AJR. American journal of roentgenology
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AJR Am J Roentgenol · Apr 2011
Multicenter Study Clinical TrialInterpretation of positron emission mammography and MRI by experienced breast imaging radiologists: performance and observer reproducibility.
In preparation for a multicenter trial of positron emission mammography (PEM) and MRI in women with newly diagnosed cancer, the two purposes of this study were to validate training of breast imagers in standardized interpretation of PEM and to validate performance of the same specialists interpreting MRI. ⋯ With minimal training, experienced breast imagers showed high performance in interpreting PEM images. Performance in MRI interpretation by the same observers validated expected clinical practice.
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AJR Am J Roentgenol · Apr 2011
Comparative StudyRadiation-related cancer risks from CT colonography screening: a risk-benefit analysis.
The purpose of this study was to estimate the ratio of cancers prevented to induced (benefit-risk ratio) for CT colonography (CTC) screening every 5 years from the age of 50 to 80 years. ⋯ Concerns have been raised about recommending CTC as a routine screening tool because of potential harms including the radiation risks. Based on these models, the benefits from CTC screening every 5 years from the age of 50 to 80 years clearly outweigh the radiation risks.
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AJR Am J Roentgenol · Apr 2011
Comparative StudyA simulation model of clinical and economic outcomes of cardiac CT triage of patients with acute chest pain in the emergency department.
Uncertainty exists as to whether coronary CT angiography (CTA) compared with standard of care (SOC) is more effective and efficient in the triage of low-risk emergency department (ED) patients with acute chest pain. Our objective was to construct a simulation model to estimate clinical and economic outcomes. ⋯ Our model suggests that coronary CTA-based triage of low-risk patients with acute chest pain in the ED might reduce invasive catheterizations, could improve survival, and may save money.
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Dysplasia at the bottom of a sulcus is a subtle but distinct malformation of cortical development relevant to epilepsy. The purpose of this study was to review the imaging features important to the clinical diagnosis of this lesion. ⋯ Bottom-of-sulcus dysplasia is a distinctive malformation of cortical development that can be diagnosed on the basis of imaging characteristics. Reliable identification of this type of malformation of cortical development is difficult but clinically important because the lesion appears to be highly epileptogenic and because the prognosis for seizure control is excellent after focal resection.
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AJR Am J Roentgenol · Apr 2011
MDCT features of angiotensin-converting enzyme inhibitor-induced visceral angioedema.
Our objectives are to describe the CT features of angiotensin-converting enzyme (ACE) inhibitor-induced visceral angioedema and to review other conditions that may have similar findings. ⋯ CT findings in a patient taking an angiotensin-converting enzyme (ACE) inhibitor help in the diagnosis and subsequent treatment of ACE inhibitor-induced visceral angioedema.