1. Visual diagnosis of pectus excavatum: An inter-observer and intra-observer agreement analysis
- Author
-
Tessa C. M. Geraedts, Yvonne L. J. Vissers, Pieter Jan Van Huijstee, Ted W.O. Elenbaas, Jean H.T. Daemen, Hans Van Veer, Erik R. de Loos, Karel W.E. Hulsewé, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, and CTC
- Subjects
medicine.medical_specialty ,Adolescent ,03 medical and health sciences ,Imaging, Three-Dimensional ,0302 clinical medicine ,Cohen's kappa ,Pectus excavatum ,Interquartile range ,030225 pediatrics ,Diagnosis ,medicine ,Deformity ,Humans ,Visual assessment ,Observer Variation ,NUSS PROCEDURE ,REPAIR ,business.industry ,Visual examination ,Agreement analysis ,General Medicine ,medicine.disease ,Intra observer ,Inter-observer agreement ,Funnel Chest ,030220 oncology & carcinogenesis ,Pediatrics, Perinatology and Child Health ,Intra-observer agreement ,Surgery ,Radiology ,medicine.symptom ,Tomography, X-Ray Computed ,business ,Kappa ,CT - Abstract
Background/purpose: Among patients suspected of pectus excavatum, visual examination is a key aspect of diagnosis and, moreover, guides work-up and treatment strategy. This study evaluated the inter observer and intra-observer agreement of visual examination and diagnosis of pectus excavatum among experts. Methods: Three-dimensional surface images of consecutive patients suspected of pectus excavatum were reviewed in a multi-center setting. Interactive three-dimensional images were evaluated for the presence of pectus excavatum, asymmetry, flaring, depth of deformity, cranial onset, overall severity and morphological subtype through a questionnaire. Observers were blinded to all clinical patient information, completing the questionnaire twice per subject. Agreement was analyzed by kappa statistics. Results: Fifty-eight subjects with a median age of 15.5 years (interquartile range: 14.1-18.2) were evaluated by 5 (cardio)thoracic surgeons. Pectus excavatum was visually diagnosed in 55% to 95% of cases by different surgeons, revealing considerable inter-observer differences (kappa: 0.50; 95%-confidence interval [CI]: 0.41-0.58). All other items demonstrated inter-observer kappa's of 0.25-0.37. Intra-observer analyses evaluating the presence of pectus excavatum demonstrated a kappa of 0.81 (95%-CI: 0.72-0.91), while all other items showed intra-observer kappa's of 0.36-0.68. Conclusions: Visual examination and diagnosis of pectus excavatum yields considerable inter-observer and intra-observer disagreements. As this variation in judgement could impact work-up and treatment strategy, objective standardization is urged. Levels of evidence: III. (c) 2021 Elsevier Inc. All rights reserved.
- Published
- 2022