Training Collections
Library Memberships
Sale 25% OffOn-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Sale 25% OffPractice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Sale 30% OffUnlock access to our full Course Library and all self-paced Fellowships.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
For Training Programs
Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
Training Collections
Library Memberships
Sale 25% OffOn-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Sale 25% OffPractice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Sale 30% OffUnlock access to our full Course Library and all self-paced Fellowships.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
For Training Programs
Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
1 topic, 2 min.
24 topics, 2 hr. 9 min.
Clinical Scenario 1: New Neurologic Deficit Introduction
3 m.Case: Left MCA Stroke on Non-Contrast CT
5 m.Case: Left MCA Stroke on CTA
13 m.Case: Left MCA Stroke on MRI
9 m.Non-Contrast Findings in CT and Stroke
7 m.ASPECTS Score
4 m.Perfusion Evaluation
7 m.Timing of Therapy for Stroke
6 m.Case: Occluded Right MCA
11 m.Case: Acute Left MCA Infarct with Penumbra
12 m.Case: RAPID Analysis
4 m.Case: Right M1 Occlusion on MRI
9 m.Case: Old and New Strokes: Cardioembolic Phenomenon
7 m.Case: Basilar Artery Clot on CTA, CT, CTP
8 m.Case: Childhood Stroke on MRI, MRA, MRP
7 m.Case: Moyamoya Syndrome
4 m.Case: Childhood Stroke, Moyamoya on CT
4 m.Case: Superior Sagittal Sinus Thrombosison CT, CTV
4 m.Case: Imaging of Sinus Thrombosis
6 m.Case: Cortical Vein Thrombosis on CT, MRI, MRV
4 m.Case: Cortical Vein Thrombosis on CTV
3 m.Case: New Neurologic Deficit from Multiple Sclerosis
2 m.Case: Glioblastoma
3 m.New Neurologic Deficit Lesson Reinforcement Quiz
29 topics, 1 hr. 40 min.
Clinical Scenario 2: Head Trauma Introduction
3 m.Case: Head Trauma wtih Multicompartmental Hemorrhage
6 m.Case: SDH with Active Bleeding
4 m.Traumatic Brain Injury
7 m.Cortical Contusions
7 m.Extra-Axial Collections
3 m.Case: Subdural Hematoma on CT
2 m.Case: Epidural Hematoma on CT
3 m.Case: Epidural Hematoma from Transverse Sinus Injury on CT
3 m.Case: Epidural Hematoma from Transverse Sinus Injury, Prognosis on CT
2 m.Acute Epidural Hematomas
2 m.Epidural Hematomas, Continued
2 m.Case: Isodense Subdural Hematoma
4 m.Acute Subdural Hematomas & Diffuse Axonal Injury
10 m.Density of Falx/Tentorium
6 m.Depressed Skull Fractures
4 m.Case: Occipital Bone Open/Depressed Fracture on CT
3 m.Role of MRI in Head Trauma
3 m.Case: Non-Accidental Trauma
6 m.Non-Accidental Trauma CT (Part 1)
3 m.Non-Accidental Trauma CT (Part 2)
2 m.Posterior Fossa Lesions from Trauma
3 m.Case: DAI on MRI
7 m.Case: DAI on CT
3 m.Diffuse Axonal Injury
3 m.Case: DAI with Blood Products on CT
3 m.Traumatic Injuries: Herniation
6 m.Case: Herniations on CT
4 m.Head Trauma Lesson Reinforcement Quiz
19 topics, 1 hr. 24 min.
Clinical Scenario 3: Worst Headache of Life Introduction
2 m.Case: Ruptured PCA Aneurysm Leading to IPH on CT, Arteriogram
5 m.Case 26: Basilar Artery Aneurysm on CT, CTA
7 m.Localization of Aneurysm with SAH
3 m.Imaging of Aneurysms
9 m.Case: Mycotic Aneurysm on CT, CTA
4 m.Case 28: Non-Infectious Mycotic Aneurysm on CT
4 m.Arteriovenous Malformation
5 m.Case: Hypertensive Bleed, IPH with IVH on CT (Case 1)
4 m.Case: Hypertensive Bleed, IPH with IVH on CT (Case 2)
3 m.Signal Intensity of IPH on MRI by Age
12 m.Reversible Cerebral Vasoconstriction Syndrome (RCVS)
4 m.Non-Aneurysmal Perimesencephalic SAH
4 m.Cerebral Amyloid Angiopathy
4 m.Case: Idiopathic Intracranial Hypertension on CTA, CTV
5 m.Idiopathic Intracranial Hypertension (IIH)
6 m.Case: Intracranial Hypotension on MRI
6 m.Case: Intracranial Hypotension - Spinal Imaging on MRI
5 m.Worst Headache of Life Lesson Reinforcement Quiz
16 topics, 41 min.
Clinical Scenario 4: Found Down Introduction
2 m.Case: Anoxic Brain Injury
3 m.Metabolic Brain Disease
5 m.Case: Hyperammonemia on MRI
3 m.Case: Thiamine Deficiency on MRI
5 m.Thiamine Deficiency
3 m.Posterior reversible encephalopathy syndrome (PRES)
5 m.Case: PRES: MRI
3 m.PRES Variants
2 m.Cytotoxic Lesions of the Corpus Callosum (CLOCC)
2 m.Case: CLOCC from Seizure Medication on MRI
2 m.Case: Toxic Leukoencephalopathy on MRI
3 m.Case: Toxic Leukoencephalopathy from Medication on MRI
2 m.Toxic Leukoencephalopathy
3 m.Case: Hypoxic Ischemic Encephalopathy
6 m.Found Down Lesson Reinforcement Quiz
9 topics, 26 min.
Clinical Scenario 5: Fever and Seizure Introduction
2 m.Case: Herpes Encephalitis on MRI
6 m.Case: Herpes Encephalitis in a Lung Cancer Patient on MRI
3 m.Case: Listeria Rhombencephalitis on MRI
4 m.Status Epelipticus, CJD, and Encephalitis
4 m.Case: Abscess on MRI (Case 1)
4 m.Case: Abscess on MRI (Case 2)
3 m.Case 37 - Subacute BE with ventriculitis and sceptic emboli
4 m.Fever & Seizures Lesson Reinforcement Quiz
4 topics, 14 min.
0:00
Okay.
0:01
One of the most common scenarios that
0:03
you'll have in the emergency department is
0:07
a patient who has a new neurologic deficit.
0:10
And these may be secondary to transient ischemic
0:13
attacks or TIAs, or it may be secondary to
0:16
strokes, and that's gonna be the first scenario
0:19
that we're gonna deal with in this course.
0:22
What other clinical scenarios might
0:24
you see this under the same category?
0:27
Well, for example, new aphasia.
0:29
For most patients when you have new aphasia,
0:32
we're talking about a left middle cerebral artery
0:35
distribution infarction that we're concerned about.
0:38
So it's stroke.
0:39
Same thing with new-onset hemiparesis.
0:41
Now that might be left or right side, and that would
0:44
involve obviously the motor strip, which again is
0:47
within the middle cerebral artery distribution,
0:49
and we're concerned about a stroke facial droop.
0:53
Maybe a manifestation of a large vessel
0:56
occlusion, LVO, large vessel occlusion.
1:00
But it may also be found in patients who have
1:03
brainstem strokes, or it may even be found in patients
1:07
who have Bell's palsy, which is not a stroke,
1:11
but a viral illness affecting the facial nerve,
1:15
vertigo and dizziness, another neurologic deficit.
1:18
These patients, there's just so
1:19
many causes of patients to be dizzy.
1:22
But one of them is a vertebral
1:24
basilar artery infarction or ischemia.
1:27
And therefore, we do see those patients in the new
1:31
neurologic deficit, visual field loss, a lot less common.
1:36
That's usually a posterior cerebral artery
1:39
distribution infarction affecting the occipital lobes.
1:42
Or it could be something that's compressing, for
1:44
example, the optic chiasm, but sometimes it's just,
1:48
you know, my elderly father who is in the nursing home.
1:52
Or my elderly mother who is in the assisted
1:54
care facility is just not acting right.
1:57
And this is a new neurologic finding.
2:00
So these are the scenarios that you will see.
2:03
The other thing that you will see this
2:04
under is something called BAT.
2:08
Which is the brain attack team.
2:11
So this is a patient who has a suspected
2:15
acute stroke for which everything is very rushed.
2:17
You have to go and, and, and image the patient
2:20
as quickly as possible because they may be
2:22
having an acute or hyperacute stroke, the
2:25
so-called BAT team, brain attack team evaluation.
2:29
So what we're going to do now is I'm going to
2:31
ask you to review some of the unknown cases.
2:36
That are full DICOM series and then afterwards I will
2:41
review them and we can compare your interpretation
2:44
of the studies from my interpretation of the studies.
2:47
We'll see who gets it right.
Interactive Transcript
0:00
Okay.
0:01
One of the most common scenarios that
0:03
you'll have in the emergency department is
0:07
a patient who has a new neurologic deficit.
0:10
And these may be secondary to transient ischemic
0:13
attacks or TIAs, or it may be secondary to
0:16
strokes, and that's gonna be the first scenario
0:19
that we're gonna deal with in this course.
0:22
What other clinical scenarios might
0:24
you see this under the same category?
0:27
Well, for example, new aphasia.
0:29
For most patients when you have new aphasia,
0:32
we're talking about a left middle cerebral artery
0:35
distribution infarction that we're concerned about.
0:38
So it's stroke.
0:39
Same thing with new-onset hemiparesis.
0:41
Now that might be left or right side, and that would
0:44
involve obviously the motor strip, which again is
0:47
within the middle cerebral artery distribution,
0:49
and we're concerned about a stroke facial droop.
0:53
Maybe a manifestation of a large vessel
0:56
occlusion, LVO, large vessel occlusion.
1:00
But it may also be found in patients who have
1:03
brainstem strokes, or it may even be found in patients
1:07
who have Bell's palsy, which is not a stroke,
1:11
but a viral illness affecting the facial nerve,
1:15
vertigo and dizziness, another neurologic deficit.
1:18
These patients, there's just so
1:19
many causes of patients to be dizzy.
1:22
But one of them is a vertebral
1:24
basilar artery infarction or ischemia.
1:27
And therefore, we do see those patients in the new
1:31
neurologic deficit, visual field loss, a lot less common.
1:36
That's usually a posterior cerebral artery
1:39
distribution infarction affecting the occipital lobes.
1:42
Or it could be something that's compressing, for
1:44
example, the optic chiasm, but sometimes it's just,
1:48
you know, my elderly father who is in the nursing home.
1:52
Or my elderly mother who is in the assisted
1:54
care facility is just not acting right.
1:57
And this is a new neurologic finding.
2:00
So these are the scenarios that you will see.
2:03
The other thing that you will see this
2:04
under is something called BAT.
2:08
Which is the brain attack team.
2:11
So this is a patient who has a suspected
2:15
acute stroke for which everything is very rushed.
2:17
You have to go and, and, and image the patient
2:20
as quickly as possible because they may be
2:22
having an acute or hyperacute stroke, the
2:25
so-called BAT team, brain attack team evaluation.
2:29
So what we're going to do now is I'm going to
2:31
ask you to review some of the unknown cases.
2:36
That are full DICOM series and then afterwards I will
2:41
review them and we can compare your interpretation
2:44
of the studies from my interpretation of the studies.
2:47
We'll see who gets it right.
Report
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Tags
Vascular
Neuroradiology
Emergency
Brain
© 2025 Medality. All Rights Reserved.