There are several avenues for entry into the field of diagnostic medical sonography. Sonographers may train in hospitals, vocational-technical institutions, colleges or universities, or the Armed Forces. Some training programs prefer applicants with experience in other healthcare professions or high school graduates with courses in mathematics, health, and science.
Colleges and universities offer formal training in both 2-year and 4-year programs, resulting in either an associate or a bachelor's degree. Two-year programs are the most prevalent. Coursework includes classes in anatomy, physiology, instrumentation, basic physics, patient care, and medical ethics. In 2008, the Commission on Accreditation of Allied Health Education Programs (CAAHEP) accredited over 150 training programs. Accredited programs are offered by colleges and universities. Some hospital programs are accredited as well.
A few 1-year programs that typically result in a vocational certificate also are accepted as proper education by employers. These programs are useful usually only for workers already employed in a healthcare occupation who seek to increase their marketability by training in sonography.
source: http://www.bls.gov/oco/ocos273.htm
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