Career comparison
Cardiovascular Technologist vs. Diagnostic Medical Sonographer
Side-by-side pay, training, growth and day-to-day duties to help you choose between two related careers.
Diagnostic medical sonographers earn more at the median ($96,590 vs. $74,310), while diagnostic medical sonographers usually get to work faster (18–24 months of training). Cardiovascular technologists run heart and blood vessel tests that help doctors diagnose disease. Diagnostic medical sonographers use ultrasound to create images of organs, blood vessels and babies for diagnosis.
Pay data: BLS OEWS, May 2025 · Outlook: BLS 2025–35 · Checked October 15, 2026
| Cardiovascular Technologist | Diagnostic Medical Sonographer | |
|---|---|---|
| Median pay | $74,310 ($35.73/hr) | $96,590 ($46.44/hr) |
| Pay range (10th–90th) | $39,000 – $121,350 | $67,820 – $129,370 |
| Job growth, 2025–35 | +3.7% (about as fast as average) | +13.9% (much faster than average) |
| Openings per year | 3,400 | 6,000 |
| Typical entry education | Associate's degree | Associate's degree |
| Training time | 2 years | 18–24 months |
| Key credential | RDCS | RDMS (ARDMS) |
| Work setting | Technologists work in hospitals, cardiology clinics and imaging centers, including cath labs.. | Sonographers work in hospitals, imaging centers, physician offices and cardiology and obstetric clinics. |
What each job does
Cardiovascular Technologist
- Perform EKGs and stress tests
- Do echocardiograms
- Scan blood vessels with ultrasound
- Assist in cardiac catheterization
- Monitor patients during procedures
Diagnostic Medical Sonographer
- Review orders and patient history before each exam
- Prepare and position patients and explain the procedure
- Scan with transducers and optimize the image settings
- Capture required images and measurements per protocol
- Recognize normal and abnormal findings
How they’re similar
Both careers involve helping others, hands-on work, indoor work, and high responsibility. Both are part of the healthcare field, so many skills transfer between them.
Which should you choose?
Choose cardiovascular technologist if…
- I’m interested in the heart
- I like technology
- I stay calm in emergencies
Choose diagnostic medical sonographer if…
- I find anatomy and physiology fascinating
- I have steady hands and good coordination
- I can focus for long stretches
Still torn? Take the Cardiovascular Technologist fit quiz and the Diagnostic Medical Sonographer fit quiz, or the full Career Match Quiz.
Quick comparisons
Which pays more, cardiovascular technologist or diagnostic medical sonographer?
Diagnostic Medical Sonographers earn more at the median: $96,590 versus $74,310 for cardiovascular technologists, based on BLS May 2025 data.
Which takes less time to train for?
Diagnostic Medical Sonographers typically train faster (18–24 months) than cardiovascular technologists (2 years).
Which career has better job growth?
BLS projects diagnostic medical sonographers to grow +13.9% from 2025–35, compared with +3.7% for cardiovascular technologists.