A diagnostic medical sonographer is certified by The American Registry for Diagnostic Medical Sonography and is known as a Registered Diagnostic Medical Sonographer or RDMS. This registry offers credentials in specialty areas like the breast, abdomen and nervous system.iagnostic Medical Sonographers Overview. The outlook for job opportunities in the field of medical sonography is good for the future and employment will grow as medical sonography will serve as a replacement or alternative to radiology procedures.
capable of being transported or conveyed: a portable stage. 2. easily carried or conveyed by hand: a portable typewriter. 3. Computers. (of data sets, software, etc.) capable of being used on different computer systems.
A Ransomes portable engine No. 20539 at the Bromyard Show 2008. A portable engine is a small steam engine, mounted on wheels or skids, which is used for driving machinery using a belt from its flywheel. It is not self-propelled and is towed to the work site by horses or bullocks, or even a traction engine. Portable engines were used mainly for driving agricultural machinery, such as threshing machines.