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Calculation of CSF spaces in CT

Conference:

Abstract

Objective digital determination of CSF spaces is discussed, with ventricular and subarachnoid spaces handled separately. This method avoids the difficulty of visual definition of ventricular borders in planimetric measurements. The principle is to count automatically all pixels corresponding to CSF in a given region with a Hounsfield unit and to multiply this number by the pixel size. This will give the total surface area of CSF spaces in square millimeters. The calculation of pixel values for CSF spaces and brain tissue is experimentally formulated taking the intersection of the Gaussian curves for ventricular content and brain tissue. In practice, the determination of CSF spaces is done by first calculating a histogram of the total brain in a given slice defining all CSF spaces. Next a histogram of a region including ventricles with adjoining tissue is calculated and the ventricular size is calculated. By subtraction of the ventricle value from the total CSF space value, the subarachnoid space size is obtained. The advantages of this mehtod will be discussed.
Authors:
Hacker, H; Artmann, H [1] 
  1. Frankfurt Univ. (Germany, F.R.). Abt. fuer Neuroradiologie
Publication Date:
Jan 01, 1978
Product Type:
Conference
Reference Number:
AIX-10-473348; EDB-80-024273
Resource Relation:
Journal Name: Neuroradiology; (Germany, Federal Republic of); Journal Volume: 16; Conference: 11. neuroradiological symposium, Wiesbaden, Germany, F.R., 4 - 10 Jun 1978
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; BRAIN; TOMOGRAPHY; CEREBROSPINAL FLUID; COMPUTERS; DATA PROCESSING; DENSITY; GAUSSIAN PROCESSES; BIOLOGICAL MATERIALS; BODY; BODY FLUIDS; CENTRAL NERVOUS SYSTEM; NERVOUS SYSTEM; ORGANS; PHYSICAL PROPERTIES; PROCESSING; 550601* - Medicine- Unsealed Radionuclides in Diagnostics
OSTI ID:
5797143
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NRDYA
Submitting Site:
INIS
Size:
Pages: 190-191
Announcement Date:
May 13, 2001

Conference:

Citation Formats

Hacker, H, and Artmann, H. Calculation of CSF spaces in CT. Germany: N. p., 1978. Web.
Hacker, H, & Artmann, H. Calculation of CSF spaces in CT. Germany.
Hacker, H, and Artmann, H. 1978. "Calculation of CSF spaces in CT." Germany.
@misc{etde_5797143,
title = {Calculation of CSF spaces in CT}
author = {Hacker, H, and Artmann, H}
abstractNote = {Objective digital determination of CSF spaces is discussed, with ventricular and subarachnoid spaces handled separately. This method avoids the difficulty of visual definition of ventricular borders in planimetric measurements. The principle is to count automatically all pixels corresponding to CSF in a given region with a Hounsfield unit and to multiply this number by the pixel size. This will give the total surface area of CSF spaces in square millimeters. The calculation of pixel values for CSF spaces and brain tissue is experimentally formulated taking the intersection of the Gaussian curves for ventricular content and brain tissue. In practice, the determination of CSF spaces is done by first calculating a histogram of the total brain in a given slice defining all CSF spaces. Next a histogram of a region including ventricles with adjoining tissue is calculated and the ventricular size is calculated. By subtraction of the ventricle value from the total CSF space value, the subarachnoid space size is obtained. The advantages of this mehtod will be discussed.}
journal = {Neuroradiology; (Germany, Federal Republic of)}
volume = {16}
place = {Germany}
year = {1978}
month = {Jan}
}