Performance of Abbott Alinity hq hematology analyzer for automated cell counting of body fluids

Author(s):  
Pauline H. Herroelen ◽  
Simke Demeester ◽  
Serge Damiaens ◽  
Anton Evenepoel ◽  
Kristin Jochmans
Author(s):  
María José Alcaide Martín ◽  
Laura Altimira Queral ◽  
Laura Sahuquillo Frías ◽  
Laura Valiña Amado ◽  
Anna Merino ◽  
...  

Abstract Body fluid cell counting provides valuable information for the diagnosis and treatment of a variety of conditions. Chamber cell count and cellularity analysis by optical microscopy are considered the gold-standard method for cell counting. However, this method has a long turnaround time and limited reproducibility, and requires highly-trained personnel. In the recent decades, specific modes have been developed for the analysis of body fluids. These modes, which perform automated cell counting, are incorporated into hemocytometers and urine analyzers. These innovations have been rapidly incorporated into routine laboratory practice. At present, a variety of analyzers are available that enable automated cell counting for body fluids. Nevertheless, these analyzers have some limitations and can only be operated by highly-qualified laboratory professionals. In this review, we provide an overview of the most relevant automated cell counters currently available for body fluids, the interpretation of the parameters measured by these analyzers, their main analytical features, and the role of optical microscopy as automated cell counters gain ground.


Author(s):  
D. E. Becker

An efficient, robust, and widely-applicable technique is presented for computational synthesis of high-resolution, wide-area images of a specimen from a series of overlapping partial views. This technique can also be used to combine the results of various forms of image analysis, such as segmentation, automated cell counting, deblurring, and neuron tracing, to generate representations that are equivalent to processing the large wide-area image, rather than the individual partial views. This can be a first step towards quantitation of the higher-level tissue architecture. The computational approach overcomes mechanical limitations, such as hysterisis and backlash, of microscope stages. It also automates a procedure that is currently done manually. One application is the high-resolution visualization and/or quantitation of large batches of specimens that are much wider than the field of view of the microscope.The automated montage synthesis begins by computing a concise set of landmark points for each partial view. The type of landmarks used can vary greatly depending on the images of interest. In many cases, image analysis performed on each data set can provide useful landmarks. Even when no such “natural” landmarks are available, image processing can often provide useful landmarks.


Author(s):  
Shouvik Chakraborty

Image segmentation has been an active topic of research for many years. Edges characterize boundaries, and therefore, detection of edges is a problem of fundamental importance in image processing. Edge detection in images significantly reduces the amount of data and filters out useless information while preserving the important structural properties in an image. Edges carry significant information about the image structure and shape, which is useful in various applications related with computer vision. In many applications, the edge detection is used as a pre-processing step. Edge detection is highly beneficial in automated cell counting, structural analysis of the image, automated object detection, shape analysis, optical character recognition, etc. Different filters are developed to find the gradients and detect edges. In this chapter, a new filter (kernel) is proposed, and the compass operator is applied on it to detect edges more efficiently. The results are compared with some of the previously proposed filters both qualitatively and quantitatively.


2015 ◽  
Vol 10 (1) ◽  
pp. 55 ◽  
Author(s):  
Jasmina Hodzic ◽  
Ilse Dingjan ◽  
Mariëlle Maas ◽  
Ida H van der Meulen-Muileman ◽  
Renee X de Menezes ◽  
...  

Acta Tropica ◽  
2015 ◽  
Vol 143 ◽  
pp. 47-50 ◽  
Author(s):  
Ana Liempi ◽  
Christian Castillo ◽  
Mauricio Cerda ◽  
Daniel Droguett ◽  
Juan Duaso ◽  
...  

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