1. CT BRAIN - BASICS D.SUBBURAJ PROF.G .ELANGOVAN’S UNIT

2. CT Principle FOURTH GENERATION RING OF XRAY DETECTORS X ray gun

5. air --- 1000 fat ---70 Pure water 0 Csf +8 White matter +30 Gray matter +45 blood +70 Bone/calcification +1000

8. LV FRONTAL HORN TEMBORAL HORN OCCIPITAL HORN FORAMEN OF MONRO 4 V AQUEDUCT OF SYLVIUS 3V trigone

9. COMMON SECTIONS AXIAL SECTIONS CORONAL SECTIONS SAGITTAL SECTIONS POSTERIOR FOSSA CUTS - ABOVE THE FORAMEN MAGNUM LEVEL -LEVEL OF THE FOURTH VENTRICLE -ABOVE THE FOURTH VENTRICULAR LEVEL - TENTORIAL SUPRATENTORIAL CUTS - THIRD VENTRICULAR LEVEL -LOW VENTRICULAR LEVEL -ABOVE THE VENTRICULAR LEVEL -FRONTAL HORN LEVEL -THIRD VENTRICULAR LEVEL -MID VENTRICULAR LEVEL -OCCIPITAL HORN LEVEL -MID SAGITTAL LEVEL -PARASAGITTAL LEVEL THROUGH THE LATERAL VENTRICULAR BODY -LATERAL ORBITAL LEVEL

10. ABOVE THE LEVEL OF FORAMEN MAGNUM VA MEDULLA TONSIL 4 V CM INT OCC PROT

11. LEVEL OF FOURTH VENTRICLE MCP CPCISTERN PONS 4V TEM HORN Optic nerve

12. LEVEL ABOVE FOURTH VENTRICLE SUPRA SELLAR CISTERN MB AMB CIST SYLV FISSURE 4V OLF SULCUS vermis

13. THIRD VENTRICULAR LEVEL 3 V Foramen of monro SUPRA CEREBELLAR CISTERN VERMIS INSULA TRIGONE

14. LOW VENTRICULAR LAT VEN 3 V HEAD OF CAUDATE THALAMUS LENTIFORM NUCLEUS INSULAR RIBBON

15. Above ventricle level

18. MCA ACA PCA

21. Water shed infarct

22. CEREBRAL ISCHEMIA

29. Dense mca sign

30. ‘ loss of insular ribbon’ Left

31. M C A DOT SIGN

32. ATTENUATION OF LENTICULAR NUCLEUS Left side

39. PCA INFARCT

40. MCA INFARCT

41. ACA INFARCT

42. WATERSHED INFARCT

43. Old infarct

44. H’gic infarct

45. Thank u