Crura Sign: Differentiation between Traumatic Rupture of the Diaphragm and Nontraumatic Elevation on CT
Journal of the Korean Radiological Society
;
: 223-227, 1997.
Article
in Korean
| WPRIM
| ID: wpr-206578
ABSTRACT
PURPOSE:
To evalvate whether in patients with diffuse evaluation of a hemidiaphragm on chest radiographs, the apparence of the crura on CT might be helpful in differentiating between traumatic rupture of the diaphragm(TRD) and nontraumatic causes such as diaphragmatic palsy or diffuse diaphragmatic eventration. MATERIALS ANDMETHODS:
Among patients with diffuse elevations of a hemidiaphragm on chest radiograph, 27 who had patients undergone CT scans were retrospectively reviewed. Twelve patients had surgically proven TRD, and 15 had nontraumatic elevation of a hemidiaphragm such as diaphragmatic palsy or diffuse diaphragmatic eventration. Under the hypothesis that the affected crus is markedly thinner than the normal side in nontraumatic elevation but is normal in TRD ("crura sign"), we optically assessed without measurement the thickness of both crura.RESULTS:
In all patients with TRD, the thickness of the affected crus was similar to that of the contralateral side. In all patients with nontraumatic causes, however, the crus of the elevated hemidiaphragm was markedly thinner than of the normal side.CONCLUSION:
The "crura sign" may be useful additional CT finding of traumatic rupture the diaphragm.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Paralysis
/
Rupture
/
Diaphragm
/
Radiography, Thoracic
/
Tomography, X-Ray Computed
/
Retrospective Studies
/
Diaphragmatic Eventration
Type of study:
Observational study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Radiological Society
Year:
1997
Type:
Article
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