CHORUS
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Biello-Siegel criteria
- normal (0%)
- low prob (10%)
- small {<25% of a segment} Q defect(s)
- matched V/Q defects involving < 1/3 of lung
- nonsegmental defects (CMG, sm effusions)
- Q defect << CXR defect
- intermediate prob (20-33%)
- abnormality not within "low" or "high" category
- high prob (87%)
- two large {>75% of a segment} mismatches
- Q defect >> CXR and V
see: V/Q imaging
Charles E. Kahn, Jr., MD - 2 February 1995
Last updated: 1 October 2013
Copyright © 2013, Charles E. Kahn, Jr.
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