@InProceedings{SantosBarrMacaGodo:2013:ImTeSe,
               author = "Santos, Laurita dos and Barroso, Joaquim Jos{\'e} and Macau, 
                         Elbert E. N. and Godoy, Moacir F. de",
          affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Impact of the temporal series length on the Heart Rate Variability 
                         analysis of congestive heart failure / Impacto da extens{\~a}o 
                         das s{\'e}ries temporais na an{\'a}lise da Variabilidade da 
                         Freq{\"u}{\^e}ncia Card{\'{\i}}aca em pacientes com falha 
                         card{\'{\i}}aca congestiva",
            booktitle = "Anais...",
                 year = "2013",
                pages = "279--281",
         organization = "Congresso Brasileiro de F{\'{\i}}sica M{\'e}dica, 18.",
            publisher = "Associa{\c{c}}{\~a}o Brasileira de F{\'{\i}}sica M{\'e}dica",
                 note = "Setores de Atividade: Fabrica{\c{c}}{\~a}o de equipamentos de 
                         inform{\'a}tica, produtos eletr{\^o}nicos e {\'o}pticos.",
             keywords = "time series, heart rate variability, heart rate variability, 
                         Poincar{\'e} plot, length of time series, congestive heart 
                         failure, variabilidade da freq{\"u}{\^e}ncia card{\'{\i}}aca, 
                         gr{\'a}fico de Poincar{\'e}, comprimento das s{\'e}ries 
                         temporais, falha card{\'{\i}}aca congestiva.",
             abstract = "Heart Rate Variability has been reported as a very simple and 
                         adequate methodology to evaluate the homeostasis of an individual. 
                         It can easily be measured by recording the RR interval from a 
                         heart generated signal, which can be performed by a noninvasive 
                         procedure with, for example, Holter or Polar cardiac monitors. In 
                         this work it is determined by using Poincar{\'e} plot parameters 
                         the shortest size a time series of RR intervals should have to 
                         statistically represent the measured data of longer series. The 
                         results show that series with 250 RR intervals maintain very good 
                         correlation (for SD1 and SD2) when compared with series containing 
                         up to 75,000 intervals. For the ratio SD1/SD2 the correlations are 
                         kept high up to series with 5,000 intervals. Resumo. A 
                         Variabilidade da Freq{\"u}{\^e}ncia Card{\'{\i}}aca (VFC) 
                         {\'e} uma medida simples para avaliar a homeostase de um 
                         indiv{\'{\i}}duo. A VFC facilmente pode ser medida pela 
                         varia{\c{c}}{\~a}o dos intervalos RR captados do 
                         cora{\c{c}}{\~a}o, atrav{\'e}s de um procedimento n{\~a}o 
                         invasivo, por exemplo, monitores Holter ou Polar. Nesse trabalho, 
                         determinamos os par{\^a}metros do gr{\'a}fico de Poincar{\'e} 
                         para a menor s{\'e}rie temporal de intervalos RR que pode 
                         representar estatisticamente a mesma s{\'e}rie temporal em 
                         tamanho maior. Os resultados mostram que s{\'e}ries temporais com 
                         250 intervalos RR mant{\'e}m uma boa correla{\c{c}}{\~a}o (para 
                         SD1 e SD2) comparados a s{\'e}ries com 75.000 intervalos. Para a 
                         raz{\~a}o SD1/SD2 as correla{\c{c}}{\~o}es s{\~a}o altas 
                         somente para s{\'e}ries com mais de 5.000 intervalos.",
  conference-location = "S{\~a}o Pedro",
      conference-year = "12 -15 ago. 2013",
                label = "lattes: 5240243263075069 2 SantosBarrMacaGodo:2013:ImTeSe",
             language = "en",
           targetfile = "COSINAISI1.pdf",
                  url = "http://www.abfm.org.br/xviiicbfm",
        urlaccessdate = "15 jun. 2024"
}