
Fetal MRI is not a replacement for ultrasound. It is an additional imaging tool used when ultrasound raises a question that MRI may answer better — especially in selected fetal brain, spine, chest, abdominal, placental or complex anomaly cases.

Ventriculomegaly, corpus callosum concern, posterior fossa anomaly, cortical development concern, spinal anomaly or complex CNS findings.
CPAM/lung lesion, diaphragmatic hernia, abdominal cyst, bowel concern, mass lesion or unclear organ relationship.
Placenta accreta spectrum concern or complex anatomy where MRI may help obstetric, neonatal or surgical planning.
| Question | Ultrasound role | MRI role |
|---|---|---|
| First-line fetal assessment | Ultrasound is the first-line test for fetal anatomy, growth, Doppler and fluid. | MRI is not usually first-line; it is added when a specific question remains. |
| Fetal brain detail | Neurosonography evaluates ventricles, midline, posterior fossa and brain anatomy. | MRI may add information about cortical development, posterior fossa or complex CNS anatomy. |
| Thoracic lesion | Ultrasound assesses lesion size, mediastinal shift, hydrops and blood supply. | MRI may help define lung volumes and relationship to chest structures in selected cases. |
| Placenta accreta concern | Ultrasound and Doppler are primary tools for placental invasion suspicion. | MRI may be added for posterior placenta or complex surgical planning. |
| Genetic diagnosis | Ultrasound can suggest structural patterns but cannot give chromosome results. | MRI does not replace genetic testing such as amniocentesis, microarray or targeted tests. |
Fetal MRI is an adjunct. It does not replace ultrasound, Doppler, fetal echo, genetic counselling or invasive testing when those are medically indicated.
Dr. Kunda reviews the ultrasound diagnosis, identifies the exact clinical question for MRI, explains what MRI can and cannot answer, helps choose timing, and integrates the MRI report back into fetal counselling and delivery planning.
Fetal Neurosonography Fetal DiagnosisMRI does not use ionizing radiation. It is used prudently in pregnancy when it is expected to answer a relevant clinical question.
No. Ultrasound remains the first-line fetal imaging test. MRI is added only for selected questions after ultrasound.
No. MRI shows anatomy. Genetic diagnosis may need counselling and tests such as CVS, amniocentesis, microarray or targeted genetic testing.
Mayflower Fetal Medicine & High-Risk Pregnancy Centre, Dhantoli, Nagpur, provides fetal ultrasound, prenatal diagnosis, fetal echocardiography, Doppler studies, genetic counseling and high-risk pregnancy care under Dr. Kunda Shahane.

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Surdham Complex, Behind Silver Palace Building, 2nd Lane from Panchsheel Sq., Opp. Yashwant Stadium, Dhantoli Nagpur - 440012
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