AJR. American journal of roentgenology
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AJR Am J Roentgenol · Jul 2011
High-resolution MR neurography: evaluation before repeat tarsal tunnel surgery.
The purpose of this study was to retrospectively determine the accuracy of high-resolution MR neurography (MRN) in presurgical evaluation before repeat tarsal tunnel surgery. ⋯ MRN yields accurate morphologic information about the location and extent of nerve injury after failed tarsal tunnel release and facilitates preoperative diagnosis.
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AJR Am J Roentgenol · Jul 2011
Evolution of hypointense hepatocellular nodules observed only in the hepatobiliary phase of gadoxetate disodium-enhanced MRI.
We sought to determine whether hypointense hepatocellular nodules observed in the hepatobiliary phase of MRI enhanced with gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (gadoxetate disodium) progress to hypervascular hepatocellular carcinoma. ⋯ Hypointense nodules with a maximum diameter of at least 15 mm often become hypervascular. Therefore, patients with hypointense nodules characterized by a maximum diameter of 15 mm or greater should be observed carefully because of the high incidence of vascularization.
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AJR Am J Roentgenol · Jul 2011
The prevalence of uncommon fractures on skeletal surveys performed to evaluate for suspected abuse in 930 children: should practice guidelines change?
The objective of our study was to evaluate the prevalence and site of fractures detected on skeletal surveys performed for suspected child abuse at a tertiary children's hospital and to determine whether any survey images may be eliminated without affecting clinical care or the ability to make a diagnosis. ⋯ In skeletal surveys performed for suspected child abuse, fractures limited to sites other than the long bones, ribs, skull, and clavicles are rare. The additional radiation exposure and cost of obtaining radiographs of the spine, pelvis, hands, and feet may outweigh their potential benefit. Given the rarity of fractures of the spine, pelvis, hands, and feet, consideration may be given to eliminating those views from routine skeletal surveys performed to evaluate for suspected child abuse.
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AJR Am J Roentgenol · Jul 2011
Adrenal masses in patients with cancer: PET/CT characterization with combined CT histogram and standardized uptake value PET analysis.
Our purpose was to determine the diagnostic performance of 18F-FDG PET/CT for characterizing adrenal masses in patients with cancer, combining standardized uptake value (SUV) and CT histogram analysis. ⋯ The combination of SUV and CT histogram analysis allowed us to significantly improve the PET/CT diagnostic accuracy for characterizing adrenal lesions, leading to a significant reduction in the number of false-positive cases.
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AJR Am J Roentgenol · Jul 2011
Characteristics of falls in a large academic radiology department: occurrence, associated factors, outcomes, and quality improvement strategies.
The objective of our study was to describe the characteristics of falls in a radiology department. ⋯ Falls were uncommon in the radiology department studied; however, they can result in significant morbidity and mortality.