Sometime in the past few million years, collapse at the top of the cave and surface erosion created the natural entrance of Carlsbad Cavern. This opened previously hidden underground cave passageways to the world above for the first time.
The Society of Diagnostic Medical Sonography (SDMS) defines sonography as diagnostic medical procedure that uses high frequency sound waves (ultrasound) to produce dynamic visual images of organs, tissues, or blood flow inside the body. This type of procedure is often referred to as a sonogram or ultrasound scan.
Computed tomography (CT) is a diagnostic medical procedure used in the diagnosing and monitoring of diseases. CT certification is a post-primary certification; however, it is not required by all states. Read on to learn more. Schools offering Cardiovascular Sonography degrees can also be found in these popular choices. Computed tomography (CT) is a type of radiology procedure that uses x-rays to produce cross sectional images of the human body.