High-Resolution CT in Patients with Chronic Airflow Obstruction: Correlation with Clinical Diagnosis and Pulmonary Function Test
| Autor: | Won Hyuck Suh, Jung Ah Choi, Jae Yoen Cho, Eun Young Kang, Ki Taek Hong, Yu Whan Oh, Ji Yong Rhee, Jin Hyung Kim |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
musculoskeletal diseases
medicine.medical_specialty Chronic bronchitis Bronchiectasis medicine.diagnostic_test business.industry Bronchiolitis obliterans respiratory system medicine.disease respiratory tract diseases Pulmonary function testing FEV1/FVC ratio Bronchoscopy medicine Radiology Medical diagnosis business Asthma |
| Zdroj: | Journal of the Korean Radiological Society. 42:939 |
| ISSN: | 0301-2867 |
| DOI: | 10.3348/jkrs.2000.42.6.939 |
| Popis: | Purpose: To determine the utility of HRCT in the diagnosis of chronic airflow obstruction and to correlate the morphologic abnormalities revealed by this modality with functional impairment in patients with chronic airflow obstruction. Materials and Methods: This study involved 80 patients with chronic airflow obstruction who underwent HRCT and a pulmonary function test. Final clinical diagnosis in these patients was determined by a chest physician on the basis of clinical features, bronchoscopy, pulmonary function test, and HRCT. In order to diagnose and determine the extent of areas of decreased attenuation revealed by HRCT (the CT score), the findings of HRCT were retrospectively reviewed by two radiologists, who reached a consensus. Clinical and HRCT diagnoses were then compared, and the rate of agreement between them was calculated. The relationship between the extent of areas of decreased attenuation revealed by HRCT and by FEV1/FVC was evaluated using Correl’s account and Student’s unpaired t-test. Results: The agreement rate between clinical and HRCT diagnoses was 77.5% (62/80). The rates for bronchiectasis (88.9%, 24/27), emphysema (93.9%, 31/33), and bronchiolitis obliterans (100%, 6/6) were considerably higher than those for chronic bronchitis and bronchial asthma. The correlation rate between CT score and FEV1/FVC was significant in bronchiectasis (p0.05). Conclusion: HRCT is valuable in the diagnosis and prediction of physiologic impairment in patients with bronchiectasis and bronchiolitis obliterans, but has limited value in those with emphysema, chronic bronchitis or asthma. |
| Databáze: | OpenAIRE |
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