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KMID : 1103720110640020157
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Journal of the Korean Society of Radiology
2011 Volume.64 No. 2 p.157 ~ p.166
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Pneumomediastinum on Multidetector CT: The Radiologic Signs and Underlying Disorders
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Oh Soo-Jin
Kim Young-Tong
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Abstract
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We can see the typical signs of pneumomediastinum on chest radiography and we can also see them on the multiplanar reformatted (MPR) image of multidetector CT (MDCT). MDCT can help to understand the anatomical feature of these signs and differentiate pneumomediastinum from pneumothorax, pneumopericardium and the Mach band effect. MDCT shows the peribronchovascular air, which reveals the Macklin effect, and it can also evaluate the underlying disorders that cause pneumomediastinum. The purpose of this pictorial essay is to inform physicians about the mechanism and anatomical features of pneumomediastinum, and to help them understand the imaging findings and underlying disorders of pneumomediastinum as seen on MDCT.
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KEYWORD
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Mediastinal Emphysema, Tomography, X-Ray Computed
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