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KMID : 0385920060170060594
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Journal of the Korean Society of Emergency Medicine
2006 Volume.17 No. 6 p.594 ~ p.599
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Use of Color Doppler and Sensitivity of Different Sites of Examination in Diagnosing Pneumothorax
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Park Hyeon-Soo
Ahn Jung-Hwan
Cha Soo-Hyun
Min Young-Gi
Kim Gi-Woon
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Abstract
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Purpose: Thoracic ultrasonography (US) is an emerging tool for diagnosing pneumothorax (PTX), and the possible application of color Doppler to ultrasonography is another new development. The aim of this study is to analyze the possible contribution of color Doppler to thoracic US and to the estimation of pneumothorax volume.
Methods: Patients who were admitted to emergency department underwent chest X-ray and thoracic US with color Doppler. They were also evaluated by computed tomography, if needed, US was performed at four chest sites by emergency medicine faculty and resident, and concordance between color Doppler and lung sliding was analyzed. The number of sites with abnormal findings was correlated with the volume of PTX at each sites. Statistical analysis was performed with Pearson correlation.
Results: Sixty-three of 151 PTX cases were included in our study. The sensitivity of US was for PTX detection was 92.1% (58 of 63), and the concordance between color Doppler and lung sliding was 99.4%. The number of sites per patient with abnormal findings increased with the average volume of the PTX. The average PTX volume in the 5 cases with normal findings was 7.0%, which is a smallsized PTX.
Conclusion: The use of color Doppler is not more accurate than lung sliding, but it may helpful in diagnosing PTX. The volume of a PTX is proportional to a patient’s number of sites with abnormal US findings.
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KEYWORD
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Pneumothorax, Color Doppler, Ultrasonography
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