AJR. American journal of roentgenology
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AJR Am J Roentgenol · Mar 2012
Reducing the rate of repeat imaging: import of outside images to PACS.
Repeat imaging at the transfer of care between institutions is a potential source of overutilization. The purpose of this study was to assess whether importing images obtained at one institution to the PACS at another institution reduces the number of repeat imaging examinations performed, sparing patients unnecessary cost and radiation. ⋯ Importing outside images to PACS reduces the rate of repeat imaging.
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AJR Am J Roentgenol · Mar 2012
Comparative StudyDiffusion-weighted imaging of breast masses: comparison of diagnostic performance using various apparent diffusion coefficient parameters.
The purpose of our study was to assess the utility of the minimum apparent diffusion coefficient (ADC), average ADC, maximum ADC, and ADC difference value and to find optimum ADC parameters for differentiation between benign and malignant lesions in breast diffusion-weighted imaging (DWI). ⋯ Minimum ADC may be an optimal DWI single parameter for differentiation between malignant and benign lesions of breast masses. Furthermore, the combination of the minimum ADC and ADC difference value significantly elevated diagnostic performance of breast DWI in comparison with average ADC.
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AJR Am J Roentgenol · Mar 2012
Mammography screening: a new estimate of number needed to screen to prevent one breast cancer death.
The purpose of our study was to estimate the number of women needed to screen (NNS) to prevent one breast cancer death and the number needed to screen per life-year gained (NNS/LYG) with annual or biennial screening mammography and to compare NNS to the number needed to invite (NNI) to a screening trial to prevent one breast cancer death. ⋯ The NNS based on CISNET modeling results is much smaller than the NNI based on RCT data. Eighty-four women need to be screened annually between 40 and 84 years to save one life from breast cancer and 5.3 need to be screened annually to gain 1 life-year from breast cancer.
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AJR Am J Roentgenol · Mar 2012
Technique for CT fluoroscopy-guided cervical interlaminar steroid injections.
We describe the use of CT fluoroscopy as a guidance tool for performing interlaminar epidural steroid injections in the cervical spine. ⋯ CT fluoroscopy is an alternative method to perform cervical interlaminar steroid injections that allows precise needle placement in the epidural space.
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AJR Am J Roentgenol · Mar 2012
MRI features of ovarian fibroma and fibrothecoma with histopathologic correlation.
The purpose of this article is to evaluate MRI features of ovarian fibroma and fibrothecoma with histopathologic correlation. ⋯ MRI features of ovarian fibromas and fibrothecomas depend on size, with capsule and degenerative changes common with fibromas and fibrothecomas larger than 6 cm. Fibromas and fibrothecomas enhance less than myometrium and fibroids do, and less than 75% maximum percentage enhancement can help in differentiating fibromas and fibrothecomas from fibroids.