AJR. American journal of roentgenology
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The purpose of our study was to assess the relative accuracy of imaging findings related to peripheral recurrent nerve paralysis on axial CT studies of the neck. Also assessed were imaging findings of a central vagal neuropathy. ⋯ Three reliable imaging findings associated with vocal cord paralysis were identified on routine axial CT studies: ipsilateral pyriform sinus dilatation, medial positioning and thickening of the ipsilateral aryepiglottic fold, and ipsilateral laryngeal ventricle dilatation. Coronal reformatted images of the larynx may be helpful, but they are not necessary in 95% of patients. Ipsilateral pharyngeal constrictor muscle atrophy is a helpful imaging finding to localize a more central vagal neuropathy. Our findings can aid radiologists in identifying peripheral and central vagal neuropathy in patients who present for CT of the neck who have a normal voice and are without a history suggestive of a vagal problem.
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AJR Am J Roentgenol · Mar 2003
Whole-body three-dimensional multidetector CT of 13 Egyptian human mummies.
The purpose of this article is to assess the role of multidetector CT and three-dimensional (3D) reconstructions in noninvasive studies of Egyptian mummies. ⋯ The results obtained with this protocol provided important anthropologic and paleopathologic information that would have been impossible to obtain by other noninvasive techniques. Moreover, this method has great potential for studies of conservation, anthropology, and paleopathology of other Egyptian and ancient human remains. Multidisciplinary cooperation among anthropologists, paleopathologists, Egyptologists, and radiologists is essential.
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AJR Am J Roentgenol · Mar 2003
Pneumatosis intestinalis in patients with ischemia: correlation of CT findings with viability of the bowel.
The purpose of our study was to reassess the CT finding of pneumatosis in intestinal ischemia to determine whether it indicates transmural necrosis versus partial mural ischemia and also to determine whether other CT findings can be used to predict which patients with pneumatosis are likely to have viable bowel. ⋯ The CT finding of pneumatosis does not always indicate transmural infarction of the bowel in intestinal ischemia. Patients with associated portomesenteric venous gas are more likely to have transmural infarction than those with pneumatosis alone.
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AJR Am J Roentgenol · Mar 2003
Using slow-infusion MR arteriography and an implantable port system to assess drug distribution at hepatic arterial infusion chemotherapy.
The purpose of this study was to assess perfusion patterns seen on slow-infusion MR arteriography using the hepatic arterial infusion system compared with those seen on CT arteriography. ⋯ We believe that slow-infusion MR arteriography reflects the actual distribution of infused drugs more accurately than CT arteriography. When clinical complications occur during treatment, slow-infusion MR arteriography should be used to assess perfusion abnormalities.
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AJR Am J Roentgenol · Feb 2003
Experience at a single institution with endovascular treatment of mechanical complications caused by implanted central venous access devices in pediatric and adult patients.
Our objective was to describe the technical aspects and evaluate the feasibility, safety, and efficacy of endovascular management of mechanical complications related to implanted central venous devices. ⋯ The endovascular approach is highly feasible, safe, and effective for the management of mechanical complications of central venous devices. It is probably advisable to reserve endovascular repositioning for port catheters that are cumbersome to exchange and to replace simple catheters.