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PET lights up smokers' motives
While tobacco addiction exhibits a similar biological mechanism among all smokers, Duke University researchers using FDG-PET have found for the first time that those mechanisms can vary among individuals depending on the reasons they ascribe to their craving.
While tobacco addiction exhibits a similar biological mechanism among all smokers, Duke University researchers using FDG-PET have found for the first time that those mechanisms can vary among individuals depending on the reasons they ascribe to their craving.
Jed E. Rose, Ph.D., and colleagues from the departments of psychiatry and radiology found that changes in the thalamus (shown in blue) were most dramatic among smokers wishing to calm down when under stress. Changes in the striatum (red) were most notable in smokers wanting to satisfy craving and experience pleasurable relaxation. Changes in the anterior cingulate cortex (green) were noticeably activated in people who smoked to manage their weight.
The study, funded by Phillip Morris USA and published online in March in Neuropsychopharmacology, may yield better methods for individualized smoking cessation programs, according to the study. (Image provided by Duke University)
MRI-Based AI Radiomics Model Offers 'Robust' Prediction of Perineural Invasion in Prostate Cancer
July 26th 2024A model that combines MRI-based deep learning radiomics and clinical factors demonstrated an 84.8 percent ROC AUC and a 92.6 percent precision-recall AUC for predicting perineural invasion in prostate cancer cases.
Breast MRI Study Examines Common Factors with False Negatives and False Positives
July 24th 2024The absence of ipsilateral breast hypervascularity is three times more likely to be associated with false-negative findings on breast MRI and non-mass enhancement lesions have a 4.5-fold likelihood of being linked to false-positive results, according to new research.
Can Polyenergetic Reconstruction Help Resolve Streak Artifacts in Photon Counting CT?
July 22nd 2024New research looking at photon-counting computed tomography (PCCT) demonstrated significantly reduced variation and tracheal air density attenuation with polyenergetic reconstruction in contrast to monoenergetic reconstruction on chest CT.
