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Volume determinations of the encephalic ventricles with CT and MRI | JoVE Visualize

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Volume determinations of the encephalic ventricles with CT and MRI

G D Cramer¹, D I Allen, L J DiDio

¹National College of Chiropractic, Lombard, Illinois 60148.

Surgical and Radiologic Anatomy : SRA|January 1, 1990

View abstract on PubMed

Summary

Magnetic resonance imaging (MRI) accurately measures fluid-filled spaces like brain ventricles. This study shows MRI is superior to computerized tomography (CT) for precise volumetric analysis in phantom models.

Area of Science:

Medical Imaging
Radiology
Neuroimaging

Background:

Enlargement of encephalic ventricles is linked to conditions like Alzheimer's disease and hydrocephalus.
Accurate measurement of ventricular volume aids diagnosis and patient follow-up.
Developing precise imaging techniques for ventricular volume assessment is crucial.

Purpose of the Study:

To evaluate the feasibility of using magnetic resonance imaging (MRI) for measuring fluid-filled spaces.
To compare the accuracy of MRI with computerized tomography (CT) in volumetric measurements.
To present data from the initial phase of a three-phase study on ventricular volume determination.

Main Methods:

Utilized three phantom preparations (small, medium, large) simulating ventricles.
Performed volumetric calculations using a Calcomp 9,000 digital analyzer.
Compared MRI scan results with CT scan data for the same phantoms.

Main Results:

MRI successfully measured fluid-filled spaces in phantom models.
MRI demonstrated higher accuracy than CT in measuring water-filled cavities.
The average percent difference from actual volume was 8.3% for MRI versus 15.8% for CT.

Conclusions:

MRI is a viable and accurate method for measuring the volume of fluid-filled cavities.
MRI shows improved precision over CT for ventricular volume assessment in phantom studies.
This initial phase supports MRI's potential for clinical application in diagnosing and monitoring conditions affecting ventricular size.

Condensed Matter Physics

Condensed Matter Imaging

Volume Determinations Of The Encephalic Ventricles With Ct And Mri