What Medical Sonographers and Cardiovascular Technologists and Technicians Do About this section
Diagnostic sonographers use high-frequency sound waves to produce images of the inside of the body.
Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists, also called diagnostic imaging workers, operate special imaging equipment to create images or conduct tests. The images and test results help physicians assess and diagnose medical conditions. Sonographers and technologists may work closely with physicians and surgeons before, during, and after procedures.
Duties
Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists, typically do the following:
Prepare patients for procedures by taking their medical history and answering any questions about the procedure
Prepare and maintain diagnostic imaging equipment
Operate equipment to obtain diagnostic images or to conduct tests
Review images or test results to check for quality and adequate coverage of the areas needed for diagnoses
Recognize the difference between normal and abnormal images, and identify other diagnostic information
Analyze diagnostic information to provide a summary of findings for physicians
Record findings and keep track of patients’ records
Diagnostic medical sonographers specialize in creating images of the body’s organs and tissues. The images are known as sonograms or ultrasounds. Sonograms are often the first imaging tests performed when disease is suspected.
Diagnostic sonography uses high-frequency sound waves to produce images of the inside of the body. The sonographer uses an instrument called an ultrasound transducer to scan parts of the patient’s body that are being examined. The transducer emits pulses of sound that bounce back, causing echoes. The echoes are then sent to an ultrasound machine, which processes them and displays them as images used by physicians for diagnosis.
The following are examples of types of diagnostic medical sonographers:
Abdominal sonographers specialize in imaging a patient’s abdominal cavity and nearby organs, such as the kidney, liver, gallbladder, pancreas, or spleen. Abdominal sonographers may assist with biopsies or other examinations requiring ultrasound guidance.
Breast sonographers specialize in imaging a patient’s breast tissues. Sonography can confirm the presence of cysts and tumors that may have been detected by the patient, the physician, or a mammogram. Breast sonographers work closely with physicians and assist with procedures that track tumors and help to provide information that will aid doctors in making decisions about the best treatment options for breast cancer patients.
Cardiac sonographers (echocardiographers) specialize in imaging a patient’s heart. They use ultrasound equipment to examine the heart’s chambers, valves, and vessels. The images obtained are known as echocardiograms. An echocardiogram may be performed either while the patient is resting or after the patient has been physically active. Cardiac sonographers also may take echocardiograms of fetal hearts so that physicians can diagnose cardiac conditions during pregnancy. Cardiac sonographers work closely with physicians or surgeons before, during, and after procedures.
Musculoskeletal sonographers specialize in imaging muscles, ligaments, tendons, and joints. These sonographers may assist with ultrasound guidance for injections, or during surgical procedures, that deliver medication or treatment directly to affected tissues.
Pediatric sonographers specialize in imaging children and infants. Many of the medical conditions they image are associated with premature births or birth defects. Pediatric sonographers may work closely with pediatricians and other caregivers.
Obstetric and gynecologic sonographers specialize in imaging the female reproductive system. Many pregnant women receive sonograms to track the baby’s growth and health. Obstetrical sonographers work closely with physicians in detecting congenital birth defects.
Vascular technologists (vascular sonographers) create images of blood vessels and collect data that help physicians diagnose disorders affecting blood flow. Vascular technologists often measure a patient’s blood pressure and the volume of blood in their arms, legs, fingers, and toes in order to evaluate blood flow and identify blocked arteries or blood clots in the body.
Cardiovascular technologists and technicians create images and conduct tests involving the heart and lungs. The following are examples of types of cardiovascular technologists and technicians:
Cardiovascular invasive specialists, also known as cardiac catheterization technologists or cardiovascular technologists, monitor patients’ heart rates and help physicians in diagnosing and treating problems with patients’ hearts. They assist with cardiac catheterization, which involves threading a catheter through a patient’s artery to the heart. They also prepare and monitor patients during open-heart surgery and during the insertion of pacemakers and stents. Technologists prepare patients for procedures by shaving and cleansing the area into which the catheter will be inserted and by administering topical anesthesia. During the procedure, they monitor the patient’s blood pressure and heart rate.
Cardiographic or electrocardiogram (EKG) technicians specialize in EKG testing. EKG machines monitor the heart’s performance through electrodes attached to a patient’s chest, arms, and legs. The tests can be done while the patient is at rest or while the patient is physically active. For a stress test, the patient walks on a treadmill and the technician gradually increases the speed to observe the effect on the heart of increased exertion.
Pulmonary function technologists, also known as cardiopulmonary technologists, monitor and test patients’ lungs and breathing. For example, they use spirometry to measure the amount of air that a patient can inhale or exhale. These technologists help physicians in diagnosing and treating problems of the pulmonary system.
Diagnostic imaging workers may perform procedures at patients' bedsides.
Cardiovascular technologists and technicians held about 58,200 jobs in 2020. The largest employers of cardiovascular technologists and technicians were as follows:
Hospitals; state, local, and private
78%
Offices of physicians
10
Outpatient care centers
3
Medical and diagnostic laboratories
1
Diagnostic medical sonographers held about 75,900 jobs in 2020. The largest employers of diagnostic medical sonographers were as follows:
Hospitals; state, local, and private
60%
Offices of physicians
20
Medical and diagnostic laboratories
11
Outpatient care centers
4
Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists, complete most of their work at diagnostic imaging machines in dimly lit rooms. They may perform procedures at patients’ bedsides. Diagnostic imaging workers may be on their feet for long periods and may need to lift or turn patients who are ill or disabled.
Work Schedules
Most diagnostic imaging workers work full time. Some may work evenings, weekends, or overnight because they work in facilities that are always open.
How to Become a Medical Sonographer or Cardiovascular Technologist and Technician About this section
Cardiovascular technologists monitor patients’ heart rates and perform and assist in the diagnosis and treatment of problems having to do with the patient’s heart.
Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists, need formal education, such as an associate’s degree or a postsecondary certificate. Many employers also require professional certification.
Education
Colleges and universities offer both associate’s and bachelor’s degree programs in sonography and in cardiovascular and vascular technology. Common fields of degree include healthcare and related subjects, biology, and science technologies. One-year certificate programs also are available from colleges and some hospitals.
Sonography, cardiovascular, and vascular education programs usually include courses in anatomy, medical terminology, and applied sciences. Most sonography programs are divided into the specialized fields listed earlier that correspond to the relevant certification exams, such as abdominal sonography or breast sonography. Cardiovascular and vascular programs include coursework in either invasive or noninvasive cardiovascular or vascular technology procedures. In addition to requiring classroom study, most programs include a clinical component in which students earn credit while working under a more experienced technologist in a hospital, a physician’s office, or an imaging laboratory.
High school students who are interested in diagnostic medical sonography, cardiovascular technology, or vascular technology should take courses in anatomy, physiology, physics, and math.
Diagnostic imaging workers can earn certification by graduating from an accredited program, although candidates also may qualify through alternative combinations of education and experience. All candidates must pass an exam. Most of the certifications are for specialties in diagnostic imaging; for example, a sonographer can earn a certification in abdominal sonography. Most diagnostic imaging workers have at least one certification, but many earn multiple certifications.
In addition, many employers prefer to hire candidates who have a basic life support (BLS) certification, which affirms that they are trained to provide CPR.
Few states require diagnostic medical sonographers to be licensed. Typically, professional certification is required for licensure; other requirements vary by state. Contact state medical boards for more information.
Important Qualities
Detail oriented. Diagnostic imaging workers must follow precise instructions to obtain the images needed to diagnose and treat patients. They must also pay attention to the screen while scanning a patient’s body, because the cues that contrast healthy areas with unhealthy ones may be subtle.
Hand–eye coordination. To get quality images, diagnostic imaging workers must accurately move equipment on the patient’s body in response to what they see on the screen.
Interpersonal skills. Diagnostic imaging workers must work closely with patients. Sometimes patients are in extreme pain or mental stress, and these workers must get cooperation from the patients in order to create usable images. Diagnostic imaging workers must also communicate clearly when discussing images with physicians and other members of the healthcare team.
Physical stamina. Diagnostic imaging workers are on their feet for long periods and must be able to lift and move patients who need assistance.
Technical skills. Diagnostic imaging workers must understand how to operate complex machinery and computerized instruments.
Medical Sonographers and Cardiovascular Technologists and Technicians
Median annual wages, May 2021
Diagnostic medical sonographers
$77,740
Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists
$75,380
Cardiovascular technologists and technicians
$60,570
Health technologists and technicians
$46,910
Total, all occupations
$45,760
Note: All Occupations includes all occupations in the U.S. Economy. Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics
The median annual wage for cardiovascular technologists and technicians was $60,570 in May 2021.
The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $29,910, and the highest 10 percent earned more than $98,070.
The median annual wage for diagnostic medical sonographers was $77,740 in May 2021.
The lowest 10 percent earned less than $59,640, and the highest 10 percent earned more than $101,650.
In May 2021, the median annual wages for cardiovascular technologists and technicians in the top industries in which they worked were as follows:
Outpatient care centers
$78,590
Medical and diagnostic laboratories
74,660
Offices of physicians
62,220
Hospitals; state, local, and private
60,230
In May 2021, the median annual wages for diagnostic medical sonographers in the top industries in which they worked were as follows:
Outpatient care centers
$100,990
Hospitals; state, local, and private
77,770
Offices of physicians
77,760
Medical and diagnostic laboratories
76,430
Most diagnostic imaging workers work full time. Some may work evenings, weekends, or overnight because they work in facilities that are always open.
Medical Sonographers and Cardiovascular Technologists and Technicians
Percent change in employment, projected 2020-30
Diagnostic medical sonographers
19%
Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists
14%
Health technologists and technicians
9%
Cardiovascular technologists and technicians
8%
Total, all occupations
8%
Note: All Occupations includes all occupations in the U.S. Economy. Source: U.S. Bureau of Labor Statistics, Employment Projections program
Overall employment of medical sonographers and cardiovascular technologists and technicians is projected to grow 14 percent from 2020 to 2030, faster than the average for all occupations.
About 12,000 openings for medical sonographers and cardiovascular technologists and technicians are projected each year, on average, over the decade.
Many of those openings are expected to result from the need to replace workers who transfer to different occupations or exit the labor force, such as to retire.
Employment
As the large baby-boom population ages, the need to diagnose medical conditions—such as blood clots and heart disease—will likely increase. Imaging technology is a tool used in making these diagnoses. Moreover, diagnostic medical sonographers, cardiovascular technologists and technicians, and vascular technologists will continue to be needed in healthcare settings to provide an alternative to imaging techniques that involve radiation.
Employment projections data for medical sonographers and cardiovascular technologists and technicians, 2020-30
Occupational Title
SOC Code
Employment, 2020
Projected Employment, 2030
Change, 2020-30
Employment by Industry
Percent
Numeric
SOURCE: U.S. Bureau of Labor Statistics, Employment Projections program
Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists
For a current list of accredited education programs in diagnostic medical sonography and cardiovascular technology, including vascular technology, visit