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 Experiment Videos

Ruptured cerebral aneurysms missed by initial angiographic study.

H Iwanaga1, S Wakai, C Ochiai

  • 1Department of Neurosurgery, Dokkyo University School of Medicine, Tochigi, Japan.

Neurosurgery
|July 1, 1990
PubMed
Summary

Computed tomographic (CT) scans can predict missed aneurysms in subarachnoid hemorrhage patients. Thick subarachnoid blood on CT scans increases the likelihood of detecting an aneurysm on repeat angiography.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Fetal echocardiographic prediction score for perinatal mortality in tricuspid valve dysplasia and Ebstein's anomaly.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2019
Same author

Analysis of public discourse on heart transplantation in Japan using social network service data.

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons·2017
Same author

The Contribution of Diabetes Education in the Treatment of People with Type 2 Diabetes and Risk of Cardiovascular Disease.

Current atherosclerosis reports·2016
Same author

Prenatal diagnosis of isolated atrioventricular discordance using fetal echocardiography.

Images in paediatric cardiology·2015
Same author

'Post-LA space index' as a potential novel marker for the prenatal diagnosis of isolated total anomalous pulmonary venous connection.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2014
Same author

A novel method for transcranial Doppler microembolic signal monitoring at the vertebrobasilar junction in vertebral artery dissection patients.

Journal of neuroimaging : official journal of the American Society of Neuroimaging·2012

Area of Science:

  • Neurology
  • Radiology
  • Neurosurgery

Background:

  • Subarachnoid hemorrhage (SAH) diagnosis often involves angiography.
  • Initial angiograms may miss aneurysms in a subset of SAH patients.
  • Computed tomographic (CT) imaging is a primary diagnostic tool for SAH.

Purpose of the Study:

  • To evaluate the accuracy of CT scans in identifying patients with angiographically missed aneurysms after subarachnoid hemorrhage.
  • To determine if CT findings can predict the presence of aneurysms not detected by initial angiography.

Main Methods:

  • Retrospective review of CT scans and angiograms from 45 patients with SAH and initially negative angiograms.
  • Analysis of CT scan findings, specifically the presence and location of subarachnoid blood.

Related Experiment Videos

  • Correlation of CT findings with results of subsequent angiographic studies.

    • Main Results:

    • Aneurysms were ultimately found in 8 of 45 patients (17.8%) via repeat angiography.
    • CT scans showed an aneurysm in 21% of patients with thin subarachnoid blood and 63% with thick subarachnoid blood.
    • A considerable amount of blood in the basal frontal interhemispheric fissure on CT indicated a high probability (70%) of an anterior communicating artery aneurysm.

    Conclusions:

    • CT scan findings, particularly the thickness of subarachnoid blood, are valuable in predicting the likelihood of a missed aneurysm.
    • Repeat angiographic studies are recommended when CT scans show evidence of subarachnoid blood.
    • Specific CT patterns, like blood in the basal frontal interhemispheric fissure, strongly suggest anterior communicating artery aneurysms.