[Results of testing of MINISKAN mobile gamma-ray camera and specific features of its design].

The main results of engineering, biomedical, and clinical testing of MINISKAN mobile gamma-ray camera are presented. Specific features of the camera hardware and software, as well as the main technical specifications, are described. The gamma-ray camera implements a new technology based on reconstructive tomography, aperture encoding, and digital processing of signals.

[Morphological appearance of cellular immune reaction in the endometrium in spontaneous miscarriage]. / Morfologicheskie proiavleniia immunokletochnykh reaktsii v éndometrii pri samoproizvol'nykh vykidyshakh.

Morphometric analysis of lymphocyte, macrophage and polymorphonuclear leukocyte levels in the endometrial stroma was performed in 67 spontaneous and 30 induced abortions during 5-12 weeks of gestation. The results were correlated with the degree of structural maturity of decidual tissue and terminal chorionic villi and showed activation of lymphocyte macrophage reaction mostly pronounced in case of incomplete decidual transformation of endometrial stroma and hypoplastic alterations of chorionic villi. It was concluded that the aforementioned changes were secondary to a decreased function the gravid yellow body and subsequent activation of cell-mediated immune response in the endometrium during spontaneous abortion.

[Structural changes in the chorionic terminal villi and endometrial decidual tissue in spontaneous abortions]. / Strukturnye izmeneniia terminal'nykh vorsin khoriona i detsidual''noi tkani éndometriia pri samoproizvol'nykh vykidyshakh.

PIP: In order to determine structural changes of the chorionic villi and the deciduous tissue during spontaneous abortions, a morphological study of the mucus of the corpus uteri of 80 women, aged 19-37, was performed. They were divided into 3 groups: 1) induced abortion within 5-12 weeks, 2) spontaneous abortion between 5-8 weeks, 3) abortion occurring despite therapy. The women had begun taking hormonal preparations and vitamins in order to continue pregnancy. A detailed analysis of the structure of the endometrial deciduous tissue revealed 4 types of cells. 1 type was characterized by a stretched form with homogeneous basophilous rounded cytoplasm and a large hyperchromatic center. Another type had a rounded form and an increased center. A 3rd type displayed a polygonal outline and increased cytoplasm. A 4th type consisted of vacuolated cytoplasm and a pyknotic center. These types were assigned respectively to immature, maturing, mature, and dystrophic types. An evaluation of the functional conditions of the chorionic villi and the level of structural maturity of the cells of the deciduous endometrial tissue was performed. During the 1st 5-6 weeks of pregnancy these were either unmatured and or in the process of maturing. After 7-8 weeks the number of mature villi greatly increased and after 9-10 weeks they become very predominant, while the terminal chorionic villi changed hypoplastically and dystrophically. In order to establish the reason for the pathological change of the terminal chorionic villi, a comparison was made of the levels of pronounced hypoplastic, dystrophic and necrotic change of the villi with the level of structural differentiation of the cells of the endometrial deciduous tissue in correlation with the development and ceasing of pregnancy. The hypoplasia of the terminal chorionic villi increased during the course of pregnancy. It was found that hypoplasia of terminal chorionic villi is a characteristic morphological indication of spontaneous abortion.^ieng

[Method of emergency cytomorphologic diagnosis of basal deciduitis]. / Metod ékstrennoi tsitomorfologicheskoi diagnostiki bazal'nogo detsiduita.

A possibility of early cytomorphologic diagnosis of postnatal endometritis is shown on 57 observations: the number of lymphocytes and granulocytes and their ratio was determined from the scrapings of the placental basal lamina.