Wagner and Jamieson reported a classification for evaluating pulmonary contusion in a trauma patient based on chest CT images. The authors are from the Uniformed Services University of the Health Sciences at Bethesda.
Patient selection: trauma
Exam: chest CT
Parameters:
(1) total air space
(2) volume of lung showing consolidation or laceration
percent of total air space =
= (volume of lung showing consolidation or laceration) / (total air space) * 100%
Percent of Total Air Space
Grade
Mechanical Ventilation
< 19%
Grade 1
none
19 to 28%
Grade 2
half to two-thirds
> 28%
Grade 3
all
Performance:
• In the study of Mommsen et al, the area under the ROC curve for ARDS was 0.63 and for mortality was 0.69.
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