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This document summarizes a study that evaluated the validity of posterior-anterior (PA) chest x-rays for diagnosing emphysema. The study analyzed 192 subjects who received both chest x-rays and spirometry tests. Chest x-rays were diagnosed as emphysema or non-emphysema based on criteria like hyperinflation and flattened diaphragm. Spirometry diagnosed obstruction based on airflow measures. The chest x-ray diagnosed emphysema in 126 subjects and non-emphysema in 66. Chest x-ray results matched spirometry in

Author

eka

Language

EN