AJR. American journal of roentgenology
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AJR Am J Roentgenol · Apr 2015
Location of core diagnostic information across various sequences in brain MRI and implications for efficiency of MRI scanner utilization.
Targeting redundancy within MRI can improve its cost-effective utilization. We sought to quantify potential redundancy in our brain MRI protocols. ⋯ High potential redundancy that can be targeted for more efficient scanner utilization exists in brain MRI protocols.
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AJR Am J Roentgenol · Apr 2015
Performance of CT examinations in children with suspected acute appendicitis in the community setting: a need for more education.
Despite a recent focus on the preferential use of ultrasound over CT for pediatric appendicitis, most children transferred from community hospitals still undergo diagnostic CT scans. The purpose of this study was to evaluate CT techniques performed for children with acute appendicitis at nonpediatric treatment centers. ⋯ CT parameters and radiation doses from single-phase examinations in children with appendicitis were similar at nonpediatric treatment centers and a tertiary care children's hospital. Future educational outreach should focus on optimizing other technical parameters.
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1. CT radiation dose optimization is one of the major concerns for the scientific community. 2. ⋯ Tube current is the most common parameter used to reduce radiation dose along with iterative reconstruction. 5. Tube potential (kV) is also used for dose optimization with iterative reconstruction in CT angiography protocols and small patients.
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AJR Am J Roentgenol · Apr 2015
Comparative StudyPET/MRI for the evaluation of patients with lymphoma: initial observations.
The objective of our study was to assess the role of recently introduced hybrid PET/MRI in the evaluation of lymphoma patients using PET/CT as a reference standard. ⋯ PET/MRI can be used to assess disease burden in lymphoma with sensitivity similar to PET/CT and can be a viable alternative for lymphoma staging and follow-up.
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AJR Am J Roentgenol · Apr 2015
Improvement in diagnostic accuracy of ultrasound of the pediatric appendix through the use of equivocal interpretive categories.
The purpose of this article is to evaluate the diagnostic performance of ultrasound of the pediatric appendix using standardized structured reports that incorporate equivocal interpretive categories. ⋯ Appendix ultrasound examinations interpreted according to a scheme that incorporates equivocal categories better convey diagnostic certainty and increase diagnostic accuracy compared with a binary interpretive scheme.