Discovery of exacerbating cases in chronic hepatitis based on cluster analysis of time-series platelet count data

2007 ◽  
Author(s):  
Shoji Hirano ◽  
Shusaku Tsumoto
Keyword(s):  
Time Series ◽  
Cluster Analysis ◽  
Chronic Hepatitis ◽  
Platelet Count ◽  
Count Data ◽  
Analysis Of Time Series

scholarly journals Cluster analysis of time series K-Means line loss based on DWT distance

2021 ◽  
Vol 2137 (1) ◽  
pp. 012063
Author(s):  
Liming Song ◽  
Zhimin Chen ◽  
XinXin Meng ◽  
Shuai Kang
Keyword(s):  
Time Series ◽  
Cluster Analysis ◽  
Indicator System ◽  
Analysis Model ◽  
Running Time ◽  
Loss Analysis ◽  
Model Based ◽  
Traditional Algorithm ◽  
Line Loss ◽  
Analysis Of Time Series

Abstract This paper constructs an indicator system composed of inherent attributes and time characteristics of the line based on the line loss, and proposes a K-Means line loss cluster analysis model based on this indicator system. The line is classified according to the clustering results. The result is 314.51 on the CH index (Calinski Harabasz Index), 0.19 on the Silhouette Cofficient (Silhouette Cofficient), and a running time of 0.508s. Compared with the traditional algorithm, it is greatly improved. The field of line loss analysis has guiding significance.

Correlation in the heart rate data

1998 ◽  
Vol 2 ◽  
pp. 141-148
Author(s):  
J. Ulbikas ◽  
A. Čenys ◽  
D. Žemaitytė ◽  
G. Varoneckas
Keyword(s):  
Nonlinear Dynamics ◽  
Experimental Data ◽  
Heart Rate ◽  
Time Series ◽  
Cardiovascular Function ◽  
Statistical Properties ◽  
Rate Data ◽  
Heart Rate Data ◽  
Dynamical Nature ◽  
Analysis Of Time Series

Variety of methods of nonlinear dynamics have been used for possibility of an analysis of time series in experimental physiology. Dynamical nature of experimental data was checked using specific methods. Statistical properties of the heart rate have been investigated. Correlation between of cardiovascular function and statistical properties of both, heart rate and stroke volume, have been analyzed. Possibility to use a data from correlations in heart rate for monitoring of cardiovascular function was discussed.

Platelet Count Improvement after Chronic Hepatitis C Treatment among Cirrhotic Patients Who Achieved Sustained Virological Response: Realworld Results from 2186 Patients in Egypt

2020 ◽  
Vol 20 ◽  
Author(s):  
Rehab Badawi ◽  
Shaimaa Soliman ◽  
Lobna Aboali ◽  
Mahmoud Elkadeem ◽  
Asem Elfert ◽  
...  
Keyword(s):  
Liver Cirrhosis ◽  
Chronic Hepatitis ◽  
Platelet Count ◽  
Hepatitis C ◽  
Sustained Virological Response ◽  
Virological Response ◽  
Hcv Rna ◽  
End Of Treatment ◽  
Pugh Class ◽  
Direct Acting

Background & Aims: This study aimed to assess the changes in platelet counts of patients with liver cirrhosis due to chronic HCV, who achieved sustained virological response (SVR) after taking direct acting antivirals (DAAs) in a large cohort study in Egypt. Methods: This multicenter observational retrospective study was carried out on 2500 chronic hepatitis C virus (HCV) infected patients who achieved (SVR) after treatment with direct acting antiviral drugs (DAA). HCV infection was confirmed by positive PCR for HCV RNA infection. SVR was defined as a negative PCR test for HCV-RNA 12 weeks after completion of DAA therapy. Platelets count was measured before therapy, during therapy, at the end of treatment, and 12 weeks after the end of the treatment. Results: There were 2186 patients enrolled in the study; 1866 (85.4%) were treatment naïve. There were 1006 (46%) males and 1180 (54%) females. Mean age was 50.82± 11.66 years, 2142 (98 %.0) patients achieved SVR, 2118 (96.9%) patients had Child -Pugh class A cirrhosis, and 68 (3.1%) had Child -Pugh class B liver cirrhosis. A significant increase of the platelets count was detected at the end of treatment in comparison to the pretreatment levels (P<0.001), and after achieving SVR (P <0.001) when compared to the pretreatment values. Conclusion: Improvement of platelets count occurs after HCV therapy with DAAS in patients with liver cirrhosis. These results suggested that HCV eradication may have a role in improvement of platelet count.

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