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PET imaging reveals brain metabolism of orgasmic reactions
Dutch researchers may have done more to recruit radiologists than any public relations campaign ever could. They've used PET imaging to probe the brains of men and women before and during sexual orgasm.
Dutch researchers may have done more to recruit radiologists than any public relations campaign ever could. They've used PET imaging to probe the brains of men and women before and during sexual orgasm.
One finding showed that parts of women's brains, including those that govern emotional control, essentially shut down during orgasm. The same areas imaged during a faked orgasm were rife with FDG.
Areas of women's brains that control fear and anxiety, such as the amygdala, begin to deactivate during sexual activity, closing down at orgasm. In addition, women don't seem to rely as much as men on direct sensory input from the genitals. In men, the secondary somatosensory cortex, which rates the significance of physical sensations, showed greater FDG activity than in women.
Reliable data on men, however, were sparse because their orgasm needed to last a few minutes to compare scans before and during climax.
Dr. Gert Holstege, from the University of Groningen, reported the study at the European Society of Human Reproduction and Embryology meeting in July.
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.
