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Second-hand smoke falls to MR
The 30-year search for direct quantitative evidence linking second-hand smoke and lung disease ended at the 2007 RSNA meeting with a study that made the connection.
The 30-year search for direct quantitative evidence linking second-hand smoke and lung disease ended at the 2007 RSNA meeting with a study that made the connection. Collaborators at University of Virginia School of Medicine in Charlottesville and Children's Hospital of Philadelphia used inhaled hyperpolarized helium-3 and diffusion MRI to break through long-standing technical barriers. MR physicist Dr. Chengbo Wang, Ph.D., explained that high fMRI apparent diffusion coefficient values correlated with enlarged lung aveoli and damaged lungs, while low ADC values related to small aveoli and normal pulmonary function. Elevated ADC was found in 4% of subjects with infrequent exposure to second-hand smoke (A), 27% with high exposure (B), and 67% of current and former smokers. The findings could help build support for legislation that would tighten restrictions against public exposure to second-hand smoke, Wang said. (image provided by C. Wang).
Can Portable Dual-Energy X-Ray be a Viable Alternative to CT in the ICU?
September 13th 2024The use of a portable dual-energy X-ray detector in the ICU at one community hospital reportedly facilitated a 37.5 percent decrease in chest CT exams in comparison to the previous three months, according to research presented at the American Society of Emergency Radiology (ASER) meeting in Washington, D.C.
New Meta-Analysis Examines MRI Assessment for Treatment of Esophageal Cancer
September 12th 2024Diffusion-weighted MRI provided pooled sensitivity and specificity rates of 82 percent and 81 percent respectively for gauging patient response to concurrent chemoradiotherapy for esophageal cancer, according to new meta-analysis.
Study for Emerging PET/CT Agent Reveals ‘New Standard’ for Detecting Clear Cell Renal Cell Carcinoma
September 11th 2024Results from a multicenter phase 3 trial showed that the PET/CT imaging agent (89Zr)Zr-girentuximab had an 85.5 percent mean sensitivity rate for the diagnosis of clear cell renal cell carcinoma.
Can Radiomics and Autoencoders Enhance Real-Time Ultrasound Detection of Breast Cancer?
September 10th 2024Developed with breast ultrasound data from nearly 1,200 women, a model with mixed radiomic and autoencoder features had a 90 percent AUC for diagnosing breast cancer, according to new research.
