RSNA 2009

Dec 3, 2009

Visitors head in and out of the technical exhibits area, which expanded into Hall D this year.

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The study findings could lead to earlier interventions, according to a team from Johns Hopkins University in Baltimore.
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Cardiac MRI predicts risk of death in dilated cardiomyopathy
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A new strategy leverages the prognostic value of a late gadolinium enhancement and offers a quantitative versus qualitative approach.
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Breast calcifications affect MRI cancer treatment response prediction
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Calcifications found in HER2-positive cancers lower the performance of MRI to predict pathologic complete response.
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Experts propose generalist radiology AI framework
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A team of researchers outlined five key features of diagnostic generalist radiology AI (GRAI).
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HPI: U.S. pediatric radiology workforce in decline
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The number of pediatric radiologists in the U.S. is in decline, according to the Harvey L. Neiman Health Policy Institute (HPI).
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Low-dose CT ties emphysema to mortality in previous smokers
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Study findings highlight the clinical relevance of CT-diagnosed emphysema.
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Representative axial images of mild, moderate, and severe emphysema at baseline low-dose CT (LDCT). Participants were categorized as having no emphysema or mild, moderate, or severe emphysema. When present, emphysema was mild if no distinct regions of reduced attenuation were visible on the CT scan, but vascular splaying indicates parenchymal expansion, or if only occasional discrete low-attenuation regions were observed. Moderate emphysema was defined by the presence of identifiable low-attenuation regions affecting less than half of the lung parenchyma, whereas severe emphysema was defined by the presence of identifiable low-attenuation regions that involved more than half of the lung parenchyma. A scoring system from 0 to 3 was applied, corresponding to none, mild, moderate, and severe emphysema, respectively. Yellow circle indicates the extent of emphysema. (A) A 67-year-old man with mild emphysema at baseline LDCT in 2002. Baseline LDCT scan shows vascular splaying, suggesting parenchymal expansion due to emphysema and occasional discrete low-attenuation regions. The participant ultimately died of cardiovascular disease 15.4 years (184.2 months) later. (B) A 69-year-old man with moderate emphysema at baseline LDCT in 2007. The participant died of cardiovascular disease 1.8 years (21.9 months) later. Identifiable low-attenuation regions affected less than half of the lung parenchyma. (C) An 85-year-old woman with severe emphysema at baseline LDCT in 2006. After 5.5 years (65.5 months) of follow-up, the participant died due to chronic obstructive pulmonary disease–related causes. Identifiable low-attenuation regions involved more than half of the lung parenchyma.
AI boosts cardiac PET imaging
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AI-enhanced rubidium-82 myocardial blood flow imaging matched the quality of F-18 flurpiridaz PET perfusion imaging.
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Neuroradiology still lacks gender, racial/ethnic diversity
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Despite efforts, national data show that gender and racial/ethnic disparities persist in neuroradiology.
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Bayer pivots away from AI platform business
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Bayer is discontinuing its Calantic Digital Solutions platform as well as products and services from its Blackford Analysis subsidiary.
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PET use increasing in diagnosing cardiac device infections
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Integrating F-18 FDG-PET into standardized diagnostic protocols could enhance early detection of cardiac device-related infections.
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ISCT: CT is an ideal imaging modality for cardiometabolic screening
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Tracking biomarkers on CT could help clinicians better predict patient outcomes.
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ISCT: Radiologists can help reduce iodinated contrast media waste
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Radiologists can take proactive measures in reducing iodinated contrast media waste, according to an ISCT presentation.
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