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Оценка клиренса 99mтс-дтпа методами гаммаи жидкостно-сцинтилляционной спектрометрии для расчета скорости клубочковой фильтрации

Оценка клиренса 99mтс-дтпа методами гаммаи жидкостно-сцинтилляционной спектрометрии для расчета скорости клубочковой фильтрации

Abstract

Estimation of glomelular filtration rate (GFR) has the special importance bemuse it mn provide the information on damage of glomerulus and mn be the one of the major early citerions characterized the normal function of kidneys. Width-available methods of GFR estimation can not always give valid results. Methods with the usage of radiopharm drugs (RPD) allows to perform the estimation of GFR with the high accuracy that has the big clinical significance. Aim of the work to test the protocols of GFR estimation with the help of the clearance of single infused RPD 99mTc-DTPA and reveal the correlation between GFR estimated by the clearance of 99m Tc-DTPA calculated with gamma spectrometric method (GS) and liquid scintillation spectrometry (LSS). Twenty patients were enrolled. Blood samples collection was made after 1, 2 and 3 hours after intravenous infusion of 99mTc-DTPA. Estimation was made by the LSS method and with the help of GS. GFR was calculated as rate of infused dose Dg to surface under the curve of excretion S. Our results suggest that the previous published data is correct. This data shows that for correct calculation of GFR is enough to do the estimation of drug clearance in blood samples received after 1, 2 and 3 hours after infusion of RPD. Thus, the protocols of GFR estimation by the clearance of single infused RPD by the methods of GS and LSS were tested. GFR data calculated by 99mTc-DTPA clearance with the help of method LSS did not showed any differences in comparison with GS method.

Определение скорости клубочковой фильтрации (СКФ) имеет особое значение, так как позволяет судить о повреждении клубочков и является одним из основных ранних критериев, характеризующих функциональное состояние почек. Широкодоступные методы определения СКФ не всегда демонстрируют достоверные результаты. Методики с использованием радиофармпрепаратов (РФП) позволяют выполнять оценку СКФ с большой точностью, что имеет важное клиническое значение. Цель исследования отработать протоколы определения СКФ по клиренсу однократно введенного РФП99тТс-ДТПА и определить взаимосвязь между СКФ, рассчитанной по клиренсу 99тТс-ДТПА, измеренного гамма-спектрометрическим методом (ГС) и методом жидкостно-сцинтилляционной спектрометрии (ЖСС). В исследование включены 20 человек. Забор образцов крови выполняли через 1, 2 и 3 ч после внутривенного введения Тс-ДТПА. Измерения проводили методом ЖСС и на гамма-спектрометре. СКФ рассчитывали как отношение введенной дозы D0 к площади под кривой выведения S. Полученные нами результаты подтверждают ранее опубликованные данные, что для корректного определения СКФ достаточно выполнять оценку клиренса препарата в образцах крови, полученных через 1, 2 и 3 ч после введения РФП. Успешно отработаны протоколы определения СКФ по клиренсу однократно введенного РФП методами ГС и ЖСС. Полученные значения СКФ, рассчитанные по клиренсу 99тТс-ДТПА методом ЖСС, не показали существенных различий при сравнении с ГС.

Keywords

СКОРОСТЬ КЛУБОЧКОВОЙ ФИЛЬТРАЦИИ,РАДИОФАРМПРЕПАРАТ,99ТТС-ДТПА,ГАММА-СПЕКТРОМЕТРИЧЕСКИЙ МЕТОД,МЕТОД ЖИДКОСТНО-СЦИНТИЛЛЯЦИОННОЙ СПЕКТРОМЕТРИИ,GLOMERULAR FILTRATION RATE,RADIOPHARMACEUTICAL,99MTC-DTPA,GAMMA SPECTROMETRY,LIQUID SCINTILLATION SPECTROMETRY

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average