Josef Nečas

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AIMS The aim of this project was to define normal values of right ventricular (RV) volumes and ejection fraction (EF) in healthy population using 2D echocardiography. METHODS AND RESULTS The "patient" group comprised 91 healthy volunteers aged 17-62 years. RV volumetry was based on ellipsoidal shell model method. Left ventricular (LV) volumes were(More)
AIM To evaluate the mitral annulus characteristics in significant mitral regurgitant lesions using mitral valve quantification (MVQ) program. METHODS We examined 117 patients (39 women), aged 18-86. Patients were separated into four subgroups: 35 patients with ischemic mitral regurgitation, 42 patients with isolated prolapse of the mitral valve, 12(More)
OBJECTIVES Acute rejection episodes negatively effect both short-term survival and development of graft vasculopathy. METHODS We assessed the incidence and severity of acute rejection episodes under a new protocol using a monoclonal antibody daclizumab in the induction phase of immunosuppressive therapy. The study group B (26 patients) was given(More)
After heart transplantation the effect of immunosuppression is monitored by histopathology of endomyocardial biopsy (EMB). EMB is usually carried out under X-ray guidance. Between January 1998 and March 2003, 1,262 biopsies were collected under echo-guidance in 156 patients. The biopsy access was gained through the internal jugular vein, by the standard(More)
An attempt was made to show the possibility of analysis of the phenotypic as well as genotypic make-up of two complex physiological characters of cultivated potatoes. The complex characters were the yielding capacity and the water relations. The components of the first were analysed for some potato varieties by the method of growth analysis. For the(More)
In field experiments, potato varieties with different lengths of the vegetation period were compared. The methods of growth analysis were applied to the evaluation of these experiments. Some important specific features of potato growth had to be taken into account to make the application of the growth analysis successful and to enable valid and reliable(More)
V práci byla sledována dědičnost vývinu laterálních kvítků při křížení dvouřadých forem ječmene typu distichon a šestiřadých forem typu vulgare a brachyurum. Znak může být užit pro identifikaci skutečných hybridů již v F l generaci při křížení dvouřadých a šestiřadých forem, kde dominuje dvouřadost. Nepodařená křížení je pak možno včas vyloučit. Také pro(More)
Time doses of a single concentration of streptomycin and its concentration doses acting for the same time period in a liquid medium had different effects on three strains of chlorococcal algae. This concerned both the physiological responses and permanent changes in the characteristics of cell colonies growing from treated cells. Significant differences(More)
Dependence of the growth of this alga culture on temperature displays a wide interval of temperatures (from 4 °C to 30 °C) and the dependence of the sexual reproduction only a narrow one (from 18 °C to 25 °C). The optimum temperatures for both the processes are not so different (round 23 °C). Dependence of both the processes on irradiance displays a wide(More)