiratory rate, and oxygen saturation showed no significant difference. The interobserver agreement between the onsite radiologists and each of the two independent pediatric radiologists for the presence of pCAP was poor to fair (69\%; PABAK = 0.39\% and 76\%; PABAK = 0.53, respectively). The concordance between the external radiologists was fair (81\%; PABAK = 0.62). With regard to typical CXR findings for pCAP, chance corrected interrater agreement was highest for pleural effusions, infiltrates, and consolidations and lowest for interstitial patterns and peribronchial thickening. Our data show a poor interobserver agreement in the CXR-based diagnosis of pCAP and emphasized the need for harmonized interpretation standards.},
  language  = {en}
}
@article{KaireitSorrentinoRenneetal.2017,
  author    = {Kaireit, Till F. and Sorrentino, Sajoscha A. and Renne, Julius and Schoenfeld, Christian and Voskrebenzev, Andreas and Gutberlet, Marcel and Schulz, Angela and Jakob, Peter M. and Hansen, Gesine and Wacker, Frank and Welte, Tobias and T{\"u}mmler, Burkhard and Vogel-Claussen, Jens},
  title     = {Functional lung MRI for regional monitoring of patients with cystic fibrosis},
  series = {PLoS ONE},
  volume    = {12},
  journal   = {PLoS ONE},
  number    = {12},
  doi       = {10.1371/journal.pone.0187483},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-172457},
  year      = {2017},
  abstract  = {Purpose To test quantitative functional lung MRI techniques in young adults with cystic fibrosis (CF) compared to healthy volunteers and to monitor immediate treatment effects of a single inhalation of hypertonic saline in comparison to clinical routine pulmonary function tests. Materials and methods Sixteen clinically stable CF patients and 12 healthy volunteers prospectively underwent two functional lung MRI scans and pulmonary function tests before and 2h after a single treatment of inhaled hypertonic saline or without any treatment. MRI-derived oxygen enhanced T1 relaxation measurements, fractional ventilation, first-pass perfusion parameters and a morpho-functional CF-MRI score were acquired. Results Compared to healthy controls functional lung MRI detected and quantified significantly increased ventilation heterogeneity in CF patients. Regional functional lung MRI measures of ventilation and perfusion as well as the CF-MRI score and pulmonary function tests could not detect a significant treatment effect two hours after a single treatment with hypertonic saline in young adults with CF (p>0.05). Conclusion This study shows the feasibility of functional lung MRI as a non-invasive, radiation-free tool for monitoring patients with CF.},
  language  = {en}
}