MRI Elbow — Dictation, Appropriateness, and Dose for Residents

1. The High-Stakes Elbow MRI: Getting Beyond “Epicondylitis”

You pick up the outpatient MRI elbow. The indication: “Medial elbow pain.” The patient is a 22-year-old college baseball pitcher. Your attending is an MSK fellowship-trained beast who expects you to know the difference between an undersurface partial tear of the UCL anterior bundle and simple tendinosis. Just dictating “thickening and signal” isn’t going to cut it. You need to look for the subtle ‘T sign,’ comment on the integrity of the sublime tubercle insertion, and give the orthopedic surgeon a clear, actionable report.

When I was a fellow, these were the reads that separated the rookies from the residents who were ready for the next level. It’s not just about seeing the finding; it’s about describing it with the precision the surgeon needs. This guide gives you a structured template and the key principles to nail the MRI elbow every time. For more high-yield guides and tools, check out our free residents and fellows resource hub.

2. What an MRI of the Elbow Covers and What Attendings Look For

An MRI of the elbow is the definitive non-invasive study for soft tissue and cartilage pathology. While X-rays handle acute fractures and CT can offer better bony detail, MRI excels at evaluating the structures that cause chronic, debilitating pain in athletes and workers alike. Your attending expects a systematic evaluation of all key compartments.

A comprehensive report should systematically address:

• Ligaments: The medial ulnar collateral ligament (UCL) complex, especially the anterior bundle in throwing athletes, and the lateral collateral ligament (LCL) complex, key for posterolateral stability.
• Tendons: The common extensor and flexor tendon origins for epicondylitis, the distal biceps tendon insertion for tears (complete or partial), and the triceps tendon.
• Nerves: The ulnar nerve as it passes through the cubital tunnel, looking for signs of compression or neuritis.
• Articular Cartilage & Bone: The radiocapitellar and ulnohumeral joints for chondral defects, osteochondritis dissecans (OCD) of the capitellum, loose bodies, and marrow edema.
• Synovium & Effusion: The presence of joint fluid, synovitis, or bursitis (e.g., olecranon bursitis).

Common indications include a throwing athlete with medial elbow pain, suspected acute biceps rupture, persistent epicondylitis unresponsive to conservative therapy, or symptoms of ulnar neuropathy at the elbow.

3. Radiology Report Template for MRI Elbow (Without and With Contrast)

Use this template as a starting point for your dictations. The key is to be systematic. Go through each anatomical structure in the same order every time so you don’t miss anything.

Technique

Multiplanar, multisequence magnetic resonance imaging of the right/left elbow was performed without and with the intravenous administration of [X] mL of [Gadolinium-based contrast agent]. Sequences included axial T1 and fat-saturated T2-weighted images, coronal T1 and STIR images, and sagittal T1 and fat-saturated T2-weighted images.

(If applicable: A FABS [Flexed Abducted Supinated] view was also obtained for dedicated evaluation of the distal biceps tendon.)

Findings

LIGAMENTS:
– Ulnar Collateral Ligament (UCL): The anterior, posterior, and transverse bundles are evaluated. The anterior bundle is [intact, thickened, sprained, partially torn, completely torn]. [Describe location of tear: proximal, midsubstance, or distal at the sublime tubercle]. [No] evidence of an undersurface tear or ‘T sign’ to suggest extravasation.
– Lateral Collateral Ligament (LCL) Complex: The radial collateral ligament, lateral ulnar collateral ligament (LUCL), and annular ligament are [intact, sprained, torn].

TENDONS:
– Common Extensor Tendon: The origin at the lateral epicondyle is [normal in caliber and signal, demonstrates tendinosis, has a partial-thickness tear, has a full-thickness tear]. [Note which tendon is primarily involved, usually the ECRB].
– Common Flexor Tendon: The origin at the medial epicondyle is [normal, demonstrates tendinosis, has a tear].
– Distal Biceps Tendon: The tendon is [intact at its insertion on the radial tuberosity, demonstrates tendinosis, is partially torn, is completely torn and retracted by X cm]. [No] surrounding fluid or hematoma.
– Triceps Tendon: The tendon is [intact at its insertion on the olecranon, demonstrates tendinosis, is torn].

NERVES:
– Ulnar Nerve: The nerve is [normal in caliber and signal] as it passes through the cubital tunnel. [No] evidence of subluxation, perineural scarring, or a space-occupying lesion. [Compare size to the median nerve at the same level].
– Median and Radial Nerves: Unremarkable.

BONES AND CARTILAGE:
– Articular Cartilage: The articular surfaces of the radiocapitellar and ulnohumeral joints are [preserved, demonstrate focal thinning, demonstrate a full-thickness chondral defect].
– Capitellum: [No] evidence of osteochondritis dissecans. [If present, describe the size of the lesion, stability based on T2 signal at the interface, and any fragmentation].
– Marrow Signal: [Normal]. [No] fracture, contusion, or aggressive osseous lesion.

OTHER FINDINGS:
– Joint Effusion: [None, trace, small, moderate, large].
– Synovium: [Normal, thickened and enhancing consistent with synovitis].
– Muscles: [Normal signal and bulk].
– Visualized soft tissues: Unremarkable.

Impression

1. [Finding 1, e.g., High-grade partial-thickness tear of the anterior bundle of the ulnar collateral ligament at its distal insertion, suspicious for an undersurface tear.]
2. [Finding 2, e.g., Mild tendinosis of the common extensor tendon origin without discrete tear, consistent with lateral epicondylitis.]
3. [Finding 3, e.g., Normal caliber and signal of the ulnar nerve within the cubital tunnel.]

4. Free Template Sources for Your Personal Library

Building a personal macro library is a rite of passage for every resident. While the template above is a great starting point, two great free repositories exist for you to explore and adapt templates for nearly any study you’ll encounter on call.

• RadReport.org: This is the RSNA-curated library. It’s comprehensive, peer-reviewed, and considered a standard for structured reporting.
• Radiology Templates (AU): Maintained by Australian radiologists, this site offers a fantastic, user-friendly collection of templates that are practical and easy to modify.

5. The Next-Level Move: From Free-Form Dictation to Structured Report

The biggest time sink during a busy shift isn’t making the finding—it’s formatting the report so it’s clean, structured, and has all the elements your attending expects. You see the UCL tear, you dictate the positive finding, but then you spend minutes clicking through a macro, deleting negative lines, and making sure the impression matches the findings.

This is where AI-powered tools can streamline your workflow. Instead of manually structuring the report, GigHz Precision AI is designed to take your free-form dictation of the positive findings and automatically generate a complete, structured report. It uses pre-loaded templates from the ACR and SIR, ensuring your output is standardized and comprehensive. This approach helps you focus on the pathology, not the clerical work of report generation.

6. When Should You Order an MRI of the Elbow? ACR Appropriateness Criteria

The decision to order an MRI is guided by clinical context. For a patient presenting with chronic elbow pain, the American College of Radiology (ACR) provides clear guidance. Per the ACR Appropriateness Criteria for Chronic Elbow Pain, an MRI of the elbow without contrast is Usually Appropriate as a primary evaluation tool.

While standard MRI is often sufficient, certain clinical questions may call for alternatives:

• An MR arthrogram may be more appropriate when there is a high suspicion for a partial undersurface tear of the ulnar collateral ligament (UCL), as the intra-articular contrast can highlight the classic “T sign.”
• Ultrasound can be a great first-line modality for evaluating superficial structures like the common extensor and flexor tendons, especially in cases of suspected epicondylitis. Its utility, however, is highly operator-dependent.
• A CT arthrogram is a viable alternative for evaluating ligaments and cartilage when a patient has a contraindication to MRI.

For an acute fracture, an X-ray remains the first and best choice, with CT being used for complex fracture patterns. MRI is generally not the first choice for a routine workup of osteoarthritis, where radiographs provide the necessary information.

7. How Much Radiation Does an MRI of the Elbow Deliver?

One of the primary advantages of MRI is its lack of ionizing radiation. An MRI of the elbow delivers an effective radiation dose of 0 mSv.

This is a key differentiator from CT, which is sometimes used for complex bony pathology around the elbow. The absence of radiation makes MRI an excellent choice for younger patients, athletes who may require multiple follow-up studies, and any clinical scenario where soft-tissue evaluation is the primary goal.

Source: Protocol YAML (curated by IR + ACR RRL). Dose estimates are typical values and may vary.

8. MRI Elbow Imaging Protocol — Sequences, Contrast, and Pitfalls

A standard MRI elbow protocol is designed to provide a comprehensive assessment of all the key anatomical structures. The sequence stack provides both anatomic detail and fluid-sensitive images in all three planes.

The table below outlines a typical protocol. Note the optional FABS view, which is incredibly helpful when the primary clinical question is a partial tear of the distal biceps tendon.

Common protocol pitfalls:

The most significant technical challenge is patient positioning. The “superman” position (patient prone, arm extended overhead) places the elbow at the magnet’s isocenter, yielding the best possible image quality. However, it’s very uncomfortable, and most patients can’t hold it for the 30+ minutes required. The more practical default is supine with the arm at the side. While this results in slightly off-isocenter imaging, it’s far more tolerable and usually provides diagnostic quality images for most indications.

9. The 3-Months-Free Offer for Residents and Fellows

3+ months free for radiology residents and fellows

Look like a rockstar on your reports. With the GigHz Radiology Report Assistant, you can dictate your positive findings in free form, and the AI will generate a perfectly structured report using ACR and SIR templates. It helps you get the key classifications and required elements into your impression without slowing down your read.

All we ask in return is your feedback so we can keep improving the product for trainees. To get set up, just provide three items:

1. Your PGY year (e.g., PGY-2, PGY-4)
2. Your training type (radiology residency or fellowship specialty)
3. Your training program / hospital name

There’s no credit card required and no long forms to fill out. Just reply to the application with those three details, and we’ll get you started. Ready to give it a try? Apply for the residents free-access program.

10. Frequently Asked Questions

Is it HIPAA-compliant?

Yes. The platform is designed for de-identified workflows by default. You dictate findings, not patient-identifying information. It operates as a “business associate” under a BAA, just like any other clinical software vendor.

Do I need my hospital’s IT department to set this up?

No. GigHz Precision AI is browser-based. There is no software to install on hospital machines. It works on the call-room computer, your personal laptop, or even an iPad.

Does this replace PowerScribe or other dictation systems?

No, it works alongside them. You can dictate into the GigHz web app, and it generates a structured text report that you can copy and paste into your PACS/RIS/dictation system in a single click.

Can I use this on my phone or iPad?

Yes, the web application is fully responsive and works on any modern browser, including on mobile devices and tablets.

Can I customize the templates?

Yes, you can modify the base templates or create your own from scratch to match your personal style or your institution’s specific requirements.

What happens after my residency or fellowship ends?

The free access is for trainees. After you graduate, you can transition to a standard attending plan. We offer discounts for recent graduates to help you get started in your new role.