Reducing Radiation Dose on CT: How IMR Technology Ensures Safety
Learn how modern IMR (Iterative Model Reconstruction) technology on Philips CT scanners reduces radiation dose by up to 80% while providing crystal clear images.
Read more →Brain MRI and Cerebral Vessel MRI: Differences, Indications and Contraindications
While both procedures use magnetic resonance technology to provide 3D images, they serve different diagnostic purposes. Brain MRI focuses on the tissue itself, while MRA (Magnetic Resonance Angiography) evaluates the vascular network.
Comparison: Brain MRI vs. MRA
| Feature | Brain MRI | MRA (Vessel MRI) |
|---|---|---|
| Primary Target | Brain tissue, cortex, pituitary gland | Arteries and veins |
| Detects | Tumors, MS, strokes, inflammation | Aneurysms, stenosis, malformations |
| Clinical Use | Neurological disorders | Circulation & stroke risk |
Indications for Brain MRI
- Persistent or sudden severe headaches;
- Epilepsy, seizures, or frequent loss of consciousness;
- Suspected tumors, infections, or multiple sclerosis;
- Trauma and internal bleeding assessment.
Indications for Vessel MRI (MRA)
- Screening for aneurysms and vascular malformations;
- Atherosclerosis and arterial stenosis;
- Pre-stroke conditions and intracranial pressure evaluation;
- Unexplained dizziness or chronic circulation issues.
Contraindications
Absolute: Pacemakers, neurostimulators, ferromagnetic clips, or metal fragments in the body.
Relative: Severe claustrophobia, first trimester of pregnancy, and non-removable metal-containing tattoos.
All MRI procedures at Brigid Diagnostic Center are performed on advanced Philips and Esaote systems, ensuring maximum precision.
