MRI • CT • Sonography
Quick Answer
MRI uses magnetic fields (no ionising radiation) and excels at imaging soft tissue, brain, spine, joints and ligaments. Scan takes 20–45 minutes. CT scan uses X-rays and excels at bones, lungs, trauma and acute bleeds. Scan takes just 5–15 minutes. Pick MRI for detailed soft-tissue assessment, CT for fast bone-or-chest diagnosis. Your referring doctor decides which fits your clinical question.
MRI vs CT — side-by-side comparison
| Feature | MRI | CT Scan |
|---|---|---|
| Technology | Magnetic fields + radio waves | X-rays + computer reconstruction |
| Ionising radiation | None | Yes (low dose) |
| Best for | Brain, spine, joints, soft tissue, ligaments, tendons, cartilage | Bones, lungs, trauma, abdomen, acute bleeds, kidney stones, angio |
| Scan time | 20–45 minutes | 5–15 minutes |
| Noise level | Loud (60–90 dB) | Quiet |
| Claustrophobia issue | Common (closed bore) | Minimal (open ring) |
| Contrast type | Gadolinium (rare reaction) | Iodinated (kidney caution) |
| Cost (Imaging World) | ₹3,600–₹12,000 | ₹2,500–₹9,500 |
| Pregnancy | Generally safe | Avoid unless urgent |
When is MRI the right choice?
- Brain conditions — stroke, tumour, multiple sclerosis, dementia
- Spine — disc prolapse, nerve compression, spinal cord lesions
- Joints — ACL/meniscus tear, rotator cuff, cartilage damage
- Soft-tissue tumours and inflammation
- Liver, kidney and pelvic lesions where contrast resolution matters
- Pregnancy when imaging beyond ultrasound is required
When is CT the right choice?
- Trauma — head injury, fractures, internal bleeding
- Lung evaluation — pneumonia, fibrosis, lung cancer, post-COVID assessment
- Abdominal pain — appendicitis, kidney stones, intestinal obstruction
- Stroke (acute) — to rule out bleed before thrombolysis
- CT angiography of coronary, brain or peripheral vessels
- When MRI is contraindicated (pacemaker, metal implants, severe claustrophobia)
Can I have both?
Yes — in some cases your doctor will order CT first (because it's fast) and then MRI for detailed characterisation. Conversely, an inconclusive MRI sometimes leads to a CT for bony detail. Each scan answers a different clinical question; they complement rather than replace each other.
Which costs more?
MRI is typically more expensive than CT — at Imaging World, MRI starts from ₹3,600 (post-discount) while CT starts from ₹2,500. The price difference reflects the longer scan time, more complex equipment maintenance and higher operating cost of MRI scanners.
Not sure which scan you need?
Our radiologists will guide you based on your prescription.
Call +91 63535 06575