Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

20
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
20
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

30
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
30
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

650
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
650
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

589
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
589
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

478
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
478
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

19
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this...
19

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Radiation-induced brain injury in patients with meningioma treated with proton or photon therapy.

Journal of neuro-oncology·2021
Same author

Spontaneous bilateral orbital subperiosteal hemorrhage resulting from thoracoabdominal crush injury.

Emergency radiology·2021
Same author

Assessment of the Prognostic Value of Radiomic Features in <sup>18</sup>F-FMISO PET Imaging of Hypoxia in Postsurgery Brain Cancer Patients: Secondary Analysis of Imaging Data from a Single-Center Study and the Multicenter ACRIN 6684 Trial.

Tomography (Ann Arbor, Mich.)·2020
Same author

Subacute Combined Degeneration from Nitrous Oxide Abuse.

PM & R : the journal of injury, function, and rehabilitation·2020
Same author

Cerebellopontine angle meningioma presenting with hearing loss.

Radiology case reports·2016
Same author

Acute sensorineural hearing loss resulting from cerebellopontine angle arachnoid cyst.

Radiology case reports·2016

Related Experiment Video

Updated: May 4, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
10:34

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Published on: August 30, 2020

10.3K

Subarachnoid hemorrhage: beyond aneurysms.

Carrie P Marder1, Vinod Narla, James R Fink

  • 11 All authors: Department of Radiology, University of Washington, Box 357115, 1959 NE Pacific St, NW011, Seattle, WA 98195-7115.

AJR. American Journal of Roentgenology
|December 28, 2013
PubMed
Summary
This summary is machine-generated.

Spontaneous subarachnoid hemorrhage (SAH) has diverse causes beyond ruptured aneurysms. CT scan patterns help differentiate SAH types and guide further investigation for accurate diagnosis.

More Related Videos

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
09:14

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Published on: June 18, 2021

2.3K
Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging MRI
06:30

Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging MRI

Published on: December 16, 2021

3.8K

Related Experiment Videos

Last Updated: May 4, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
10:34

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Published on: August 30, 2020

10.3K
Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
09:14

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Published on: June 18, 2021

2.3K
Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging MRI
06:30

Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging MRI

Published on: December 16, 2021

3.8K

Area of Science:

  • Neurology
  • Radiology
  • Emergency Medicine

Background:

  • Spontaneous subarachnoid hemorrhage (SAH) is commonly caused by ruptured saccular aneurysms.
  • The differential diagnosis for SAH extends beyond aneurysms, especially based on clinical presentation and imaging findings.

Purpose of the Study:

  • To classify SAH patterns based on CT findings.
  • To guide differential diagnosis and subsequent imaging strategies for SAH.
  • To review conditions that mimic SAH on imaging (pseudo-SAH).

Main Methods:

  • Classification of SAH into three patterns based on unenhanced CT blood distribution: diffuse, perimesencephalic, and convexal.
  • Analysis of hemorrhage epicenter to refine differential diagnosis.
  • Review of clinical conditions causing pseudo-SAH.

Main Results:

  • SAH can be categorized into diffuse, perimesencephalic, and convexal patterns on CT.
  • Hemorrhage location is crucial for differential diagnosis and imaging guidance.
  • Pseudo-SAH, mimicking SAH on CT/MRI, is a recognized imaging artifact.

Conclusions:

  • CT-based classification of SAH patterns aids in diagnosis.
  • Understanding hemorrhage distribution and epicenter is key for effective workup.
  • Recognition of pseudo-SAH is important to avoid misdiagnosis.