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MRI of the Thoracic Spine: Axial T1 wtd.images. Rib B T11 Body A T11-T12 Disc A : Yellow arrow: Thoracic cord Long white arrow: Cerebrospinal fluid space.

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Presentation on theme: "MRI of the Thoracic Spine: Axial T1 wtd.images. Rib B T11 Body A T11-T12 Disc A : Yellow arrow: Thoracic cord Long white arrow: Cerebrospinal fluid space."— Presentation transcript:

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2 MRI of the Thoracic Spine: Axial T1 wtd.images. Rib B T11 Body A T11-T12 Disc A : Yellow arrow: Thoracic cord Long white arrow: Cerebrospinal fluid space Orange arrow: Costotransverse joint Green arrow: Pedicle White arrowhead: Transverse process B: White arrow: Neural foramina with exiting nerve root Yellow arrow: Facet joint Red arrow: Spinous process Green arrow : Lamina Orange arrow: Thoracic Aorta

3 Axial T2 wtd. MRI of the cervical spine at C5-C6 level C5-C6 DISC Yellow arrow : Bright T2 wtd. CSF signal surrounds the cervical cord. Red arrow : Cervical cord. Blue arrow : Left C6 nerve root exits out of the spinal canal through C5-C6 neural foramina. White arrow : Vertebral artery.

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5 MRI of the Thoracic Spine : Sagittal T2 wtd. Image White arrow: Degenerative disc disease at T7-T8 level. Yellow arrow : Normal thoracic cord is seen surrounded by bright cerebrospinal fluid(C.S.F) signal on T2 wtd. pulse sequence, which is the sequence of choice to evaluate spinal cord pathology.

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7 MRI cervical spine : Sagittal T2wtd. fat suppressed Image. C.S.F signal is bright ( yellow arrow ) on T2 wtd. Image ( dark on T1 wtd. Image ). Cerebro spinal fluid surrounds the spinal cord. Subcutaneous fat signal is suppressed and appears dark on fat suppressed image( green arrow ) whereas fat signal is bright on T1 wtd. Image. Red arrow points to cervical cord. C2 C5 T1

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9 MRI OF CERVICAL SPINE : Sagittal projection T1 wtd. Image : CSF is dark ( yellow arrow ) surrounding the thoracic cord ( red arrow ) FAT is bright ( green arrow ) on T1 wtd. Image. 1.Anterior arch of C1 2.Odontoid process of C2 3.C2 vertebral body 4.C5-C6 disk space 5.Posterior arch of C1 6.Cervical cord 7.C7 spinous process C5 T

10 Anatomy of Brain By Magnetic Resonance Imaging (MRI)

11 1 Fig A midline Post-contrast Sagittal T 1 Weighted MRI Identify anatomical structures

12 3 Fig A midline Post-contrast Sagittal t1 Weighted MRI

13 Identify the brain structures in the following post-contrast axial MR images (Fig 1.1 to Fig 1.9) marked 1 through 45

14 Fig. 1.1 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Weighted M.R.I. Section at the level of Foramen Magnum

15 Fig. 1.2 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of medulla

16 Fig. 1.3 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Pons

17 Fig. 1.4 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Mid Brain

18 Fig. 1.5 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of the III Ventricle

19 Fig. 1.6 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Thalamus

20 Fig. 1.7 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Corpus Callosum

21 Fig. 1.8 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Body of Corpus Callosum

22 Fig. 1.9 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section above the Corpus Callosum

23 Identify the brain structures in the following post-contrast axial MR images (Fig 1.1 to Fig 1.9) marked 1 through 45

24 Fig Coronal Section of the Brain at the level of IV Ventricle Post Contrast Coronal T1 Weighted MRI

25 Fig Coronal Section of the Brain at the level of Pituitary gland Post Contrast Coronal T1 Weighted MRI

26 Fig Coronal Section of the Brain at the level of the orbits. Post Contrast Coronal T1 Weighted MRI.

27 1 Fig A midline Post-contrast Sagittal T 1 Weighted MRI Scalp fat 2. Bone 3. Inferior sagittal sinus 4. Corpus callosum 5. Internal cerebral vein 6. Vein of Galen 7. Superior sagittal sinus 8. Parietal lobe 9. Occipital lobe 10. Straight sinus 11. Vermis 12. IV ventricle 13. Cerebellar tonsil 14. Cervical cord 15. Medulla 16. Pons 17. Midbrain 18. Mass intermedia of thalamus 19. Anterior III ventricle 20. Optic chiasm 21. Pituitary gland 22. Sphenoid sinus 23. Nasopharynx 24. Frontal lobe

28 Fig Coronal Section of the Brain at the level of IV Ventricle Post Contrast Coronal T1 Weighted MRI Identify anatomical structures 1 - 8

29 Fig Coronal Section of the Brain at the level of IV Ventricle Post Contrast Coronal T1 Weighted MRI Cerebellar tonsil 2. Cerebellar hemisphere 3. IV ventricle 4. Superior vermis 5. Tentorium 6. Posterior temporal lobe 7. Choroid plexus within lateral ventricle 8. Posterior frontal lobe

30 Fig Coronal Section of the Brain at the level of Pituitary gland Post Contrast Coronal T1 Weighted MRI Identify anatomical structures

31 Fig Coronal Section of the Brain at the level of Pituitary gland Post Contrast Coronal T1 Weighted MRI Frontal lobe 2. Corpus callosum 3. Frontal horn 4. Caudate nucleus 5. III ventricle 6. Optic nerve 7. Pituitary stalk 8. Pituitary gland 9. Internal carotid artery 10. Cavernous sinus 11. Sphenoid sinus 12. Nasopharynx

32 Fig Coronal Section of the Brain at the level of the orbits. Post Contrast Coronal T1 Weighted MRI Identify anatomical structures 1 - 5

33 Fig Coronal Section of the Brain at the level of the orbits. Post Contrast Coronal T1 Weighted MRI Frontal lobe 2. Orbital Fat 3. Globe 4. Nasal Cavity 5. Maxillary Sinus

34 Identify the brain structures in the following post-contrast axial MR images (Fig 1.1 to Fig 1.9) marked 1 through 45

35 Fig. 1.1 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Weighted M.R.I. Section at the level of Foramen Magnum Answers 1. Cisterna Magna 2. Cervical Cord 3. Nasopharynx 4. Mandible 5. Maxillary Sinus

36 Fig. 1.2 Post Contrast Axial MR Image of the brain 7 6 Post Contrast sagittal T1 Wtd M.R.I. Section at the level of medulla Answers 6. Medulla 7. Sigmoid Sinus

37 Fig. 1.3 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Pons Answers 8. Cerebellar Hemisphere 9. Vermis 10. IV Ventricle 11. Pons 12. Basilar Artery 13. Internal Carotid Artery 14. Cavernous Sinus 15. Middle Cerebellar Peduncle 16. Internal Auditory Canal 17. Temporal Lobe

38 Fig. 1.4 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Mid Brain Answers 18. Aqueduct of Sylvius 19. Midbrain 20. Orbits 21. Posterior Cerebral Artery 22. Middle Cerebral Artery

39 Fig. 1.5 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of the III Ventricle Answers 23. Occipital Lobe 24. III Ventricle 25. Frontal Lobe 26. Temporal Lobe 27. Sylvian Fissure

40 Fig. 1.6 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Thalamus Answers 28. Superior Sagittal Sinus 29. Occipital Lobe 30. Choroid Plexus within the occipital horn 31. Internal Cerebral Vein 32. Frontal Horn 33. Thalamus 34. Temporal Lobe 35. Internal Capsule 36. Putamen 37. Caudate Nucleus 38. Frontal Lobe

41 Fig. 1.7 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Corpus Callosum Answers 39. Splenium of corpus callosum 40. Choroid plexus within the body of lateral ventricle 41. Genu of corpus callosum

42 Fig. 1.8 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section at the level of Body of Corpus Callosum Answers 42. Parietal Lobe 43. Body of the Corpus Callosum 44. Frontal Lobe

43 Fig. 1.9 Post Contrast Axial MR Image of the brain Post Contrast sagittal T1 Wtd M.R.I. Section above the Corpus Callosum Answers 45. Parietal Lobe 46. Frontal Lobe


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