If you have persistent pain or an injury that isn’t improving, you may be wondering whether you need an ultrasound scan or an MRI.

It’s a common question. You may simply want to understand what is causing your symptoms and whether there is an injury that needs specific treatment.

The important thing to know is that ultrasound and MRI are different types of imaging, and neither is automatically better than the other. The most appropriate scan depends on your symptoms, clinical examination and the structures that need to be assessed.

At Light Joints Physiotherapy, we provide musculoskeletal ultrasound assessment alongside a detailed physiotherapy examination. Where appropriate, we can also advise when MRI or other investigations may be more suitable.

Find out more about our Physiotherapy & Ultrasound Assessment service →

What is the difference between Musculoskeletal ultrasound and MRI?

Musculoskeletal ultrasound

Musculoskeletal ultrasound uses sound waves to produce real-time images of muscles, tendons, ligaments and other soft tissues.

This type of assessment is often described as point-of-care ultrasound (POCUS) because the ultrasound examination is performed as part of the clinical assessment, at the time and place where the patient is being assessed. In musculoskeletal physiotherapy, POCUS can help assess relevant soft-tissue structures in real time and, where appropriate, during movement or with specific clinical tests.

One of its main advantages is that the clinician can assess structures dynamically, including during movement or when symptoms are reproduced.

Ultrasound can be particularly useful when assessing:

• Tendon problems

• Muscle injuries

• Ligament injuries

• Bursitis and some other inflammatory conditions

• Superficial soft-tissue abnormalities

• Some joint-related problems

• Conditions where movement or dynamic assessment is helpful

• Ultrasound-guided procedures where appropriate

However, ultrasound has limitations. It cannot see through bone, so some deeper structures and areas such as the spine are not suitable for assessment with ultrasound.

MRI

MRI uses a magnetic field and radio waves to produce detailed images of the body’s internal structures.

MRI can provide excellent information about both bone and soft tissues, including structures that cannot be adequately assessed with ultrasound.

It may be more appropriate when there is concern about:

• Deeper joint structures

• Spinal discs

• Nerve-related problems

• Bone or bone marrow abnormalities

• Stress injuries

• More complex or extensive injuries

The choice between ultrasound and MRI should therefore be based on the clinical question rather than simply choosing the scan that provides “more detail”.

Ultrasound vs MRI: a simple comparison

There is therefore no single “best” scan. The right imaging depends on what we are trying to find out.
 

When can an ultrasound scan be useful?

Ultrasound can be particularly helpful for a range of common musculoskeletal problems.

For example, it may provide useful information when assessing:

• Shoulder and rotator cuff problems

• Biceps tendon problems

• Tennis or golfer’s elbow

• Achilles tendon problems

• Plantar fascia problems

• Muscle injuries and tears

• Some knee tendon and ligament problems

• Some ankle and foot injuries

• Bursitis

• Localised soft-tissue swelling

It can also be useful when symptoms have not followed the expected recovery pattern or when the clinical examination raises a specific question about a tendon, muscle or other soft-tissue structure.

The scan should not be viewed in isolation, however. At Light Joints Physiotherapy, ultrasound forms part of an overall clinical assessment rather than replacing the examination.

Our Physiotherapy & Ultrasound Assessment service combines a detailed musculoskeletal assessment with ultrasound imaging where clinically appropriate. The findings are then explained to you in straightforward language, together with the recommended treatment or rehabilitation plan.
 

When might an MRI be more appropriate?

MRI may be considered when the area or structure causing your symptoms cannot be adequately assessed with ultrasound.

Examples include:

• Spinal disc problems

• Suspected nerve compression

• Deep joint problems

• Suspected stress injuries

• Bone marrow abnormalities

• Some cartilage or labral injuries

• More complex injuries involving deeper structures

If your symptoms suggest that MRI would provide more useful information, your physiotherapist can explain why and discuss appropriate next steps.

At Light Joints Physiotherapy, the aim is not to scan everyone. Imaging is considered when it is likely to add useful information to the clinical assessment.
 

Do I actually need a scan?

This is an important question.

Many musculoskeletal problems can be diagnosed and treated effectively following a good clinical assessment, without the need for imaging.

A scan may be useful when:

• Your symptoms are not improving as expected

• The diagnosis remains uncertain

• There has been a significant injury

• There is concern about a tendon, muscle or ligament injury

• The findings may change your treatment plan

• An injection or other procedure is being considered

• Further investigation is clinically indicated

Sometimes the most appropriate advice is not to have a scan.

A good assessment should help determine whether imaging is likely to change what happens next.
 

What happens during an ultrasound assessment at Light Joints Physiotherapy?

At Light Joints Physiotherapy, we start with your symptoms rather than the scan.

1. Clinical assessment

We discuss your symptoms, how they started, your medical history and what you are hoping to get back to.

A detailed musculoskeletal examination is then performed.

2. Ultrasound assessment

If ultrasound is clinically appropriate, the relevant structures are assessed using musculoskeletal ultrasound.

Because ultrasound provides real-time imaging, structures can also be assessed dynamically where appropriate.

3. Explanation of the findings

We explain what we have found and how the ultrasound findings relate to your symptoms and clinical examination.

The aim is to give you a clear understanding of what may be contributing to your pain rather than simply giving you an ultrasound image.

4. Treatment and rehabilitation

We then discuss the most appropriate next steps.

Depending on your presentation, this may include:

• Physiotherapy

• Exercise rehabilitation

• Activity modification

• Further investigation

• Referral for MRI or other medical assessment

• Injection treatment where clinically appropriate

The current Light Joints service is structured around this combination of assessment, ultrasound where appropriate, explanation and a personalised treatment plan.
 

Can ultrasound be used to guide injections?

Yes. Ultrasound can be used to identify relevant anatomical structures and guide certain procedures where appropriate.

At Light Joints Physiotherapy, ultrasound may form part of the decision-making process when considering an injection, alongside the clinical assessment.

Importantly, having an ultrasound does not automatically mean that you need an injection.

For some conditions, physiotherapy and rehabilitation may be the most appropriate treatment.
 

Ultrasound or MRI: which one should I choose?

Rather than choosing a scan based simply on availability or cost, the better question is:

“What do we need to find out?”

If the clinical question relates to a superficial tendon, muscle or other soft-tissue structure, ultrasound may provide useful information quickly and dynamically.

If the suspected problem involves deeper structures, bone, the spine or areas that cannot be adequately visualised with ultrasound, MRI may be more appropriate.

Sometimes neither scan is required.

That is why a clinical assessment should usually come first.
 

Physiotherapy and ultrasound assessment in Leeds & Bradford

Light Joints Physiotherapy provides musculoskeletal physiotherapy and ultrasound assessment across Leeds and Bradford, including clinics in:

• Colton, Leeds

• Rothwell, Leeds

• Greengates, Bradford

The ultrasound assessment service is designed for people with persistent pain, injuries or symptoms where additional imaging may help inform the diagnosis or treatment plan. The service currently includes a detailed physiotherapy assessment, ultrasound assessment where appropriate, explanation of the findings and a personalised treatment plan.

You do not need a GP referral to book privately.

Learn more about Physiotherapy & Ultrasound Assessment at Light Joints Physiotherapy →
 

Frequently asked questions

Do I need a GP referral for an ultrasound assessment?

No. You can self-refer for a private assessment at Light Joints Physiotherapy.

Will I definitely have an ultrasound during my appointment?

Not necessarily.

The decision to scan should be based on your symptoms and clinical assessment. If ultrasound is unlikely to add useful information, we will explain this.

Can I have an ultrasound and injection at the same appointment?

This depends on your clinical presentation and whether an injection is appropriate and safe. The decision should follow an appropriate assessment and discussion.

What if I need an MRI instead?

If your symptoms suggest that MRI would provide more useful information, this can be discussed with you and appropriate onward investigation or referral considered.

Is ultrasound painful?

Musculoskeletal ultrasound is non-invasive and does not involve needles or radiation. The examination itself is generally comfortable, although pressure from the ultrasound probe can sometimes reproduce symptoms in an already painful area.
 

The bottom line

Ultrasound and MRI are complementary investigations rather than competing scans.

Ultrasound can be particularly useful for many muscles, tendons, ligaments and other superficial soft tissues, while MRI provides excellent imaging of deeper structures, bone and areas such as the spine.

But the most important step is often the assessment that comes before the scan.

At Light Joints Physiotherapy, we combine clinical assessment with ultrasound where appropriate to help determine what may be causing your symptoms and what should happen next.

Find out more about our Physiotherapy & Ultrasound Assessment service →

Light Joints Physiotherapy
Leeds & Bradford
0113 873 0766
[email protected]