MRI in Pediatrics-Tool for DNB Practical examination in Pediatrics

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Slide 1 :

Tool for DNB Practical examination in pediatrics MRI in pediatrics

Slide 2 :

MRI-A problem solving tool! CT and USG initial INVG MRI helps in cases where both are equivocal Initially MRI – only for Brain and Spine (longer imaging times)

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ADVANTAGES OF MRI MULTIPLANAR CAPABILITIES BETTER INTRINSIC SOFT TISSUE CONTRAST NO RADIATION NO IODINATED CONTRAST DISADVANTAGES OF MRI COST CLAUSTROPHOBIA CALCIFICATION NOT WELL SEEN

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MRI IN PEDIATRICS SPECIAL ISSUES NORMAL VARIANTS AND APPEARANCES SPECIAL SCAN PROTOCOLS FASTER SEQUENCES LOW RF ENERGY SEDATION

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MRI IN PEDIATRICS - INDICATIONS BRAIN MRI Seizures including infections and Neoplasms Perinatal vascular insult (HIE) Congenital Anomalies and Neuroregression SPINE MRI Congenital Abnormalities Scoliosis OTHER INDICATIONS Musculoskeletal system Chest Abdomen and Pelvis Miscellaneous

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Infection

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TUBERCULOMA

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NEUROCYSTICERCOSIS

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NEUROCYSTICERCOSIS

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Tuberculomas Vs Neurocysticercosis Hypointense on T2WI Hyperintense on T2WI

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Meningitis

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Herpes encephalitis

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Japanese B Encephalitis

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ADEM(acute disseminated encephalomyelitis) Infective

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TORCH(CMV)

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BRAIN TUMORS

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Pilocytic astrocytoma post contrast Tumors

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CRANIO PHARYNGIOMA

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CONGENITAL ANOMALIES PHAKOMATOSIS & NEUROREGRSSION

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Neuronal migration anomalies Agyria/pachygyria

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Polymicrogyria

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Heterotopia

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Schizencephaly

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Tuberous sclerosis Phakomatosis

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Sturge Weber Syndrome Phakomatosis

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Leukodystrophies

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DISTINCTIVE FEATURES OF LEUKODYSTROPHIES COMPLETE OR NEAR LACK OF MYELINATION Canavan Disease Pelizaeus-Merzbacher Disease FRONTAL WHITE MATTER MOST INVOLVED Alexander Disease OCCIPITAL WHITE MATTER MOST INVOLVED Adrenoleukodystrophy THICK MENINGES Hurler Syndrome

Slide 29 :

Normal head circumference Central to peripheral pattern Metachromatic leukodystrophy (onset: 4 to 8 years) Krabbe's disease (onset: before 4 years) Pelizaeus-Merzbacher disease (onset: 4 to 8 years, boys) Dorsal to ventral pattern Adrenoleukodystrophy* (onset: 4 to 8 years) Increased head circumference Peripheral to central pattern Canavan's disease (onset: infancy) Ventral to dorsal pattern Alexander's disease* (onset: infancy) *Enhances with gadolinium.

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Canavan’s disease

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Adrenal Leukodystrophy

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Vascular Insults

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Hypoxic ischaemic encephalopathy Perinatal insult

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PVL

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Acute Infarct

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MOYA MOYA

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MRI in Pediatrics-Tool for DNB Practical examination in Pediatrics
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