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Oct 17, 2023 570 likes •1.42k views

Introduction to Neuroradiology Brain Imaging The basic imaging tools Fluoroscopy/Radiography Computed Tomography Magnetic Resonance Imaging Digital Substraccion Angiography (DSA) Ultrasound Nuclear Medicine Computerized

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SLIDE 1

Introduction to Neuroradiology

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SLIDE 2

The basic imaging tools

  • Fluoroscopy/Radiography
  • Computed Tomography
  • Magnetic Resonance Imaging
  • Digital Substraccion Angiography (DSA)
  • Ultrasound
  • Nuclear Medicine

Brain Imaging

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SLIDE 3

Computerized Tomography (CT)

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SLIDE 4

Computed Tomography (CT, CAT)

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SLIDE 5
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SLIDE 6

MRI Function

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SLIDE 7

MRI in the Brain

Axial Sagittal Coronal

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SLIDE 8

T1WI T2WI MAGNETIC RESONANCE IMAGING

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SLIDE 9

FLAIR DWI

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SLIDE 10

Normal MRA Coronal 3 DTOF

MR Angiography Without contrast medium

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SLIDE 11

MR Angiography With Gadolinium

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SLIDE 12

Neuroangiography

Invasive procedure requiring insertion

  • f a catheter through the femoral artery up to the carotid.

Iodinated contrast material is injected into the carotid and vertebral arteries bilaterally and sequential images are obtained.

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SLIDE 13

DIGITAL SUSTRACTION ANGIOGRAPHY

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SLIDE 14

DIGITAL SUSTRACTION ANGIOGRAPHY

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SLIDE 15
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SLIDE 16

MYELOGRAPHY MYELO-TAC MYELO-MRI

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SLIDE 17
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SLIDE 18

CEREBRAL VASCULAR EVENT

  • ISCHEMIC
  • HEMORRHAGIC
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SLIDE 19
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SLIDE 20

ACUTE INFARCT

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SLIDE 21
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SLIDE 22

CT

  • LOSS OF DEFINITION BETWEEN

GRAY AND WHITE MATTER

  • ILL DEFINITION OF INTERNAL

CAPSULE

  • HYPERDENSE MIDDLE CEREBRAL

ARTERY EARLY SIGS OF ISCHEMIC INFARCT

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SLIDE 23

HYPERDENSE MCA

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SLIDE 24
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SLIDE 25

CHRONIC INFARCT

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SLIDE 26

EARLY SIGNS OF ISCHEMIC INFARCT MRI

  • T1 HYPOINTENSITY
  • T2, FLAIR HYPERINTENSITY
  • DWI HYPERINTENSITY
  • DECREASED SIGNAL IN PERFUSION

IMAGES

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SLIDE 27

T 1 FLAIR DIFUSION

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SLIDE 28

SUBACUTE INFARCT

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SLIDE 29

LUXURY PERFUSION

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SLIDE 30

CT DWI

Hours Minutes

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SLIDE 31
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SLIDE 32

Ventricular hemorrhage and parenchymal infarct

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SLIDE 33
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SLIDE 34

CEREBRO VASCULAR EVENT

ISCHEMIC THROMBO EMBOLIC VASCULITIS DISSECTION FIBROMUSCULAR DISPLASIA VENOUS THROMBOSIS ANOXIA

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SLIDE 35

ATHEROSCLEROTIC PLAQUE

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SLIDE 36

COLOR AND PULSED DOPPLER ULTRASOUND

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SLIDE 37

B MODE ULTRASOUND

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SLIDE 38

FIBROMUSCULAR DISPLASIA

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SLIDE 39

DISSECTION

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SLIDE 40

SUBACUTE INFARCT

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SLIDE 41
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SLIDE 42

VERTEBRAL ARTERY DISSECTION

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SLIDE 43

VASCULITIS

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SLIDE 44
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SLIDE 45

SSS THROMBOSIS

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SLIDE 46

VENOUS INFARCT

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SLIDE 47

CEREBRO VASCULAR EVENT

  • HEMORRHAGIC

HYPERTENSION ANEURYSM VASCULAR MALFORMATION TRAUMA COAGULOPATHY AMYLOIDOSIS

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SLIDE 48

HYPERTENSION

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SLIDE 49

ANEURYSM

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SLIDE 50
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SLIDE 51

Cerebral Arterio Venous Malformation (AVM)

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SLIDE 52

CTA 3D RECONSTRUCTION

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SLIDE 53

TRAUMA

  • CONTUSION
  • DIFFUSE AXONAL INJURY
  • SUBDURAL HEMATOMA
  • EPIDURAL HEMATOMA
  • SUBARACHNOID HEMORRHAGE
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SLIDE 54
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SLIDE 55

EPIDURAL HEMATOMA

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SLIDE 56
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SLIDE 57
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SLIDE 58

SUBACUTE SUBDURAL HEMATOMA CHRONIC SUBDURAL HEMATOMA

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SLIDE 59

DIFFUSE AXONAL INJURY

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SLIDE 60

SEIZURE

  • CONGENITAL MALFORMATION
  • MESIAL SCLEROSIS
  • CVA
  • POSTTRAUMATIC
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SLIDE 61
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SLIDE 62
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SLIDE 63
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SLIDE 64

MESIAL SCLEROSIS

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SLIDE 65

INFLAMMATORY

  • MENINGO ENCEPHALITIS
  • ABCESS
  • TOXOPLASMOSIS
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SLIDE 66

MENINGITIS

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SLIDE 67
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SLIDE 68

NEOPLASIA

  • GLIOMAS
  • LYMPHOMA
  • MEDULOBLASTOMA
  • PINEAL TUMOR
  • PITUITARY ADENOMA
  • EXTRAAXIAL TUMORS
  • MENINGIOMA
  • SCHWANNOMA
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SLIDE 69

MEDULLOBLASTOMA

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SLIDE 70

LYMPHOMA ASTROCITOMA

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SLIDE 71

HIGH GRADE GLIOMA (GRADE III)

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SLIDE 72

MENINGIOMA

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SLIDE 73

DEMYELINATING DISEASE

  • MULTIPLE SCLEROSIS
  • ADEM
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SLIDE 74

MULTIPLE SCLEROSIS

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SLIDE 75

MULTIPLE SCLEROSIS

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SLIDE 76

MS

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OPTIC NEURITIS

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MULTIPLE SCLEROSIS

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TOXOPLASMOSIS

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Differential Diagnosis for ring-enhancing lesions: MAGICAL DR M - Metastasis, MS A - Abscess G - Glioblastoma, Granuloma I - Infarct (esp. Basal ganglia) C - Contusion (rare) A - AIDS (Toxo, etc.) L - Lymphoma (in aids) D - Demyelination (active) R - Resolving hematoma, Radiation change (necrosis)

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SLIDE 81

LYMPHOMA ABSCESS

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SLIDE 82

RESOLVING HEMATOMA