[Comparative morphofunctional characteristics of arterial blood vessels of the different kidney segments in humans].

The arterial blood vessels of 26 kidneys of people of both sexes at the first period of mature age were studied. Using Doppler renal investigation of superior segmental and anterior inferior segmental arteries in color duplex scan mode and multislice computed tomographic angiography, intravital investigation of 20 kidneys were performed. Corrosion casts of the renal vasculature of 6 kidneys, obtained at autopsy, were studied using scanning electron microscopy. It was shown that in kidneys with a single renal artery, anterior inferior and superior segments have a similar level of blood supply--when quantitative parameters of hemodynamics of these renal segments were compared, no significant differences were detected; in fact, no differences were found in the angioarchitectonics of anterior inferior and superior segments. In both segments, initial signs of age involution were found in the form of appearance of individual deformed glomeruli and some rarefaction of capillary network in the renal medulla.

[Multispiral computed tomography-assisted angiography in diagnosis of diseases of the aorta and lower limb arteries].

PURPOSE OF THE STUDY: Our work was aimed at determining the diagnostic value of multislice computed tomography-assisted angiography in atherosclerotic lesions of the aorta and arteries of the lower limbs, taking into consideration the condition of the peripheral bed, as well as at making an angiographic assessment of the quality of the reconstructive operations performed. MATERIAL AND METHODS: Over the period from October 2005 to July 2006, multispiral computed tomography-assisted angiography (hereinafter referred to as MSCTA) followed by an operative intervention was carried out in a total of 59 patients who were diagnosed with diseases of the aorta and arteries of the lower extremities. The average age of the patients was 59.1 years (range from 17 to 83 years). MSCTA was carried out using a 16-slice CT scanner (Somatom Sensation Cardiac 16, <>) during the arterial phase of injecting the non-ionic radiopaque material <> (<>, Germany). RESULTS: Studying the dissemination of the obliterating processes revealed an aneurysm of the abdominal portion of the aorta (n=10), while in the remaining cases atherosclerotic lesions were observed to be localized in the aorto-femoral (n=17) and femoropopliteal segments (n=32). Comparing the findings obtained by the comprehensive examination and analysis of the angiograms, we determined that the sensitivity, specificity and accuracy of MSCTA in the mentioned groups amounted to 96%, 92% and 94%, respectively. CONCLUSION: MSCTA performed using the novel software appears to be an alternative to other diagnostic methods of examining patients presenting with occlusive diseases of the lower limb arteries.