MRI THUMB
Also Known As
SENIOR
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FAMILY
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Certified Labs
NABH Accredited
Reports in
6hrs
Measures
No description available
Identifies
No identification information available
About The Test
MRI thumb is a specialized Magnetic Resonance Imaging exam that zeroes in on:
- Thumb bones (distal phalanx, proximal phalanx, first metacarpal)
- Ligaments—especially the ulnar collateral ligament (UCL)
- Tendons such as EPL and FPL
- Surrounding soft tissues and joint capsule
How It Works
A strong magnetic field and radio waves create high-contrast cross-sectional images. The result? Your doctor sees injuries that X-rays often miss, guiding the best treatment path.
List of Parameters
- FOV: 140 × 70 mm SFOV optimized for thumb anatomy
- Slice thickness: 2 mm axial, coronal, sagittal
- Sequences: T1 TSE, T2 STIR, PD fat-sat
- Matrix: 256 × 192 for crisp detail
- TR/TE: Tailored to our 3T magnet specs for maximum clarity
Why This Test
- Detect ligament tears (UCL, RCL)
- Evaluate tendon injuries (EPL, FPL)
- Spot occult fractures or bone bruises
- Assess early arthritis or synovitis
When to Take Test
Benefits
MRI of Thumb Benefits:
- Non-invasive & radiation-free
- Superior soft-tissue contrast—see what X-rays can’t
- Directly guides surgical vs. conservative treatment
- Digital report with annotated images delivered same day
Conditions Diagnosed with MRI for Thumb
- Gamekeeper’s / skier’s thumb (UCL tear)
- De Quervain’s tenosynovitis
- Scaphoid fracture missed on X-ray
- Basal thumb arthritis
- Flexor/extensor tendon ruptures
Preparing for test
- Remove all metallic objects—jewelry, watches, belts
- Wear metal-free clothing or change into our gown
- Inform staff about implants, pregnancy, or claustrophobia
- Fasting not required—eat normally unless contrast is planned
Pre-requisites
- Referral note from orthopedician or GP
- Bring previous imaging reports for comparison
Best Time to Take the MRI Thumb
- Within 1–2 weeks of acute injury for optimal soft-tissue detail
- Morning slots reduce waiting time and fit busy schedules
Eligibility
- Adults and children >5 years (cooperation permitting)
- Pregnancy: Second or third trimester only if clinically essential
Step-by-Step Procedure at Cadabams Diagnostics
- Check-in & Screening (5 min)
- Positioning: Hand palm-up in dedicated thumb coil
- Scanning: 20–30 min with intermittent instructions
- Radiologist review before you leave
Caution Before the Test
- Disclose tattoos with metallic ink—they may heat up
- Sedation available for severe claustrophobia (request in advance)
Test Results
Results and Interpretations
| Finding / Observation | Description | General Interpretation / Significance |
|---|---|---|
| UCL thickness | 3 mm partial disruption | Skier’s thumb grade II |
| EPL tendon | Intact, normal signal | No tendon rupture |
| First CMC joint | Mild joint-space narrowing | Early osteoarthritis |
| Bone Marrow Edema | An area of bright signal within the bone marrow on fluid-sensitive sequences. | This is a non-specific sign of stress. It can indicate a hidden fracture, bone bruise, inflammation from arthritis, or infection. |
| Synovial Enhancement | Brightness of the joint lining (synovium) after the injection of contrast dye. | Suggests active inflammation (synovitis), a hallmark of conditions like rheumatoid arthritis or an infection. |
| Soft Tissue Mass | A well-defined, fluid-filled sac seen adjacent to a joint or tendon sheath. | Most commonly represents a ganglion cyst. Other masses would be described by their size, location, and characteristics to determine if they are benign or require further evaluation. |
Risks & Limitations
Safety
- No radiation—safe for repeated imaging
- Contrast dye (gadolinium) is low-risk and used only when needed
Contraindications
- Pacemaker or non-MRI-safe implants
- Severe claustrophobia (we offer open-bore 3T and sedation)
Limitations
- May miss tiny cortical fractures—a follow-up CT scan can complement the findings.
FAQs
How long does an MRI thumb take?
20–30 minutes total.
Is contrast always needed?
Only if inflammation, infection, or tumor is suspected.
Can I drive after the scan?
Yes, unless you opted for sedation.
What if I’m claustrophobic?
We offer an open-bore 3T scanner or mild oral sedation.
When will I receive results?
Standard: 4–6 hours. Urgent cases: within 1 hour.
What is the estimated cost of an MRI for the thumb?
The cost of an mri for thumb can vary depending on several factors, including your specific location, insurance plan, and whether contrast material is used. For precise pricing and insurance information, please contact our billing department.
Is an MRI THUMB safe for children?
Yes, MRI is considered a very safe imaging modality for children because it does not use ionizing radiation. For young children who may have trouble staying still, sedation may be coordinated by your referring doctor to ensure we can obtain high-quality, motion-free images. This is an important consideration in pediatric care.