기흉의 초음파 진단에서 칼라 도플러의 이용과 검사 부위에 따른 민감도 = Use of Color Doppler and Sensitivity of Different Sites of Examination

다국어 초록 (Multilingual Abstract)

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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