Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
Lesson
Pre-Course Activities
1 topic, 3 min.
Lesson
Introduction to Stroke Imaging
4 topics, 17 min.
Lesson
Noncontrast CT
5 topics, 14 min.
Lesson
CTA Neck
10 topics, 33 min.
Vascular Imaging in Stroke - CTA vs MRA
2 m.Carotid and Vertebral Vasculopathies Overview & Examples of Atherosclerotic Disease
3 m.Case - Atheromatous Disease with Severe ICA Stenosis
4 m.Carotid & Vertebral Artery Dissection Overview & Examples
3 m.Case - Embolic Stroke with ICA Dissection
5 m.Collagen Vascular Diseases Overview - Examples of FMD, Carotid Web
2 m.Case - Fibromuscular Dysplasia (FMD)
5 m.Case - Ehlers Danlos
7 m.Inflammatory Conditions with Stroke Symptoms - Examples of Takayasu's, TIPIC
4 m.Case - Takayasu’s Arteritis
4 m.Lesson
CTA Head
9 topics, 37 min.
CTA Head in Acute Stroke - Source Images, MIPS, Collaterals
4 m.Case - MCA Stem Embolus with Good Collaterals
5 m.Case - MCA Stem Embolus with Poor Collaterals
4 m.Case - Basilar Tip Thrombus
6 m.Circle of Willis Stenoses: Differential Diagnoses
2 m.Case - Moya Moya disease
6 m.Case - Reversible Cerebral Vasoconstrictive Syndrome (RCVS)
5 m.Case - Primary Angiitis of the CNS (PACNS)
7 m.Infectious Causes of Multifocal Circle of Willis Stenosis
2 m.Lesson
CT Perfusion
3 topics, 15 min.
Lesson
MRI (DWI, FLAIR, SWI) of Acute Stroke
3 topics, 14 min.
Lesson
MRA of Head and Neck
6 topics, 18 min.
Lesson
Multifocal Strokes With No Visualized Vascular Abnormality
6 topics, 26 min.
Lesson
Brain Ischemia, Hypoxia, & Death
6 topics, 16 min.
Lesson
Stroke Mimics & Other Causes of Restricted Diffusion
7 topics, 18 min.
Stroke Mimics - Other Causes of Restricted Diffusion
2 m.Case - Seizure (Stroke Mimic)
4 m.Case - MELAS (Stroke Mimic)
3 m.Case - Hypoglycemia (Stroke Mimic)
3 m.Case - Herpes Virus Encephalitis (Stroke Mimic)
4 m.Case - Osmotic Demyelination Syndrome (Stroke Mimic)
3 m.Case - Brain Metastases (Stroke Mimic)
4 m.Lesson
MR Perfusion
8 topics, 17 min.
MR Perfusion - Data, Maps and Uses
4 m.Case - MR Perfusion Target Mismatch (Good Collaterals)
2 m.Case - MR Perfusion Target Mismatch (Poor Collaterals)
3 m.Case - Ischemia Detected Only on MR Perfusion (Case 1)
2 m.Case - Ischemia Detected Only on MR Perfusion (Case 2)
3 m.Arterial Spin Labelling Perfusion - Usage Examples
3 m.Case - ASL Matched Defect
2 m.Case - ASL Showing Tissue at Risk
2 m.Lesson
Subacute Stroke & Differentials
5 topics, 13 min.
0:00
These are images demonstrating global hypoxia.
0:04
These are images of a 53 year old
0:06
male, status post cardiac arrest,
0:09
who was minimally responsive.
0:11
These are the diffusion weighted images
0:13
and the ADC maps, and you can see there's
0:16
diffusion restriction characterized
0:17
by hyper intensity on the DWI and hypo
0:20
intensity on the ADC maps in the cerebellum
0:24
and throughout the cerebral cortex.
0:27
And also involving the bilateral thalami,
0:30
the bilateral basal ganglia, including
0:33
the globus pallidus lentiform nucleus,
0:36
which is globus pallidus imputamen, the
0:38
caudate, and the entire cerebral cortex.
0:43
It's kind of a super scan, there's
0:45
too much gray white differentiation.
0:47
The patient had had a tumor resected
0:49
previously in the left temporal lobe.
0:52
I'm going to also show you the
0:54
T2 and flare weighted images.
0:58
Again, there's diffuse swelling
1:00
of the cerebellar cortex.
1:02
The cerebral cortex and the basal ganglia,
1:06
there's diffuse flare hyperintensity, there's
1:08
diffuse T2 hyperintensity, again, mild swelling.
1:13
Notice that the flow voids in the
1:18
internal carotid arteries and the
1:19
middle cerebral arteries and the
1:21
basilar artery are still patent.
1:24
So the prognosis is unclear
1:28
depending on age and other factors.
1:29
Some patients do not recover
1:32
and some patients do.
1:34
And you can also see these findings.
1:37
On coronal diffusion weighted images, diffusion
1:41
weighted images, ADC maps, again, showing
1:43
the same findings involvement of the entire
1:45
cerebellar and supratentorial cortex and
1:49
involvement of the thalami and basal ganglia.
1:55
The images can also be used in severe cases,
1:59
you'll see susceptibility throughout the.
2:02
Deep and superficial veins,
2:04
but we don't see that here.
Case - Global Hypoxia
HIDEInteractive Transcript
0:00
These are images demonstrating global hypoxia.
0:04
These are images of a 53 year old
0:06
male, status post cardiac arrest,
0:09
who was minimally responsive.
0:11
These are the diffusion weighted images
0:13
and the ADC maps, and you can see there's
0:16
diffusion restriction characterized
0:17
by hyper intensity on the DWI and hypo
0:20
intensity on the ADC maps in the cerebellum
0:24
and throughout the cerebral cortex.
0:27
And also involving the bilateral thalami,
0:30
the bilateral basal ganglia, including
0:33
the globus pallidus lentiform nucleus,
0:36
which is globus pallidus imputamen, the
0:38
caudate, and the entire cerebral cortex.
0:43
It's kind of a super scan, there's
0:45
too much gray white differentiation.
0:47
The patient had had a tumor resected
0:49
previously in the left temporal lobe.
0:52
I'm going to also show you the
0:54
T2 and flare weighted images.
0:58
Again, there's diffuse swelling
1:00
of the cerebellar cortex.
1:02
The cerebral cortex and the basal ganglia,
1:06
there's diffuse flare hyperintensity, there's
1:08
diffuse T2 hyperintensity, again, mild swelling.
1:13
Notice that the flow voids in the
1:18
internal carotid arteries and the
1:19
middle cerebral arteries and the
1:21
basilar artery are still patent.
1:24
So the prognosis is unclear
1:28
depending on age and other factors.
1:29
Some patients do not recover
1:32
and some patients do.
1:34
And you can also see these findings.
1:37
On coronal diffusion weighted images, diffusion
1:41
weighted images, ADC maps, again, showing
1:43
the same findings involvement of the entire
1:45
cerebellar and supratentorial cortex and
1:49
involvement of the thalami and basal ganglia.
1:55
The images can also be used in severe cases,
1:59
you'll see susceptibility throughout the.
2:02
Deep and superficial veins,
2:04
but we don't see that here.
Report
Faculty
Pamela W Schaefer, MD, FACR
Professor of Radiology, Vice Chair of Education
Massachusetts General Hospital
Tags
Vascular Imaging
Neuroradiology
Neuro
MRI
Head and Neck
Brain
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