AJR. American journal of roentgenology
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The objective of our investigation was to evaluate safety during MR imaging (i.e., magnetic field interactions, heating, and artifacts) for metallic stents. ⋯ The findings of the safety tests indicated that the 10 different metallic stents would be safe for patients undergoing MR imaging procedures using MR systems with static magnetic fields of 1.5 T or less.
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AJR Am J Roentgenol · Sep 1999
Wandering wires: frequency of sternal wire abnormalities in patients with sternal dehiscence.
The purpose of this study is to assess the frequency of various sternal wire abnormalities on chest radiographs of patients with sternal dehiscence and to determine the role of radiography in detecting or confirming this complication. ⋯ Sternal wire abnormalities, most notably displacement, are present in most patients with sternal dehiscence; radiographic abnormalities precede the clinical diagnosis in most cases.
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The purpose of the study was to evaluate the ability of MR imaging to reveal RF interstitial thermotherapy in the porcine kidney, as a model for future human trials, and to provide guidance for RF probe insertion. ⋯ MR-guided RF thermal ablation in the porcine kidney was found to be feasible, but minor complications occurred. Induced thermal lesion size was best monitored using turbo STIR images. In the future, RF ablation may offer an alternative treatment option for renal cancer.
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AJR Am J Roentgenol · Aug 1999
Comparative StudyRadiologic placement of tunneled central catheters: rates of success and of immediate complications in a large series.
The objective was to examine the success and immediate complication rates in a large series of radiologically placed tunneled central venous catheters. ⋯ To our knowledge, this series is the largest for which the immediate complication and success rates for radiologically placed central venous catheters have been reported. Our results suggest that radiologic placement of tunneled central venous catheters is a safe and effective alternative to surgery.