Computed tomography (CT) scanning provides images of sections of ... In general, radiation exposure should be kept as low as reasonably achievable (the ALARA principle) without compromising medical ...

Why are there special quantities to quantify radiation in CT, such as Computed Tomography Air Kerma Index? Absorbed doses and organ doses cannot be measured directly within a patient, because it would ...

A new study finds that microplastics and nanoplastics accumulate at higher levels in the brain than in the liver and kidney.

All biological tissue is, to differing extents, permeable to electromagnetic (EM) radiation of different frequencies and intensities. This can also be considered as permeability of biological tissue ...