Bronchiectasis: Diagnostic Accuracy of Chest Computed Radiography.
10.3348/jkrs.1999.40.5.871
- Author:
Eung Yeop KIM
1
;
Boo Kyung HAN
;
Tae Sung KIM
;
Jung Hwa HWANG
;
Jung Hwan YOON
;
Chul H PAIK
;
Kyung Soo LEE
;
Jae Min CHO
;
Sang Hee CHOI
;
Hye Kyung YOON
Author Information
1. Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea.
- Publication Type:Original Article
- Keywords:
Bronchiectasis;
Radiography, computer-assisted
- MeSH:
Bronchiectasis*;
Humans;
Mass Screening;
Radiography*;
Reading;
Sensitivity and Specificity;
Thorax*
- From:Journal of the Korean Radiological Society
1999;40(5):871-877
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The aim of this study was to assess the diagnostic accuracy of chest comput-ed radiography for thedetection of bronchiectasis diagnosed by high-resolution CT. MATERIALS AND METHODS: Our study included 100consecutive patients with bronchiec-tasis and 20 normal subjects, all seen on high-resolution CT. Two independentobservers analyzed chest computed radiographs and recorded the presence and type of bronchiectasis, and the invo lved lobe. RESULTS: On high-resolution CT, bronchiectasis was seen in one lobe in 29 patients, two lobes in 29,three lobes in 16, four lobes in 14, five lobes in 10, and six lobes in t wo. The bronchiectasis was tubular in 55patients, mixed tubular and cystic in 29, and cystic in 16. For observer 1, the sensitivity, specificity, andaccuracy of chest com-puted radiography was 95%, 85%, and 93%, respective l y, while for observer 2, thecorresponding figures were 93%, 85%, and 92%. Sensitivity and specificity for observ-er 1 were 33% and 96% for theright upper lobe (46% and 95% for observer 2), 68% and 86% for the right middle lobe (76% and 86%), 70% and 78%for the right lower lobe (48% and 83%), 50% and 100% for the left upper lobe (50% and 97%), 63% and 90% for thelingular segment (49% and 93%), and 87% and 75% for the left lower lobe (75% and 90%), respective l y. Tubularbronchiectasis involving a single lobe was the most common source of false negative readings based on the findingsof chest com-puted radiography. CONCLUSION: Because chest computed radiography is not inferior to high-resolutionCT for the detection of bronchiectasis, the routine use of chest computed radiography in screening forbronchiectasis is feasible. Howeve r, due to its low sensitivity in detect-ing bronchiectasis in a specific lobe,preoperative high-resolution CT examination may be needed.
