Evaluation of morphological criteria of sperm quality before in vitro fertilization and intracytoplasmic sperm injection.

The quality of sperm has a direct influence on the fertilization and developmental competence of embryos. In the literature we did not find defined criteria for evaluation of normal sperm parameters in various species of domestic mammals. Therefore we attempted to review evaluation of criteria of morphologically normal human sperm and their abnormalities.

[Effects of cardioelectrostimulation and chemical preparations on autonomic nervous regulation of heart rate].

The aim of the study was to evaluate the peculiarities of heart rate variability and autonomic nervous system regulation and to predict the changes in sinus rhythm after successful medical or electrical correction. 72 patients with atrial fibrillation before and after its correction have been monitored. Atrial fibrillation during the first month after cardioversion occurred in 26.

[The center of the human porta hepatis].

Unlabelled: Majority of interventional procedures are made at the porta hepatis, which has a different location on the visceral surface of the liver.

Objective: To describe the location of the porta hepatis in respect of the borders of the visceral surface and separate lobes of the liver.

Material And Methods: Sixty-four human livers were obtained at autopsy (mean age, 45 years).

[Thickness of cerebral cortex measured using anatomical mesoscopic imaging and magnetic resonance imaging].

Objective: Magnetic resonance imaging method opened up the possibility for in vivo examination of the anatomy of human brain. For this reason it is interesting and relevant to compare the knowledge accumulated over a number of years during the examination of the composition of dead brain to that obtained from magnetic resonance images. The aim of this study was to determine and compare the thickness of cerebral cortex in human of different age and sex, measured in different sites of the hemispheres when applying anatomical mesoscopic imaging and magnetic resonance imaging.

Clinical and anatomical basis for the classification of the structural parts of liver.

Progress of diagnostic human's liver imaging (ultrasound, computerized tomography, magnetic nuclear resonance, etc.) stimulates development of modern liver surgery. Therefore, before and during the operation, surgeons and radiologists can determine the site and extent of liver damage, its relationship with blood vessels and ascertain which part of the liver should be resected.