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Diagnostic Radiology in O’Fallon

gateway radiology consultantsBack Pain Center, in partnership with Gateway Radiology Consultants, is excited to provide onsite Musculoskeletal Diagnostic Ultrasound. Diagnostic Ultrasound is an a radiation-free imaging technique used to visualize structures including bones, muscles, tendons, ligaments and nerves.

As opposed to other imaging techniques such as x-ray and standard MRI, diagnostic ultrasound allows structures to be visualized under active movement, and provides immediate onsite results.

Why Choose Ultrasound ?


Diagnostic ultrasound is an effective tool used to diagnose soft tissue injuries in muscles and ligaments that cannot be seen on x-rays, and because it does not utilize radiation, it is safer.

Cost-effective and Functional

Diagnostic Ultrasound provides an affordable alternative to MR imaging. Unlike x-ray and MRI, ultrasound can visualize moving structures, allowing assessment of structures in painful positions. Motion analysis allows real time diagnosis of a variety of athletic and non-athletic injuries.

Onsite Services

Onsite imaging services provide immediate diagnosis. Immediate results allow faster and more accurate treatment.
Discover how we use safe and effective ultrasound to provide an accurate diagnosis. Contact us today to schedule your appointment!

O'Fallon ultrasound

Dr. Aaron Welk, specializes in performing diagnostic ultrasound examinations.

Aaron B. Welk, DC, DACBR

Diagnostic Ultrasound Services

Back Pain Center
Hutchings Farm Plaza
2534 Highway K
O’Fallon, MO 63368
Phone: (636) 277-0014
Monday 9am-1pm and 2pm-6pm
Tuesday 8am-1pm and 2pm-5pm
Wednesday 9am-1pm and 2pm-6pm
Friday 8am-1pm and 2pm-5pm

Lincoln County Chiropractic
#9 The Plaza
Troy, MO 63379
Phone: (636) 277-0014
Hours: Thursday 10am-6pm

*Mobile in-office examinations available by appointment only.

Commonly Diagnosed Conditions


Normal Rotator Cuff

Normal Rotator Cuff

Rotator Cuff Tear

Rotator Cuff Tear

Rotator cuff tears
Shoulder bursitis
Shoulder Impingement
Frozen shoulder
Shoulder arthritis


Flexor and extensor tendinopathy
Muscle and tendon injury
Collateral ligament injury
Nerve entrapment


Normal Elbow Medial Collateral Ligament

Normal Elbow Medial Collateral Ligament

Elbow Medial Collateral Ligament Injury with joint gapping

Elbow Medial Collateral Ligament Injury with joint gapping

Ganglion cysts
Carpal tunnel syndrome/nerve entrapments
Muscle and tendon injury
De Quervain syndrome


Quadriceps and Patellar Tendinopathy
Muscle and tendon injury
Collateral ligament injury
Meniscal Tears
Baker’s Cysts


Muscle and tendon injury
Ankle sprains
Plantar fasciosis
Tarsal Tunnel syndrome/nerve entrapment

Body Wall:

Rib Fractures
Oblique Strain
Abdominal Strain

For more information or to schedule an appointment with Dr. Aaron Welk, please contact our office today!

O’Fallon Diagnostic Ultrasound at Back Pain Center | (636) 978-5511