MRI of the Thoracic Spine: Axial T1 wtd.images.
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MRI of the Thoracic Spine: Axial T1 wtd.images. A : Yellow arrow: Thoracic cord Long white arrow: Cerebrospinal fluid space Orange arrow: Costotransverse joint Green arrow: Pedicle White arrowhead: Transverse process. T11 Body. Rib. A. B: - PowerPoint PPT Presentation
Transcript of MRI of the Thoracic Spine: Axial T1 wtd.images.
MRI of the Thoracic Spine: Axial T1 wtd.images.
Rib
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T11 Body
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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
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 .
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.
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
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
T1
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Anatomy of Brain By Magnetic Resonance
Imaging (MRI)
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Fig. 1.10 A midline Post-contrast Sagittal T1 Weighted MRI
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Identify anatomical structures 1 - 24
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Fig. 1.10 A midline Post-contrast Sagittal t1 Weighted MRI
Identify the brain structures in the following post-contrast axial MR
images (Fig 1.1 to Fig 1.9) marked 1 through 45
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
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
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
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
Fig. 1.5 Post Contrast Axial MR Image of the brain
Post Contrast sagittal T1 Wtd M.R.I.
Section at the level of theIII Ventricle
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
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
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
Fig. 1.9 Post Contrast Axial MR Image of the brain
Post Contrast sagittal T1 Wtd M.R.I.
Section above the Corpus Callosum
Identify the brain structures in the following post-contrast axial MR
images (Fig 1.1 to Fig 1.9) marked 1 through 45
Fig. 1.11. Coronal Section of the Brain at the level of IV Ventricle
Post Contrast Coronal T1 Weighted MRI
Fig. 1.12. Coronal Section of the Brain at the level of Pituitary glandPost Contrast Coronal T1 Weighted MRI
Fig. 1.13. Coronal Section of the Brain at the level of the orbits.Post Contrast Coronal T1 Weighted MRI.
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Fig. 1.10 A midline Post-contrast Sagittal T1 Weighted MRI
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1. Scalp fat2. Bone3. Inferior sagittal sinus4. Corpus callosum5. Internal cerebral vein6. Vein of Galen7. Superior sagittal sinus8. Parietal lobe9. Occipital lobe10. Straight sinus11. Vermis12. IV ventricle13. Cerebellar tonsil14. Cervical cord15. Medulla16. Pons17. Midbrain18. Mass intermedia of thalamus19. Anterior III ventricle 20. Optic chiasm21. Pituitary gland22. Sphenoid sinus23. Nasopharynx24. Frontal lobe
Fig. 1.11. Coronal Section of the Brain at the level of IV Ventricle
Post Contrast Coronal T1 Weighted MRI
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Fig. 1.11. Coronal Section of the Brain at the level of IV Ventricle
Post Contrast Coronal T1 Weighted MRI
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11. Cerebellar tonsil2. Cerebellar hemisphere3. IV ventricle4. Superior vermis5. Tentorium6. Posterior temporal lobe7. Choroid plexus within lateral ventricle8. Posterior frontal lobe
Fig. 1.12. Coronal Section of the Brain at the level of Pituitary glandPost Contrast Coronal T1 Weighted MRI
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Fig. 1.12. Coronal Section of the Brain at the level of Pituitary glandPost Contrast Coronal T1 Weighted MRI
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1. Frontal lobe2. Corpus callosum3. Frontal horn4. Caudate nucleus5. III ventricle6. Optic nerve7. Pituitary stalk8. Pituitary gland9. Internal carotid artery10. Cavernous sinus11. Sphenoid sinus12. Nasopharynx
Fig. 1.13. Coronal Section of the Brain at the level of the orbits.Post Contrast Coronal T1 Weighted MRI.
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Fig. 1.13. Coronal Section of the Brain at the level of the orbits.Post Contrast Coronal T1 Weighted MRI.
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1. Frontal lobe
2. Orbital Fat
3. Globe
4. Nasal Cavity
5. Maxillary Sinus
Identify the brain structures in the following post-contrast axial MR
images (Fig 1.1 to Fig 1.9) marked 1 through 45
Fig. 1.1 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Weighted M.R.I.
Section at the level of Foramen Magnum
Answers1. Cisterna Magna
2. Cervical Cord
3. Nasopharynx
4. Mandible
5. Maxillary Sinus
Fig. 1.2 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Wtd M.R.I.
Section at the level of medulla
Answers
6. Medulla
7. Sigmoid Sinus
Fig. 1.3 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Wtd M.R.I.
Section at the level of Pons
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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
Fig. 1.4 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Wtd M.R.I.
Section at the level of Mid Brain
Answers18. Aqueduct of Sylvius
19. Midbrain
20. Orbits
21. Posterior Cerebral Artery
22. Middle Cerebral Artery
Fig. 1.5 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Wtd M.R.I.
Section at the level of theIII Ventricle
Answers23. Occipital Lobe
24. III Ventricle
25. Frontal Lobe
26. Temporal Lobe
27. Sylvian Fissure
Fig. 1.6 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Wtd M.R.I.
Section at the level of Thalamus
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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
Fig. 1.7 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Wtd M.R.I.
Section at the level of Corpus Callosum
Answers39. Splenium of corpus callosum
40. Choroid plexus within the
body of lateral ventricle
41. Genu of corpus callosum
Fig. 1.8 Post Contrast Axial MR Image of the brain
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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
Fig. 1.9 Post Contrast Axial MR Image of the brain
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Post Contrast sagittal T1 Wtd M.R.I.
Section above the Corpus Callosum
Answers
45. Parietal Lobe
46. Frontal Lobe
