Written by Dr. Marc Gruner
Propel Sports and Orthobiologics
Ultrasound sees tissue in motion
An MRI captures still images while you lie motionless in a scanner. Ultrasound, by contrast, is live. Your physician can watch a tendon glide, a nerve slide, or a muscle contract while you move the limb, which helps reveal problems that only show up with motion, such as a tendon snapping over bone or a nerve shifting out of its groove.
Ultrasound also lets us press directly on the spot that hurts and see what is underneath. Matching your pain to what is on the screen helps connect the image to your symptoms, which is often the hardest part of diagnosis.
Fine detail in tendons, muscles, and nerves
For structures close to the skin, modern ultrasound shows very fine detail. It is well suited to Achilles, patellar, hamstring, rotator cuff, and elbow tendon problems, as well as muscle strains, small partial tendon tears, and trapped nerves.
Comparing the injured side with the healthy side takes only a minute. It also avoids issues that can complicate MRI, such as metal implants, pacemakers, or claustrophobia, and it uses no radiation.
Answers at the first visit
At Propel, ultrasound is part of the exam itself. Dr. Gruner performs the scan during your appointment, so you usually leave with an explanation and a plan rather than waiting for another appointment and a separate report.
The same tool guides treatment. When an injection is needed, ultrasound lets the physician see the needle reach the exact target, whether that is a tendon, a bursa, or the space around a nerve.
When MRI is still the right test
Ultrasound cannot see through bone, so it has real limits. MRI is the better choice for stress fractures and bone bruises, cartilage injuries, and structures deep inside a joint, including the meniscus in the knee, the labrum in the hip or shoulder, and the ACL.
MRI is also useful when symptoms do not match the exam, when planning surgery, or when a problem could involve several tissues at once. Spine and nerve root problems generally call for MRI as well. When we think an MRI will change your care, we order it and review it with you.
How the two tests work together
The two tests are partners, not rivals. Many patients get what they need from exam and ultrasound alone. Others benefit from both, with ultrasound answering questions about movement and soft tissue and MRI covering bone and deeper structures.
The goal is the right test at the right time, based on what will change your treatment. That approach keeps care focused and gets you back to activity with fewer detours.
Frequently asked questions
- Is diagnostic ultrasound painful?
- No. A diagnostic ultrasound uses a handheld probe and gel on the skin. You may feel mild pressure when the physician presses over a sore area, which is often done on purpose to link your pain to what is seen on the screen.
- Can ultrasound detect a stress fracture?
- Ultrasound can sometimes show signs around the bone surface, but it is not reliable for ruling out a stress fracture. If a stress fracture is suspected, an X-ray and often an MRI are the better tests. Pinpoint bone pain that worsens with impact is a reason to be checked.
- Should an MRI be done before seeing a sports medicine physician?
- Usually not. An exam, often combined with an in-office ultrasound, answers many questions and helps decide whether an MRI is needed. If you already have an MRI, bring the images and the report to your visit so we can review them together.
What to expect at your visit
- 1.
We listen first
Your visit opens with a real conversation: how the problem started, what you have already tried, and the activity you want back.
- 2.
Exam and in-office ultrasound
A hands-on exam, then ultrasound at the exam table, often while you move, so your physician can see the tendon, joint, or nerve involved.
- 3.
A clear diagnosis and plan
You leave knowing what is wrong and what your options are, from strength-based rehab to procedures, and why we recommend each one.
- 4.
Treatment and follow-through
Most procedures happen here in the office. We coordinate with your physical therapist and check progress against the goals you set.