What are five disadvantages of MRI for imaging the uterus?

What are five disadvantages of MRI for imaging the uterus?

1. High cost (compared with ultrasound; only slightly higher than CT)
2. Long examination time
3. Contraindicated in patients with pacemakers or certain ferromagnetic implants
4. Poor visualization of calcification
5. Possible intolerance to the procedure (e.g., as a result of claustrophobia)