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Biomedical subjects

C Berta

Publications and source records attributed to C Berta.

2 recordsLinked to original sources
PubMed1993

Rapid karyotyping in ectopic pregnancies.

The aim of this study was to determine the feasibility of karyotyping ectopic Fallopian tube pregnancies utilizing dividing cytotrophoblast cells. Villi from 78 ectopic conceptuses were processed by the direct chromosome technique and cytogenetic diagnosis was successful in 60 cases (76.9 per cent). The amount of villi obtained, as well as villus morphology, was correlated with cytogenetic success rate. Histological examination of the Fallopian tube was also carried out. A total of 47 cases were chromosomally abnormal (78.3 per cent), which is the highest frequency of cytogenetic abnormalities reported to date.

Chorionic Villi Sampling↗
PubMed1992

High energy photon beam percent depth dose curves.

The percent depth dose of 8 MV and 18 MV photon beams were measured for various field sizes. The percent depth dose curves exhibited crossed over at selective depth in phantom. Hence, the percent depth dose increases at shallower depth, is independent at crossed over depth, and decreases at deeper depth with decreasing field size. This peculiar phenomenon, which cannot be explained using the primary and scattered radiation concept, should be noted.

Humans↗