Three-dimensional CT angiography in the evaluation of cerebral arteries in acute hemorrhage

Related Experiment Video

Updated: Aug 30, 2026

A Volumetric Method for Quantification of Cerebral Vasospasm in a Murine Model of Subarachnoid Hemorrhage
08:12

A Volumetric Method for Quantification of Cerebral Vasospasm in a Murine Model of Subarachnoid Hemorrhage

Published on: July 28, 2018

K V Rajagopal1, B N Lakhkar, D K Acharya

  • 1Department of Radio Diagnosis & Imaging, Kasturba Medical College, Manipal 576-119, Karnataka, India.

Neurology India
|October 23, 2003
PubMed

Insights

Three-dimensional CT angiography (3D CTA) effectively detects cerebral aneurysms with high sensitivity and specificity. This non-invasive imaging technique aids in identifying aneurysm origin and neck, proving valuable for diagnosis.

Area of Science:

  • Neuroradiology
  • Medical Imaging

Background:

  • Cerebral aneurysms pose a significant risk for subarachnoid hemorrhage.
  • Accurate detection and characterization are crucial for effective treatment planning.

Purpose of the Study:

  • To evaluate the diagnostic value of non-invasive three-dimensional CT angiography (3D CTA) for detecting cerebral aneurysms.

Main Methods:

  • Helical CT acquisition with non-ionic contrast in 50 patients.
  • Maximum Intensity Projection (MIP) reconstruction for 3D CTA.
  • Comparison with digital subtraction angiography (DSA) in 14 patients.

Main Results:

  • 3D CTA detected 38 out of 39 aneurysms (97.4% detection rate).
  • High specificity (100%) and sensitivity (97.2%) for aneurysm detection.
  • Accurate visualization of aneurysm origin and neck in most cases (97%).

Conclusions:

  • 3D CTA is a simple, quick, and non-invasive method for cerebral aneurysm detection.
  • It can replace DSA in many cases, particularly for aneurysms in the circle of Willis.
  • Provides clear depiction of aneurysm relation to bony landmarks.
Abstract

More Related Videos

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

Combined Near-infrared Fluorescent Imaging and Micro-computed Tomography for Directly Visualizing Cerebral Thromboemboli13:10

Combined Near-infrared Fluorescent Imaging and Micro-computed Tomography for Directly Visualizing Cerebral Thromboemboli

Published on: September 25, 2016

Related Concept Videos

Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

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...