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DR.RAVICHANDRA.G. Prof . Dept of Radio Diagnosis

CLINICAL MRI. DR.RAVICHANDRA.G. Prof . Dept of Radio Diagnosis. Clinical MRI. Over the past 15 years, MRI has emerged as an important imaging technology for the following areas; Brain Spine Musculoskeletal Vascular. Clinical MRI.

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DR.RAVICHANDRA.G. Prof . Dept of Radio Diagnosis

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  1. CLINICAL MRI DR.RAVICHANDRA.G. Prof . Dept of Radio Diagnosis

  2. Clinical MRI • Over the past 15 years, MRI has emerged as an important imaging technology for the following areas; • Brain • Spine • Musculoskeletal • Vascular

  3. Clinical MRI • The last few years have also seen MR begin to add important information for; • Mediastinum • Liver • Biliary • Pelvis

  4. Clinical MRI “Brain Imaging” • MRI is commonly used in the brain for assessment of; - Ischemia • White Matter Disease • Primary & Metastatic Brain Tumour • Cranial Nerves

  5. CEREBRAL ISCHEMIA AND INFARCTION • Symptomatology of stroke has three main etiologies – • Cerebral infarction • Intraparenchymal hemorrhage • Subarachnoid hemorrhage.

  6. Clinical MRI “Brain Imaging” • Sagittal images demonstrating normal anatomy. T2- sag T1-sag

  7. Normal axial images T2 T1

  8. Clinical MRI “Brain Imaging” • T2 Weighted Coronal image demonstrating normal 7th & 8th Nerve anatomy

  9. Acute Left MCA Territory Infarct T2 W FLAIR DIFUSION WEIGHTED EPI

  10. Lat. medullary infarct

  11. Acute Infarct-PICA Territory T1-axial T2-axial T1-sag T2-sag Flair coronal

  12. ACUTE BLEED

  13. Clinical MRI “Vascular Imaging” • MRI is commonly used in the Vascular Tree for assessment of; • Vessel Patency • Aneurysmal Disease • Collateral Vessel Assessment • AV Malformation

  14. Clinical MRI “Vascular Imaging” • TOF Angiogram demonstrating the Circle of Willis and peripheral branch vessels

  15. ACUTE LEFT MCA INFARCT-REDUCED CALIBRE AND MAGNITUDE OF FLOW IN LEFT MCA

  16. A V M T2 AXIAL PD AXIAL GRE AXIAL FLAIR COR

  17. 3D PC SHOWING AVM

  18. ANEURYSM AT LEFT MCA

  19. SACCULAR ANEURYSM

  20. VENOGRAM

  21. WHITE MATTER DISEASEVisualization of disorders of the cerebral white matter is unquestionably one of the major areas in neurological disease where MR imaging has become the standard and in many instances ,the only acceptable imaging modality.

  22. LEUCKO MALACIA T2-axial FLAIR CORONAL

  23. BRAIN TUMORS • MR Imaging is more sensitive for brain tumors than CT, both in terms of detection and in showing more completely the extent of the tumor. This increase in sensitivity applies to metastatic disease.

  24. THALAMIC GLIOMA T2WI T1WI FLAIR COR CONTRAST ENHANCED T1WI

  25. METASTASIS P L A I N C O N T R A S T

  26. Schwannoma Clinical MRI “Brain Imaging” • T2 Weighted Axial image demonstrating CP Angle Mass Normal 7th & 8Th Nerves Normal 7th & 8Th Nerves

  27. Acoustic Schwannoma T2-axial T1-axial Plain study Contrast enhanced T1WI

  28. MENINGIOMA T2 AXIAL LESION

  29. MENINGIOMA Ctd…. POST CONTRAST

  30. PITUITORY ADENOMA(PLAIN) T1-AXIAL ADENOMA FLAIR CORONAL T1-SAG

  31. CONTRAST STUDY WITH Gd T1-AXIAL T1-SAG T1-CORONAL

  32. Craniopharyngioma Clinical MRI “Brain Imaging” • T1 Weighted Contrast Enhanced Sagittal image demonstrating a Craniopharyngioma

  33. OPTIC NEURITIS

  34. CYSTICERCOSIS T1-axial T2-axial Flair coronal Plain study Edema Contrast study T1 images Lesion enhancing with Gd

  35. Clinical MRI “Spine Imaging” • MRI is commonly used in the spine for assessment of; • Disk Disease • Cord Disease • Vertebral Body Integrity

  36. Clinical MRI “Spine Imaging” • T2 Weighted Sagittal image demonstrating normal cord And vertebral anatomy

  37. Clinical MRI “Spine Imaging” • T2 Weighted Axial images demonstrating normal anatomy

  38. Clinical MRI “Spine Imaging” • T2 Weighted Axial images demonstrating normal Cauda Equina Nerve Root anatomy

  39. Clinical MRI “Spine Imaging” T2W - Sag Disc extrusion Disc protrusion Disc bulge

  40. SPINAL TRAUMA • The greatest impact that MR has made in the evaluation of spinal trauma has been in the assessment of – • Osseous injury • Ligamentous & joint disruption, • Disc injury, • Cord injury, • Epidural hematoma • Vascular injury

  41. SPINE TRAUMA T1-Sag T2-Sag FAST IR

  42. T2-SAG T1 SAG • TRAUMATIC DISC • HERNIATION • EPI DURAL HEMATOMA • CORD EDEMA / • CONTUSION

  43. SCIWORASPINAL CHORD INJUJY WITH OUT RADIOGRAPHIC ABNORMALITY. T2 WEIGHTED SAG

  44. Spine - Koch’s I R T2WI T1WI

  45. Koch’s Contd…. T2-axial T1-axial

  46. EPIDURAL ABSCESS T1 -SAG T2-SAG T1-SAG PLAIN STUDY CONTRAST SUDY

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