AJR. American journal of roentgenology
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AJR Am J Roentgenol · Dec 2007
ReviewPostoperative imaging in cyanotic congenital heart diseases: part 1, Normal findings.
The objective of this article is to illustrate the most common surgical procedures performed in patients with cyanotic congenital heart diseases along with the respective postoperative MRI findings normally seen in clinical practice. ⋯ Radiologists need a solid knowledge of the surgical procedures used to treat patients with cyanotic congenital heart diseases to identify what constitutes normal postoperative findings on MR images and to play an ongoing role in the integral lifelong care of these patients.
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AJR Am J Roentgenol · Dec 2007
Comparative Study Controlled Clinical TrialOptimization of selection for nonoperative management of blunt splenic injury: comparison of MDCT grading systems.
The purpose of this study was to compare the usefulness of two CT grading systems of blunt splenic trauma in predicting which patients need surgery or angioembolization. ⋯ The proposed CT grading system is better than the AAST system for predicting which patients with blunt splenic trauma need arteriography or splenic intervention.
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AJR Am J Roentgenol · Dec 2007
Clinical TrialFrequency and severity of acute allergic-like reactions to gadolinium-containing i.v. contrast media in children and adults.
The purpose of our study was to determine the frequency and severity of acute allergic-like reactions to i.v.-administered gadolinium-containing contrast media in children and adults. ⋯ Adult and pediatric acute allergic-like reactions to i.v.-administered gadolinium-containing contrast media are rare. Most of these reactions are mild; however, moderate and severe reactions that require immediate management do occur.
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AJR Am J Roentgenol · Dec 2007
Percutaneous sonographically guided radiofrequency ablation of medium-sized fibroids: feasibility study.
The purpose of this study was to assess the feasibility and safety of percutaneous radiofrequency ablation under sonographic guidance as a unique procedure in the management of symptomatic uterine myomas. ⋯ Percutaneous sonographically guided radiofrequency ablation alone is a feasible and efficient procedure in the management of medium-sized uterine myomas.
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The purpose of this study was to perform imaging of cartilage at high resolution with a high signal-to-noise ratio (SNR) with a combination of iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) with parallel imaging at 3 T and spoiled gradient echo (SPGR) imaging. The findings with the combined technique were compared with those obtained with conventional fat-saturated SPGR imaging. ⋯ Compared with fat-saturated SPGR, IDEAL-SPGR imaging combined with parallel imaging at 3 T provides robust fat-water separation and significant improvement in cartilage SNR. Use of IDEAL-SPGR also led to dramatic improvement in cartilage-fluid contrast-to-noise ratio compared with fat-saturated SPGR imaging. Thus, use of IDEAL-SPGR may improve the accuracy of cartilage volume measurements and detection of cartilage surface defects. Excellent evaluation of the morphologic features of the knee cartilage with high-resolution, high-SNR images can be performed in 5 minutes.