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Neurotransmitters show correlation with personality
With the help of PET, German researchers have established a correlation between healthy people's personalities and their brain chemistry.
Lead investigator Dr. Peter Bartenstein, a professor of nuclear medicine at Ludwig Maximilians-University in Munich, supervised the examination of 23 healthy men with no history of substance abuse with PET following administration of fluorine-18 fluoroethyl-diprenorphine, a radiolabeled tracer. It binds to endorphins occurring naturally in the brain's reward system. Researchers compared PET scans with results of a personality test and found that study subjects with a higher need for approval also showed the highest endorphin uptake. The results could lead to a better understanding and treatment of addictive behavior. They were published in the August issue of the Journal of Nuclear Medicine (2008;49 [8]:1257-1261).
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.
