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In the present paper the images produced by spheres of varying diameter (d = 4,6,8,10 mm) embedded in a homogeneous substance of varying densities (H' = 3,48,93,137 Hounsfield units) as produced by computer tomography were studied. Measurements show that for each sphere diameter there is a minimum contrast between the substance of the sphere and its surroundings which must exist in order to show this sphere by computer tomography. It was also shown that the partial volume effect is of significance for the attenuation of the spheres. The effect of the position of the spheres within the slices to be imaged was studied. The results clearly indicate that in the investigation of small tissue changes in the body, the thickness of the slice and patient displacement should be kept as small as possible.
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
November 1979,
Strahlentherapie,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
April 1996,
La Radiologia medica,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
August 1991,
Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
July 1981,
Ceskoslovenska gynekologie,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
October 1979,
Zeitschrift fur Kardiologie,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
August 1977,
Rinsho hoshasen. Clinical radiography,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
October 1975,
Hu li za zhi The journal of nursing,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
December 1978,
RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
June 1979,
Radiobiologia, radiotherapia,
E Schultz, and
R Felix, and
K Lackner, and
H D Bergeder, and
P Thurn
February 1980,
Rontgen-Blatter; Zeitschrift fur Rontgen-Technik und medizinisch-wissenschaftliche Photographie,
