TY  - JOUR
TT  - Determining of Gastroparesis Disease from Electrogastrogram Signals Using Cramer-Rao Lower Bound and Power Spectral Density
AU  - Altıntop, Çiğdem Gülüzar
AU  - Latifoğlu, Fatma
AU  - Çelikzencir, Emre
AU  - Can Sezgin, Gülten
AU  - Yurci, Mustafa Alper
PY  - 2017
DA  - March
JF  - IU-Journal of Electrical & Electronics Engineering
PB  - İstanbul University-Cerrahpasa
WT  - DergiPark
SN  - 1303-0914
SP  - 3065
EP  - 3073
VL  - 17
IS  - 1
KW  - Gastroparesis
KW  - Electrogastrogram
KW  - Cramer-Rao Lower Bound
KW  - Autoregressive Parameter
KW  - Power Spectral Density
N2  - Gastroparesis is a chronic disease of stomachmobility, defined as delay in the emptying of food from the stomach withoutmechanical obstruction. Various methods are used for the diagnosisof gastroparesis and scintigraphy method is accepted as the gold standard. Inthis study, Electrogastrogram (EGG) signals were obtained from gastroparesispatients and healthy volunteers using cutaneous electrodes. Unlike the methodsused in the frequency analysis of EGG signals in the literature, parametricmethods have been used in this study and the selection of the method to be usedhas not been determined intuitively, it has been determined by mathematicalcalculations. Cramer-Rao Lower Bound (CRLB) method has been used to determinewhich method should be used for obtaining Power Spectral Density (PSD). Using selectedparameter estimation method, PSD graphs were obtained. Several features were extractedfrom the PSD graphs and they were utilized to differentiate patient and healthygroups. Asa result, features that can classify EGG signals from gastroparesis patientsand healthy subjects, have been obtained. Best electrode placement that can beused for this disease has been achieved succesfully.
CR  - [1]	R.M. Stern, K.L. Koch, W.R. Stewart, MW. Vasey, “Electrogastrography: current issues in validation and methodology”, Psychophysiology, vol. 24, pp. 55–64, 1987.
CR  - [2]	R.D. Rothstein, A. Alavi, J.C. Reynolds, “Electrogastrography in patients with gastroparesis and effect of longterm cisapride”, Digestive Diseases and Sciences, vol. 38, pp.1518-1524, 1993.
CR  - [3]	 J.D. Chen, Z. Lin, J. Pan, R.W. McCallum, “Abnormal gastric myoelectrical activity and delayed gastric emptying in patients with symptoms suggestive of gastroparesis”, Digestive Diseases and Sciences, vol. 41, no. 8, pp. 1538-1545,1996.
UR  - https://dergipark.org.tr/en/pub/iujeee/issue//288792
L1  - https://dergipark.org.tr/en/download/article-file/271979
ER  -