AJR. American journal of roentgenology
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The purpose of this report is to show the imaging characteristics of saphenous vein graft aneurysms and pseudoaneurysms. Conventional radiographic, CT, and coronary angiography images were reviewed for three patients ranging from 64 to 69 years old who had documented saphenous vein graft aneurysms or pseudoaneurysms. ⋯ Saphenous vein graft aneurysms and pseudoaneurysms appear as paracardiac, hilar, or mediastinal masses on chest radiographs. On CT, the lesions are enhancing tubular mixed-attenuation masses along the heart border. Coronary angiography confirms the graft dilatations. Knowing the imaging characteristics of these entities should lead to their diagnosis and prevent unnecessary complications.
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AJR Am J Roentgenol · Mar 1997
Comparative StudyDetection and segmental location of malignant hepatic tumors: comparison of ferumoxides-enhanced gradient-echo and T2-weighted spin-echo MR imaging.
The aim of our prospective study was to compare the values of ferumoxides-enhanced gradient-echo and T2-weighted spin-echo MR imaging for the detection and segmental location of malignant hepatic tumors. ⋯ In our study, ferumoxides-enhanced gradient-echo imaging was as accurate as T2-weighted spin-echo imaging for revealing malignant hepatic tumors and was superior for showing their segmental location.
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AJR Am J Roentgenol · Feb 1997
Comparative StudyHepatic cavernous hemangioma: appearance on T2-weighted fast spin-echo MR imaging with and without fat suppression.
The goals of our study were to define the morphologic appearance of cavernous hemangioma of the liver on T2-weighted fast spin-echo MR imaging and to determine if the use of fat suppression may quantitatively and qualitatively modify the MR imaging appearance of cavernous hemangioma. ⋯ Seventy-six percent of hepatic cavernous hemangiomas were homogeneous on T2-weighted fast spin-echo MR imaging, and 55% were isointense to CSF. However, only 34% of hepatic cavernous hemangiomas showed typical features. Although fat suppression significantly increased the C/N ratio of cavernous hemangiomas of the liver, fat suppression did not affect their morphologic appearance on T2-weighted fast spin-echo MR imaging.
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AJR Am J Roentgenol · Feb 1997
Esophageal foreign bodies: safety and efficacy of Foley catheter extraction of coins.
Continued controversy over the role of fluoroscopically guided Foley catheter removal of esophageal foreign bodies has limited the use of this technique despite its significant economic advantages. We reviewed our experience for the safety, efficacy, and applicability of this technique with pediatric patients who had swallowed coins. ⋯ Fluoroscopically guided Foley catheter extraction of retained coins in pediatric patients who lack evidence of significant esophageal edema causing tracheal compromise is a safe and efficacious technique. It should be considered the technique of choice for such extractions.