MRI Thoracic Spine Without Contrast — Dictation, Appropriateness, and Dose for Residents
1. The Mid-Day Myelopathy Read: Nailing the Thoracic Spine MRI
It’s 2 PM on your neuro rotation. The next case on the list is an MRI of the thoracic spine without contrast for myelopathy. Your attending is a stickler for detail: they expect you to correctly count the vertebrae, characterize any compression fracture as acute vs. chronic vs. pathologic, and precisely describe the location and pattern of any cord signal abnormality. This isn’t just about finding a disc bulge; it’s about synthesizing the findings into a coherent diagnosis that will guide the neurologist or surgeon. Getting it right on the first read saves you from a painful read-out and a list of addenda. When I was a resident, this was the kind of study where a solid template and a systematic approach made the difference between a confident read and a half-hour of second-guessing. For more tools to get you through call and beyond, check out the residents and fellows resource hub.
2. What an MRI Thoracic Spine Without Contrast Covers and What Attendings Look For
This study is the workhorse for evaluating the discs, spinal cord, and vertebral bodies of the mid-back, especially when there’s no specific concern for infection, tumor, or a post-operative complication that would mandate contrast. Your attending expects a report that systematically evaluates for the core pathologies this study is designed to detect.
**What this study answers:**
* Is there a thoracic disc herniation causing cord compression?
* Is there a vertebral compression fracture, and is it acute or chronic?
* Are there features of a pathologic fracture suggesting metastasis?
* Is there abnormal signal in the spinal cord to explain the patient’s myelopathy (e.g., demyelinating plaque, transverse myelitis, infarct)?
* Is there central canal or foraminal stenosis?
Your report should be structured to answer these questions clearly. Start with the most sensitive sequence—the sagittal STIR—to catch edema in the bone marrow or spinal cord. Then, move through the T2 and T1 sequences to characterize the anatomy and any lesions you found.
3. Radiology Report Template for MRI Thoracic Spine Without Contrast
This is a solid starting point you can load into your dictation system. It’s designed to be comprehensive, ensuring you don’t miss key elements that attendings and referring clinicians look for.
Technique
Multiplanar, multisequence magnetic resonance imaging of the thoracic spine was performed without the administration of intravenous contrast material. Sequences include sagittal T1, T2, and STIR-weighted images, as well as axial T1 and T2-weighted images.
Findings
Vertebral body alignment and numbering: The thoracic spine demonstrates [normal kyphosis/hyperkyphosis/straightening]. Vertebral body heights are maintained. No spondylolisthesis. Vertebral numbering is confirmed with a localizer including the [cervicothoracic/lumbosacral] junction. [No transitional anatomy is identified./Specify transitional anatomy, e.g., lumbarized S1].
Marrow signal: Vertebral body marrow signal is [homogeneous and appropriate for age/demonstrates diffuse heterogeneity/shows focal signal abnormality at LEVEL(S)].
Vertebral compression fractures: [None/Describe level, acuity, and features].
(Example for acute fracture): At T[#], there is an acute-appearing superior endplate compression fracture with approximately [##]% height loss, associated with T1 hypointense and STIR hyperintense marrow edema.
(Example for pathologic fracture): At T[#], there is a compression fracture with involvement of the posterior cortex and an associated paraspinal soft tissue mass. The marrow signal is T1 isointense to muscle.
Intervertebral discs: [Normal disc height and signal/Multilevel degenerative disc disease with disc desiccation and height loss, most pronounced at LEVEL(S)].
(Example for herniation): At T[#]-T[#], there is a [central/paracentral/foraminal] disc [protrusion/extrusion] resulting in [mild/moderate/severe] central canal stenosis and [contacting/compressing] the ventral thoracic spinal cord.
Spinal cord: The thoracic spinal cord is normal in caliber and signal. The conus medullaris terminates at the [L1-L2] level, which is normal.
(Example for cord signal abnormality): There is a focal region of T2 hyperintense signal within the spinal cord at the T[#] level, spanning approximately [##] mm craniocaudally. This is located in the [central/dorsal/ventral] cord. No cord expansion is seen.
Neural foramina: The neural foramina are patent bilaterally.
Paraspinal soft tissues: The visualized paraspinal soft tissues are unremarkable. No paraspinal mass or fluid collection.
Impression
1. [Normal MRI of the thoracic spine without contrast.]
(Example Impression for Degenerative Disease):
1. Multilevel degenerative disc disease of the thoracic spine, most significant at T[#]-T[#] where a central disc protrusion causes moderate central canal stenosis and abuts the ventral spinal cord.
2. No acute fracture, malalignment, or suspicious marrow lesion.
(Example Impression for Myelopathy):
1. Focal T2 hyperintense signal within the spinal cord at the T[#] level, suspicious for a demyelinating plaque. Clinical correlation for multiple sclerosis is recommended.
2. No evidence of cord compression.
4. Free Radiology Template Sources
Building a personal library of templates is a rite of passage. If you’re looking for more examples or templates for other modalities, two great free repositories exist. These are excellent, non-commercial resources maintained by the radiology community.
- RadReport.org: Curated by the RSNA, this is a comprehensive library of peer-reviewed templates covering nearly every study imaginable.
- Radiology Templates (AU): An excellent, straightforward library maintained by Australian radiologists with clean, practical templates.
5. The Next-Level Move: Free-Form Dictation to Structured Report
A static template is a great start, but it still requires you to click through fields and manually fill in every detail. The real bottleneck is converting your observations—the positive findings you see on the screen—into a perfectly structured, attending-ready report.
This is where AI-powered dictation tools can streamline your workflow. Instead of navigating a template, you can simply dictate your findings naturally. For example: “Acute superior endplate compression fracture at T8 with marrow edema. Central disc extrusion at T6-T7 is compressing the cord.” The GigHz Precision AI tool takes that free-form dictation and automatically generates a complete, structured report. It organizes your findings under the correct headings, uses standardized terminology, and can apply frameworks like ACR and SIR. When a finding triggers a need for a specific classification, it can surface the relevant Clinical Decision Support (CDS) automatically, ensuring your report is complete and compliant.
6. When Should You Order an MRI Thoracic Spine Without Contrast? ACR Appropriateness Criteria
Knowing when a study is indicated is as important as reading it correctly. The American College of Radiology (ACR) provides evidence-based guidelines to help clinicians choose the right test for the right reason.
For a patient presenting with **myelopathy** (signs and symptoms of spinal cord dysfunction like gait disturbance, hyperreflexia, or a sensory level), an **MRI of the thoracic spine without contrast is usually appropriate**. It is the primary modality for directly visualizing the spinal cord and identifying intrinsic cord pathology or extrinsic compression.
If there is a specific concern for infection (discitis-osteomyelitis) or a spinal tumor, an MRI with and without contrast is the preferred study to evaluate for enhancement patterns. In cases where MRI is contraindicated (e.g., incompatible pacemaker), CT myelography is a suitable alternative. Plain X-rays have a limited role but can be used for initial screening for fracture or alignment issues.
7. How Much Radiation Does an MRI Thoracic Spine Deliver?
One of the key advantages of MRI is its lack of ionizing radiation.
An MRI of the thoracic spine delivers an **effective radiation dose of 0 mSv**. This is because the imaging modality uses strong magnetic fields and radio waves, not X-rays, to generate images. This makes it an exceptionally safe study for patients of all ages, especially when serial imaging may be required to follow up on conditions like multiple sclerosis.
| Imaging Study | Effective Radiation Dose | ACR Radiation Level |
|---|---|---|
| MRI Thoracic Spine | 0 mSv | None |
| CT Myelography (Alternative) | 2-10 mSv (Varies) | Moderate |
| Chest X-ray (for comparison) | ~0.1 mSv | Very Low |
8. MRI Thoracic Spine Imaging Protocol — Key Sequences and Parameters
A standard non-contrast thoracic spine MRI protocol is designed to provide both an anatomical overview and high-contrast detail of the spinal cord, discs, and marrow. The core of the protocol is a set of sagittal sequences for overall assessment, supplemented by axial images through any areas of interest.
The sagittal STIR (Short Tau Inversion Recovery) sequence is particularly crucial, as it is highly sensitive to fluid and edema. It’s often the first sequence you should review to quickly spot acute pathology like a compression fracture, metastasis, or cord edema from myelitis.
| Sequence | Plane | Slice Thickness | Key Purpose |
|---|---|---|---|
| T1-weighted | Sagittal | 3-4 mm | Anatomic detail, marrow signal characterization |
| T2-weighted | Sagittal | 3-4 mm | CSF signal, cord pathology, disc hydration |
| STIR | Sagittal | 3-4 mm | Edema-sensitive (fracture, tumor, inflammation) |
| T2-weighted | Axial | 3-4 mm | Cross-sectional cord/foramina, disc herniation |
| T1-weighted (Optional) | Axial | 3-4 mm | Anatomic correlation for pathology seen on other sequences |
Common protocol pitfalls: The most common error is miscounting vertebral levels due to transitional anatomy. Always use a localizer that includes a reliable anchor like C2 or the lumbosacral junction. For cord detail, a slice thickness of 3 mm is preferred over 4 mm, as it reduces partial volume averaging.
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. We’re offering an extended free trial of GigHz Precision AI specifically for trainees. You can dictate your positive findings in free form, and the AI will generate a complete, structured report using ACR and SIR templates, firing the appropriate clinical decision support automatically.
All we ask in return is your feedback so we can keep improving the product for trainees on the front lines.
The signup is simple. No credit card, no long forms. To apply, just provide these three items:
- Your PGY year (e.g., PGY-2, PGY-4)
- Your training type (radiology residency or specific fellowship — IR, body, MSK, neuro, peds, breast, nucs)
- Your training program / hospital name
- (Optional) Your institutional email
Ready to give it a try? Apply for the residents free-access program and we’ll get you set up.
10. Frequently Asked Questions
Is GigHz Precision AI HIPAA-compliant?
Yes. The platform is designed for de-identified workflows by default. It processes the clinical content of your dictation without requiring patient identifiers, ensuring compliance with HIPAA privacy and security rules.
Do I need my hospital’s IT department to set it up?
No. GigHz Precision AI is a browser-based tool. There is no software to install on hospital computers. It works on any modern web browser, including the one in your reading room, on your laptop, or even on a call-room iPad.
How does this work with PowerScribe or other dictation systems?
It works alongside your existing system. You can dictate into the GigHz interface, let the AI structure the report, and then copy-paste the final, clean text into your PACS/RIS. This avoids the need for complex integrations and lets you use the tool immediately.
Can I use this on my phone or iPad?
Yes, the platform is fully responsive and works on mobile devices and tablets. This is particularly useful for reviewing or editing reports on the go or using a tablet in the reading room.
Can I customize the report templates?
Yes. While the system comes pre-loaded with standard templates based on ACR and other society guidelines, you can create, modify, and save your own templates to match your personal preferences or your institution’s specific formatting requirements.
What happens after my residency or fellowship ends?
Trainee accounts can be converted to standard attending accounts. We offer discounts for recent graduates to help you continue using the tools that made you efficient during training as you transition into practice.
Free GigHz Tools That Pair With This Article
Three free tools that complement the material above:
- ACR Appropriateness Criteria Lookup — Type an indication or clinical scenario in plain language and get the imaging studies the ACR rates for it, with adult and pediatric radiation levels. Built directly from 297 ACR topics, 1,336 clinical variants, and 15,823 procedure ratings.
- GigHz Imaging Protocol Library — A searchable library of 131 imaging protocols with the physics specs surfaced and the matching ACR Appropriateness Criteria alongside. Plain-English narratives readable in 60 seconds, organized by modality.
- GigHz Radiation Dose Calculator — Pick the imaging studies a patient has had and see total dose in millisieverts (mSv) with comparisons to natural background radiation, transatlantic flights, and chest X-rays. Useful for shared decision-making.
Reviewed by Pouyan Golshani, MD, Interventional Radiologist — May 7, 2026
