The size of one’s backside is normally a sensitive subject, but at the RSNA meeting the topic was the focus of a scientific study presented Sunday. The study found that patients with large behinds do not receive the biggest benefit from vaccines and other injections into the buttocks.
The size of one's backside is normally a sensitive subject, but at the RSNA meeting the topic was the focus of a scientific study presented Sunday. The study found that patients with large behinds do not receive the biggest benefit from vaccines and other injections into the buttocks.
The study, by Victoria Chan and colleagues at the Adelaide and Meath Hospital in Dublin, Ireland, involved 60 obese men and women scheduled for CT scans of the abdomen and pelvis and who were receiving intramuscular medication. The team found that 68% of intramuscular injections did not reach the muscles of buttock.
The overall success rate of the injections was 32%. The success rate among men was 56% compared to only 8% among women. Compared to men, women typically have a higher amount of fat in their buttocks.
Medications are designed so that the proper dosage is absorbed into the blood stream from the muscle. Because fat tissue has far fewer blood vessels than muscle, less medication is absorbed into the blood stream and delivered to its intended anatomic target.
"The amount of fat tissue overlying the muscles exceeds the length of the needles commonly used for these injections," Chan said.
As a solution, Chan proposed using longer needs to increase the success rate of intramuscular injections.
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.