PubMed Health⌕ Search

Biomedical subjects

J Kuba

Publications and source records attributed to J Kuba.

At least 19 recordsLinked to original sources
PubMed1995

[Determination of differential renal function using dynamic scintigraphy].

By examination of 71 patients, using static and dynamic scintigraphy of the kidneys, the authors tested whether dynamic scintigraphy provides correct results of the separate renal function in case of a symmetrical localization of the kidneys. In case of slight asymmetry the error of calculation is feasible. In case of major differences in the position of the kidneys the results cannot be used for clinical purposes. In these patients static scintigraphy must be used with correction for different absorption layers.

Humans↗
PubMed1992

[Determination of differential renal function using 99m Tc-DMSA scintigraphy].

By examination of 331 patients, using 99mTc-DMSA, the authors confirmed that static scintigraphy is an accurate method for assessment of the separate renal function. In four groups of patients with different positions of the kidneys the authors proved that correction for different absorption of gamma radiation from the left and right kidney is essential. Without correction results with a significant error are obtained, in particular in patients with an asymmetric position of the kidneys, where the results calculated without correction cannot be used for clinical purposes. The results are not influenced by the time interval between administration of the radiopharmaceutical preparation and examinations within an interval of 2 to 4 hours, with the exception of patients with severe obstructive uropathy. For assessment of the relative function of the kidneys it is better to examine the patient in a vertical position. The reproducibility of results in repeated examinations and repeated evaluation is excellent.

Humans↗
PubMed1989

[Antibodies against thyroxine, triiodothyronine and thyroglobulin as a possible cause of error in the diagnosis of disorders of thyroid gland function].

The authors examined in a 82-year-old female patient T4, T3, free T4, TSH, thyroglobulin and made the TRH-TSH functional test because of suspected thyroid disease. For thyroid hormones they obtained controversial resulting levels: in T4 signalizing an unreasonable negative value, in T3 a very high level, in TSH and the TRH-TSH test levels suggesting normal thyroid function which was consistent with the clinical picture. A more detailed laboratory analysis revealed the presence of antibodies binding 125I-T4 and 125I-T3 (radioindicators used for assessment of T4 and T3). The authors identified antibodies against T4, T3 and thyroglobulin. Their presence influenced the radioimmunoassay of T4 and T3 and also the immunoradiometric estimation of thyroglobulin (artificially raised level). The reliable result of the eufunctional condition was not influenced in the estimation of the TSH level.

Aged↗
PubMed1988

Indications for endarterectomy and STA-MCA shunts in the brain atherosclerosis.

Altogether 169 operations of patients with occlusion or stenosis of the brain arteries and brain magistral arteries are reviewed. In 151 patients the cause of disease was atherosclerosis. No one of the patients has died. According to the thorough investigation consisting of panangiography, dynamic scintigraphy, sonography, ophthalmodynamometry, CT and other clinical investigations, either extra-intra-cranial shunts (STA MCA), or endarterectomies were carried out. The indications for these operations were elaborated with regards to the cause of tandem changes in arteries or to bilateral atherosclerotic changes of the brain arteries. Out of the total 169 operations, 30 endarterectomies were performed. Only two post-surgical complications have appeared, one of them post STA MCA operation and the other after endarterectomy.

Adolescent↗
PubMed1980

Dynamic scintigraphy with high temporal resolution. Phase dynamic studies of rapid periodical processes.

The theory and general method of construction of the phase dynamic studies of rapid periodical processes with high temporal resolution is described briefly. Moreover, problems are discussed that are associated with the introduction of external pulses into dynamic studies in LIST-mode, the spatial and temporal reconstruction from LIST-mode, the computer's construction of phase dynamic studies, the selection of correct cycles, the creation of phase histograms and processing of the phase studies. The method is illustrated by a general program LIST leads to PHASE DYNAM. STUDY created for Clincom apparatus. In addition to the general method, there is mentioned here the modification of the simplified procedure--a well-known EKG-gated method. Some aspects of the method are documented by the results of phantom measurement and clinical examinations.

Electrocardiography↗