AJR. American journal of roentgenology
-
AJR Am J Roentgenol · May 1996
Comparative StudyDetection of focal hepatic lesions with MR imaging: prospective comparison of T2-weighted fast spin-echo with and without fat suppression, T2-weighted breath-hold fast spin-echo, and gadolinium chelate-enhanced 3D gradient-recalled imaging.
The purpose of this study was to compare breath-hold three-dimensional (3D) rapid gradient-echo (GRE) MR imaging obtained before and after gadolinium chelate injection with T2-weighted fast spin-echo and T2-weighted breath-hold fast spin-echo (BHFSE) MR imaging in the detection of focal hepatic masses. ⋯ Gadolinium chelate-enhanced 3D rapid GRE imaging is superior to T2-weighted fast spin-echo images obtained with or without fat suppression for the detection of focal hepatic masses. T2-weighted BHFSE is similar to T2-weighted fast spin-echo images in detecting focal hepatic lesions.
-
AJR Am J Roentgenol · May 1996
Pneumothorax after small-bore catheter placement for malignant pleural effusions.
The objective of this study was to evaluate the incidence and significance of pneumothorax after small-bore chest tube placement for symptomatic malignant pleural effusions. ⋯ Pneumothorax should be recognized as a common finding after chest tube placement and immediate fluid drainage for malignant pleural effusions. We suggest that this finding is related to rapid removal of fluid from a relatively stiff, noncompliant lung. Patients whose lungs do not fully re-expand in several days will probably not benefit from sclerotherapy. Their tubes may be removed without risk of an enlarging tension pneumothorax.
-
This study was undertaken to determine the incidence of low attenuation values in intraperitoneal hemorrhage, which could be confused with ascites. ⋯ Low attenuation measurements for acute hemoperitoneum represented a common finding that was not attributable to technical factors or underlying anemia. Fluid with attenuation values less than 20 H in acute trauma should not be dismissed as ascitic fluid.
-
AJR Am J Roentgenol · May 1996
Acute rupture of the diaphragm due to blunt trauma: diagnostic sensitivity and specificity of CT.
The purpose of this study was to determine the diagnostic sensitivity and specificity of CT in detecting acute rupture of the diaphragm after blunt trauma. ⋯ CT is highly specific in diagnosing acute diaphragmatic rupture and detects approximately two thirds of acute diaphragmatic ruptures after blunt trauma.