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Biomedical subjects

V Synek

Publications and source records attributed to V Synek.

At least 19 recordsLinked to original sources
PubMed1979

Comparison of the measurements of the cerebral ventricles obtained by CT scanning and pneumoencephalography.

This study was undertaken to compare the accuracy of measurements of the venticular system obtained by the CT scanner and pneumoencephalography (PEG). In it the ventricular system was evaluated in each case by measuring the span of the frontal horns, cellae mediae and third ventricle in relation to the diameter of the inner and outer tables of the skull from the PEG films. The indices of Evans, Schiersmann, and Schaltenbrand and Nürnberger were applied to these measurements. The same indices were obtained using the appropriate CT printouts. A very good measure of agreement was obtained with the indices arrived at from both the CT scan printouts and the pneumoencephalograms.

Adolescent↗
PubMed1976

Comparing Evans' index and computerized axial tomography in assessing relationship of ventricular size to brain size.

Using pneumoencephalography and computerized axial tomography (EMI scanning) Polaroid pictures, the relationship between ventricular size and cerebral size was investigated in 35 patients. Evans' index was used for pneumoencephalograms, and planimetric measurement of the ventricular and cerebral cross-sectional areas was used for EMI scanning. The percentage ratio for the latter technique is termed VBR. The correlation coefficient between the two methods was 0.9510 (p less than 0.001).

Adolescent↗
PubMed1976

The ventricular-brain ratio using planimetric measurement of EMI scans.

A correlation has been shown between the cross-sectional area of the cerebral ventricular system and the cross-sectional area of the brain in 62 patients, using the EMI Scanner. The percentage ratio has been abbreviated to VBR. The patients were divided into normal, equivocal, cerebral atrophy and hydrocephalus, according to their PEG's. The measurements were obtained by the use of a plaimeter and by outlining the ventricular and cerebral perimeters from the EMI Polaroid pictures. The VBR was found to be approximately five in those patients without detectable pathology, about seven in equivocal cases, and above ten in abnormal cases (atrophy, hydrocephalus). The hydrocephalic readings were generally higher than those for cerebral atrophy.

Adult↗