Advance of CT scan in Diagnostic Imaging

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Advance of CT scan in Diagnostic Imaging

• Dr. P.Rajan
• MD DMRD DNB
• Asst. Professor Dept.Radiodiagnosis
• Medical College, Kozhikode

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• Principle Hounsfield the internal structure
  of an object can be reconstructed from multiple
  projections of the object

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Hounsfields Scale
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NORMAL
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IndicationsCongenital anomalies Cranio
cerebral traumaCerebral vascular
anomalies/strokeInfectious diseases/bone
lesionsPrimary and secondary brain tumors.White
matter disorders orbit/PNS lesions
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Congenital anomalieshydrocephalus/aqueduct
stenosishydranencephaly, holoprosencephaly
chiari malformations, c.c agenesis cysts
porencephaly, dandy walker, arachnoid
phakomatosis tuberous sclerosis
sturge weber syndrome microcephaly
macrocephaly encephalocele meningocele
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HYDROCEPHALUS
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Tuberous Sclerosis
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Sturge Weber
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Craniocerebral Trauma , extradural hemorrhage
sub dural, SAH, intra cerebral,
ventricular contusion edema
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DEPRESSED FRACTURE
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Pneumocephalus
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Extra dural haemorrhage
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SUBDURAL HEMATOMA
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Subdural c/c
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Vascular lesions IC haematoma SAH aneurysms
AVM Infarcts
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Intracerebral ventricular hemorrhage
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S.A.H
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M.C.A INFARCT
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M.C.A ANEURYSM
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Neoplasmas glioma meningoma CPCPP
meduloblastoma pituitary trs acoustic neuroma
metastases lymphoma
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glioma
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MENINGIOMA
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ACOUSTIC NEUROMA
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MEDULLOBLASTOMA
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Infections meningitis- pyo, TB
cerebritis abscess ependymitis parasitic
fungal viral
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OPTIC NERVE MENINGIOMA
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RETINO BLASTOMA

• Calcification

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SINO NASAL POLYPOSIS
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Indications chest non neoplastic/ neoplastic
parenchymal lung disease, mediastinal disease,
pleural/chest wall,heart lesions
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BRONCHOGENIC CARCINOMA
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HAMARTOMA-Rt HILUM
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EXTRA PLEURAL LESION
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ASPERGILLOMA
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THYMOMA
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Bronchiectasis
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Indications AbdomenGIT,hepatic
masses,diffuse lesions,GB, BTPancreas Spleen
adrenal kidney,peritonium, mesentery
retroperitonium prostate, uterus ovaries
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Hepatoma
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POLY CYSTIC LIVER DISEASE
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Liv met
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POLYCYSTIC KIDNEYS
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3 D images of facial bone and spine
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Thank You