Results 251 to 260 of about 345,987 (305)

Influence of hemolysis on nucleated red blood cells count

International Journal of Laboratory Hematology, 2023
AbstractIntroductionHemolysis is a common pre‐analytical factor that can influence test results. Here, we explored the influence of hemolysis on nucleated red blood cells (NRBCs) count and tried to illustrate the mechanisms underlying this interference.MethodsFrom July 2019 to June 2021, 20 preanalytical hemolytic peripheral blood (PB) samples from ...
Xiuli Cheng, Le Zhang, Haimiao Yu, Biao Zhang   +3 more
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Coincidence correction in red blood cell counting

Physics in Medicine and Biology, 1989
A method has been developed for accurate correction of red blood cell count for coincidence in aperture-impedance electronic blood cell counters. It is based on extrapolation of the slope of regression of the counts which are obtained with sequential dilutions of the samples.
S M, Lewis, J M, England, F, Kubota
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A System for Counting Fetal and Maternal Red Blood Cells

IEEE Transactions on Biomedical Engineering, 2014
The Kleihauer-Betke (KB) test is the standard method for quantitating fetal-maternal hemorrhage in maternal care. In hospitals, the KB test is performed by a certified technologist to count a minimum of 2000 fetal and maternal red blood cells (RBCs) on a blood smear. Manual counting suffers from inherent inconsistency and unreliability.
Ji Ge, Zheng Gong, Jun Chen, Jun Liu 0007, John Nguyen, Zongyi Yang, Chen Wang, Yu Sun 0001   +7 more
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The automatic counting of red blood cells

British Journal of Applied Physics, 1954
The paper considers automatic blood cell counting apparatus in which the cells are scanned by mechanical oscillation of a microscope stage. It is shown how errors can arise from various sources and how these errors may be minimized by use of suitable electronic circuits, by careful choice of parameters and by adopting a novel shape of scanning aperture.
E H Cooke-Yarborough, R E Whyard
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Improved red blood cell counting in thin blood smears

2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011
Quantification of the extent of malaria parasite infection (parasitaemia) continues to rely on time-consuming manual microscopy of Giemsa-stained blood smears. We present an algorithm that counts red blood cells in thin blood smear images, the first step in the determination of malaria parasitaemia.
Heidi Berge, Dale Taylor, Sriram Krishnan, Tania S. Douglas   +3 more
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Neonatal nucleated red blood cell counts in twins

Journal of Perinatal Medicine, 2001
We counted nucleated red blood cells (NRBC) per 100 white blood cells (WBC) in the umbilical cord blood from 98 twins born to 49 women with uncomplicated twin pregnancies at > or = 34 weeks of gestation to better characterize NRBC in twins. Twelve women with monochorionic (MC) placentas and 37 with dichorionic (DC) placentas gave birth at 36.7 +/- .9 ...
H, Mori, K, Mori, Y, Kojima, A, Ohkuchi, H, Funamoto, H, Minakami, I, Sato, T, Nakano   +7 more
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Determination of the red blood cell count and haemoglobin content of urodele blood

The Anatomical Record, 1969
AbstractRed blood cell count and haemoglobin content for blood of normal adult salamanders, Taricha granulosa, are presented. The RBC count is some 4 × 104/mm3 blood and the haemoglobin level some 4.5 gm/100 ml blood. Some evidence suggesting transient changes in these levels for a brief period immediately following hibernation is discussed.
G B, Friedmann, F T, Algard, H M, McCurdy   +2 more
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Coherent Optical Recognition and Counting of Reticulated Red Blood Cells

IEEE Transactions on Biomedical Engineering, 1974
A coherent optical data-processing system for identifying and counting blood cells has been developed. Optical Weiner-Kolmogorov (minimum mean-square error) linear filtering is employed to estimate the density per unit area of a given cell type present in a sample blood smear.
J E, Ward, F P, Carlson, J D, Heywood
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Red cell count dependence of whole blood granulocyte luminescence

Klinische Wochenschrift, 1983
To evaluate phagocytosis of granulocyte, chemiluminescence (CL) - measurements were done in whole blood specimen. By this method much less variation (22% versus 84%) could be achieved in the whole blood specimen compared with isolated granulocytes. The quenching of CL by erythrocytes, which is dependent on the quotient erythrocytes/granulocytes, could ...
H, Redl, H, Lamche, G, Schlag
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Circlet based framework for red blood cells segmentation and counting

2015 IEEE Workshop on Signal Processing Systems (SiPS), 2015
The number of Red Blood Cells (RBCs) from blood smear is very important to detect as well as to follow the treatment of many diseases like anemia and leukemia. The old conventional method of RBC counting under microscope gives an unreliable and inaccurate result depending on clinical laboratory technician skills.
Omid Sarrafzadeh, Alireza Mehri Dehnavi, Hossein Rabbani, Narjes Ghane, Ardeshir Talebi   +4 more
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