Imaging Science. Background. Imaging Science is dedicated to exploring the following imaging modalities: MRI (Magnetic Resonance Imaging), CT (Computed Tomography), Ultrasound, PET (Positron Emission Tomography), PET-CT, and X-ray.art of the history of Imaging Science includes the arrival of the 8-Tesla magnet during the last week of December 1997, which achieved the 8-Tesla field in February 10, 1998.
Coated or white tongue. Introduction. A coated or white tongue occurs when the surface is colonised by bacteria or fungi, and dead cells become trapped between the small nodules on the tongue. A coated tongue isn't a disease and isn't usually a sign of anything serious. It's usually only temporary.
A Dr. Jonathan B. Levine, DMD, Dentist, answered. A normal tongue is pink, textured, and slightly moist. When you stick out your tongue, if you see a white coating -- that is dead bacteria that create an oxygen free zone underneath where the bad breath causing bacteria can thrive. Under this white coating, within the deep papillae of the tongue, the volatile sulfa compounds, which create the offensive odor, are produced.