S Kara

Summary

Affiliation: Erciyes University
Country: Turkey

Publications

  1. ncbi request reprint Low-cost instrumentation for the diagnosis of Hirschsprung's disease
    Sadik Kara
    Erciyes University, Department of Electronic Engineering, Biomedical Engineering Group, 38039 Kayseri, Turkey
    J Med Syst 27:157-62. 2003
  2. ncbi request reprint Medical application of artificial immune recognition system (AIRS): diagnosis of atherosclerosis from carotid artery Doppler signals
    Fatma Latifoğlu
    Department of Electronics Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 37:1092-9. 2007
  3. ncbi request reprint Spectral analysing of portal vein Doppler signals in the cirrhosis patients
    Semra Içer
    Department of Biomedical Devices Technology, Erciyes University, Kayseri 38039, Turkey
    Comput Biol Med 37:1303-7. 2007
  4. ncbi request reprint Pattern detection of atherosclerosis from carotid artery doppler signals using fuzzy weighted pre-processing and Least Square Support Vector Machine (LSSVM)
    Kemal Polat
    Department of Electrical and Electronics Engineering, Selcuk University, 42075, Konya, Turkey
    Ann Biomed Eng 35:724-32. 2007
  5. ncbi request reprint Medical diagnosis of atherosclerosis from Carotid Artery Doppler Signals using principal component analysis (PCA), k-NN based weighting pre-processing and Artificial Immune Recognition System (AIRS)
    Fatma Latifoğlu
    Erciyes University, Department of Electronics Engineering, 38039 Kayseri, Turkey
    J Biomed Inform 41:15-23. 2008
  6. ncbi request reprint Neural network-based diagnosing for optic nerve disease from visual-evoked potential
    Sadik Kara
    Department of Electrical and Electronics Eng, Erciyes University, 38039 Kayseri, Turkey
    J Med Syst 31:391-6. 2007
  7. ncbi request reprint Classification of macular and optic nerve disease by principal component analysis
    Sadik Kara
    Department of Electronics Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 37:836-41. 2007
  8. ncbi request reprint Detection of atherosclerosis using autoregressive modelling and principles component analysis to carotid artery Doppler signals
    Sadik Kara
    Erciyes University, Department of Electrical Electronics Engineering, 38039 Kayseri, Turkey
    Biomed Mater Eng 16:269-77. 2006
  9. ncbi request reprint Low-cost compact ECG with graphic LCD and phonocardiogram system design
    Sadik Kara
    Erciyes University, Department of Electronics Engineering, Kayseri, Turkey
    J Med Syst 30:205-9. 2006
  10. ncbi request reprint Utilization of artificial neural networks in the diagnosis of optic nerve diseases
    Sadik Kara
    Department of Electrical and Electronics Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 36:428-37. 2006

Detail Information

Publications33

  1. ncbi request reprint Low-cost instrumentation for the diagnosis of Hirschsprung's disease
    Sadik Kara
    Erciyes University, Department of Electronic Engineering, Biomedical Engineering Group, 38039 Kayseri, Turkey
    J Med Syst 27:157-62. 2003
    ..This designed system was successful enough to perform manometric recording of RAIR in the anorectal ampulla of rabbits and rats...
  2. ncbi request reprint Medical application of artificial immune recognition system (AIRS): diagnosis of atherosclerosis from carotid artery Doppler signals
    Fatma Latifoğlu
    Department of Electronics Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 37:1092-9. 2007
    ..AIRS has reached 99.29% classification accuracy using 10-fold cross validation. Results show that the proposed method classified Doppler signals successfully...
  3. ncbi request reprint Spectral analysing of portal vein Doppler signals in the cirrhosis patients
    Semra Içer
    Department of Biomedical Devices Technology, Erciyes University, Kayseri 38039, Turkey
    Comput Biol Med 37:1303-7. 2007
    ..Clear differences were detected in the calculated parameters between healthy and cirrhosis patients. It was seen that power spectral graphics and sonograms of portal vein Doppler signals may be used to determine cirrhosis disease...
  4. ncbi request reprint Pattern detection of atherosclerosis from carotid artery doppler signals using fuzzy weighted pre-processing and Least Square Support Vector Machine (LSSVM)
    Kemal Polat
    Department of Electrical and Electronics Engineering, Selcuk University, 42075, Konya, Turkey
    Ann Biomed Eng 35:724-32. 2007
    ..The employed expert system has achieved 100% classification accuracy using a 10-fold Cross Validation (CV) method...
  5. ncbi request reprint Medical diagnosis of atherosclerosis from Carotid Artery Doppler Signals using principal component analysis (PCA), k-NN based weighting pre-processing and Artificial Immune Recognition System (AIRS)
    Fatma Latifoğlu
    Erciyes University, Department of Electronics Engineering, 38039 Kayseri, Turkey
    J Biomed Inform 41:15-23. 2008
    ..Hundred percent of classification accuracy has been obtained by the proposed system using 10-fold cross validation. This success shows that the proposed system is a robust and effective system in diagnosis of atherosclerosis disease...
  6. ncbi request reprint Neural network-based diagnosing for optic nerve disease from visual-evoked potential
    Sadik Kara
    Department of Electrical and Electronics Eng, Erciyes University, 38039 Kayseri, Turkey
    J Med Syst 31:391-6. 2007
    ..The stated results show that the proposed method could point out the ability of design of a new intelligent assistance diagnosis system...
  7. ncbi request reprint Classification of macular and optic nerve disease by principal component analysis
    Sadik Kara
    Department of Electronics Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 37:836-41. 2007
    ..The stated results show that the use of PCA of physiological waveforms is presented as a powerful method likely to be incorporated in future medical signal processing...
  8. ncbi request reprint Detection of atherosclerosis using autoregressive modelling and principles component analysis to carotid artery Doppler signals
    Sadik Kara
    Erciyes University, Department of Electrical Electronics Engineering, 38039 Kayseri, Turkey
    Biomed Mater Eng 16:269-77. 2006
    ....
  9. ncbi request reprint Low-cost compact ECG with graphic LCD and phonocardiogram system design
    Sadik Kara
    Erciyes University, Department of Electronics Engineering, Kayseri, Turkey
    J Med Syst 30:205-9. 2006
    ..Thus, the patient knows and hears heart sounds him/herself and is acquainted by doctor about healthy condition...
  10. ncbi request reprint Utilization of artificial neural networks in the diagnosis of optic nerve diseases
    Sadik Kara
    Department of Electrical and Electronics Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 36:428-37. 2006
    ..Testing results were found to be compliant with the expected results that are derived from the physician's direct diagnosis. The end benefit would be to assist the physician to make the final decision without hesitation...
  11. ncbi request reprint Detection of gastric dysrhythmia using WT and ANN in diabetic gastroparesis patients
    Sadik Kara
    Department of Electrical and Electronics Engineering, Erciyes University, Engineering Faculty Biomedical Engineering Group, 38039 Kayseri, Turkey
    Comput Biol Med 36:276-90. 2006
    ..So we developed a new method for classification of EGG based on DWT and ANN...
  12. ncbi request reprint Training a learning vector quantization network using the pattern electroretinography signals
    Sadik Kara
    Erciyes University, Department of Electrical and Electronics Engineering, 38039 Kayseri, Turkey
    Comput Biol Med 37:77-82. 2007
    ..Testing results were found to be compliant with the expected results that are derived from the physician's direct diagnosis. The end benefit would be to assist the physician to make the final decision without hesitation...
  13. ncbi request reprint Imaging system for visualization and numerical analysis of cancer at stomach and skin tissues
    Sadik Kara
    Electronics Engineering Department, Erciyes University, Kayseri, Turkey
    J Med Syst 29:179-85. 2005
    ..Image processing techniques are performed on the digitized images of stomach and skin tissues, in order to derive the number of cells, area of an individual cell, and average area of the cells in a certain size of an image window...
  14. ncbi request reprint Comparison of fast Fourier transformation and autoregressive modelling as a diagnostic tool in analysis of lower extremity venous signals
    Sadik Kara
    Department of Electrical Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 36:484-94. 2006
    ..Analysis of ARM-based venous sonograms and power spectral density graphs revealed that FFT should not be used in signals with high power spectral density levels and low-frequency bandwidth within limited segments of time...
  15. ncbi request reprint Utilization of artificial neural networks and autoregressive modeling in diagnosing mitral valve stenosis
    Sadik Kara
    Department of Electronics Engineering, Biomedical Eng Group, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 36:473-83. 2006
    ..The designed classification structure has about 97.3% sensitivity, 90.3% specifity and positive prediction is calculated to be 92.3%. The stated results show that the proposed method can make an effective interpretation...
  16. ncbi request reprint Sphincter muscle stimulator to be used before treating anal atresia
    Sadik Kara
    Department of Electronic Engineering, Biomedical Engineering Group, Erciyes University, 38039 Kayseri, Turkey
    J Med Syst 27:475-8. 2003
    ..On average, about 140 mA was enough to stimulate the muscle when probes were applied over the skin. On the other hand, with the placement of probes beneath the skin, stimulation was obtained for pulse amplitude of 40 mA...
  17. ncbi request reprint Investigation of a new heart contractility power parameter
    Sadik Kara
    Electronics Engineering Department, Erciyes University, 38039 Kayseri, Turkey
    Comput Methods Programs Biomed 76:177-80. 2004
    ....
  18. ncbi request reprint Portable stimulator design aimed at differentiating facial nerves from normal tissues
    S Kara
    Department of Electronic Engineering Biomedical Engineering Group Erciyes University, 38039, Kayseri, Turkey
    J Med Syst 28:177-82. 2004
    ..05-1 sec pulse interval. The main benefits of our stimulator are its graphic display that shows the form of pulse, its compact size, and operation on a battery power supply and adaptability to convert to other stimulation applications...
  19. ncbi request reprint Classification of carotid artery Doppler signals in the early phase of atherosclerosis using complex-valued artificial neural network
    Murat Ceylan
    Selcuk University, Department of Electronics Engineering, 42075 Konya, Turkey
    Comput Biol Med 37:28-36. 2007
    ..These results shown that PCA-CVANN and FCM-CVANN classified Doppler signals successfully...
  20. ncbi request reprint Usage of a novel, similarity-based weighting method to diagnose atherosclerosis from carotid artery Doppler signals
    Kemal Polat
    Department of Electrical and Electronics Engineering, Selcuk University, 42075 Konya, Turkey
    Med Biol Eng Comput 46:353-62. 2008
    ..These results show that SBWM has produced very promising results in the classification of atherosclerosis from carotid artery Doppler signals. In future, we will use a larger dataset to test the proposed method...
  21. doi request reprint Ensemble adaptive network-based fuzzy inference system with weighted arithmetical mean and application to diagnosis of optic nerve disease from visual-evoked potential signals
    Bayram Akdemir
    Selcuk University, Department of Electrical and Electronics Engineering, 42075 Konya, Turkey
    Artif Intell Med 43:141-9. 2008
    ..The aim of this study is to improve the classification accuracy of ANFIS classifier on diagnosis of optic nerve disease from VEP signals. With this aim, a new classifier ensemble based on ANFIS and PCA is proposed...
  22. ncbi request reprint Comparison of short-time Fourier transform and Eigenvector MUSIC methods using discrete wavelet transform for diagnosis of atherosclerosis
    Fatma Latifoğlu
    Department of Biomedical Engineering, Erciyes University, 38039 Kayseri, Turkey
    J Med Syst 33:189-97. 2009
    ..Furthermore, it is concluded that the power of Eigenvector-MUSIC method in terms of the resolution of the high frequencies is better than that of the STFT methods...
  23. doi request reprint Application of complex discrete wavelet transform in classification of Doppler signals using complex-valued artificial neural network
    Murat Ceylan
    Selcuk University, Department of Electrical and Electronics Engineering, Engineering and Architecture Faculty, 42075 Konya, Turkey
    Artif Intell Med 44:65-76. 2008
    ..This paper presents two different structures formed using feature extraction algorithms to decrease size of feature set in training and test data...
  24. ncbi request reprint The effect of generalized discriminate analysis (GDA) to the classification of optic nerve disease from VEP signals
    Ayşegül Güven
    Department of Electronics, Civil Aviation College, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 38:62-8. 2008
    ..75% classification accuracies have been obtained using the above algorithms, respectively. These results show that the GDA pre-processing method has produced very promising results in diagnosis of optic nerve disease from VEP signals...
  25. ncbi request reprint Comparison of the autoregressive modeling and fast Fourier transformation in demonstrating Doppler spectral waveform changes in the early phase of atherosclerosis
    Fatma Dirgenali
    Graduate Student, Department of Electrical Engineering, Kayseri 38039, Turkey
    Comput Biol Med 35:57-66. 2005
    ..AR has especially revealed an outstanding difference in the calculation for frequency level of maximum power spectral density...
  26. ncbi request reprint Discontinuous doppler signals simulating respiratory misregistration: effect on autoregressive frequency spectra
    Semra Kemaloglu
    Department of Biomedical Devices Technology, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 36:465-72. 2006
    ..The signal duration of the signal had no significant effect on the statistical stability of the frequency level...
  27. ncbi request reprint Correlation- and covariance-supported normalization method for estimating orthodontic trainer treatment for clenching activity
    B Akdenur
    Department of Electrical and Electronics Engineering, Selcuk University, Konya, Turkey
    Proc Inst Mech Eng H 223:991-1001. 2009
    ..The results show that the CCSNM was the best normalization method among other normalization methods for estimating the effect of the trainer...
  28. doi request reprint Utilization of Discretization method on the diagnosis of optic nerve disease
    Kemal Polat
    Selcuk University, Department of Electrical and Electronics Engineering, 42075 Konya, Turkey
    Comput Methods Programs Biomed 91:255-64. 2008
    ..The obtained results denote that the proposed method can make an effective interpretation and point out the ability of design of a new intelligent assistance diagnosis system...
  29. ncbi request reprint Determining fractal dimension of umbilical artery Doppler signals using Hurst exponent
    Fatma Latifoğlu
    Department of Electrical Electronics Engineering, Erciyes University, 38039 Kayseri, Turkey
    J Med Syst 31:529-36. 2007
    ..ROC curve for PSD(HURST) index was calculated as 0.97. According to this result, PSD(HURST) index is more sensitive to detect the blood flow changing than traditional Doppler indexes...
  30. ncbi request reprint A new supervised classification algorithm in artificial immune systems with its application to carotid artery Doppler signals to diagnose atherosclerosis
    Seral Ozşen
    Selcuk University, Department of Electrical and Electronics Engineering, 42075, Konya, Turkey
    Comput Methods Programs Biomed 88:246-55. 2007
    ..With this study and other possible contributions to AIS, classification algorithms with effective performances can be developed and potential of AIS in classification can be further revealed...
  31. ncbi request reprint Complex-valued wavelet artificial neural network for Doppler signals classifying
    Yüksel Ozbay
    Selcuk University, Department of Electronics Engineering, 42075 Konya, Turkey
    Artif Intell Med 40:143-56. 2007
    ..CVWANN was implemented on four different structures (CVWANN-1, -2, -3 and -4)...
  32. ncbi request reprint Estimation of wavelet and short-time Fourier transform sonograms of normal and diabetic subjects' electrogastrogram
    Fatma Dirgenali
    Department of Electrical Engineering, Erciyes University, 38039 Kayseri, Turkey
    Comput Biol Med 36:1289-302. 2006
    ..And also, due to the fact that the WT method does not suffer from some intrinsic problems that affect the STFT method, one can see that the WT method can help improve the quality of the sonogram of the EGG signals...
  33. doi request reprint Use of kernel functions in artificial immune systems for the nonlinear classification problems
    Seral Ozşen
    Department of Electrical and Electronics Engineering, Selcuk University, Konya 42075, Turkey
    IEEE Trans Inf Technol Biomed 13:621-8. 2009
    ..09% classification success for the Doppler dataset. With these results, our system seems to be a potential solution method, and it may be considered as a suitable method for hard nonlinear classification problems...