2026-04-19T19:16:02Zhttps://recercat.cat/oai/request

oai:recercat.cat:11351/86152025-10-24T10:35:15Zcom_2072_378070com_2072_378040col_2072_378092

00925njm 22002777a 4500 dc Vazquez Guillamet, Rodrigo author Vazquez Guillamet, M Cristina author Rjob, Ashraf author Bierhals, Andrew author Bello Rodríguez, Irene author Jauregui Abularach, Alberto author 2022-12-09T09:00:42Z 2022-12-09T09:00:42Z 2022-04 Lung transplantation; Chest X-ray; Precision Trasplante de pulmón; Radiografía de tórax; Precisión Trasplantament de pulmó; Radiografia de tòrax; Precisió Background: Errors in measuring chest X-ray (CXR) lung heights could contribute to the occurrence of size-mismatched lung transplant procedures. Methods: We first used Bland-Altman analysis for repeated measures to evaluate contributors to measurement error of chest X-ray lung height. We then applied error propagation theory to assess the impact of measurement error on size matching for lung transplantation. Results: A total 387 chest X-rays from twenty-five donors and twenty-five recipients were measured by two raters. Individual standard deviation for lung height differences were independent of age, sex, donor vs. recipient, diagnostic group and race/ethnicity and all were pooled for analysis. Bias between raters was 0.27 cm (±0.03) and 0.22 cm (±0.06) for the right and left lung respectively. Within subject variability was the biggest contributor to error in measurement, 2.76 cm (±0.06) and 2.78 cm (±0.2) for the right and left lung height. A height difference of 4.4 cm or more (95% CI: ±4.2, ±4.6 cm) between the donor and the recipient right lung height has to be accepted to ensure matching for at least 95% of patients with the same true lung height. This difference decreases to ±1.1 cm (95% CI: ±0.9, ±1.3 cm) when the average from all available chest X-rays is used. The probability of matching a donor and a recipient decreases with increasing true lung height difference. Conclusions: Individual chest X-ray lung heights are imprecise for the purpose of size matching in lung transplantation. Averaging chest X-rays lung heights reduced uncertainty. This research was supported by the Washington University Institute of Clinical and Translational Sciences Grant UL1TR002345 from the National Center for Advancing Translational Sciences (NCATS) of the National Institutes of Health (NIH). The content is solely the responsibility of the authors and does not necessarily represent the official view of the NIH. http://hdl.handle.net/11351/8615 Pulmons - Trasplantació Tòrax - Radiografia Pulmons - Pes ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT::Surgical Procedures, Operative::Thoracic Surgical Procedures::Pulmonary Surgical Procedures::Lung Transplantation ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT::Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Imaging::Radiography::Radiography, Thoracic ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT::Investigative Techniques::Anthropometry::Body Weights and Measures::Organ Size TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS::intervenciones quirúrgicas::procedimientos quirúrgicos torácicos::procedimientos quirúrgicos pulmonares::trasplante de pulmón TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS::diagnóstico::técnicas y procedimientos diagnósticos::diagnóstico por imagen::radiografía::radiografía torácica TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS::técnicas de investigación::antropometría::pesos y medidas corporales::tamaño de los órganos Uncertainty analysis of chest X-ray lung height measurements and size matching for lung transplantation