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Showing 3 results for Tohidi

Abdoljalal Marjani, Gholam Reza Vaghari, Farideh Tohidi,
Volume 7, Issue 1 (Spring 2004)
Abstract


Mahdi Tohidipour, Amir Aboulfazl Suratgar, Mohammad Reza Arab, Ali Reza Rezaei Ashtaini,
Volume 16, Issue 1 (4-2013)
Abstract

Background: The general method for paraclinic diagnosis of epilepsy is electroencephalography that is performed by visual analysis by experienced neurologist. However, due to false detection and impossibility of evaluating electrodes and brain areas coherence, it is not uniquely used for seizure detection. In recent years, Quantitative Electroencephalogram (QEEG) has become a strong instrument for detection of brain disorders. Hence, studies in the field of EEG performance improvement and brain mapping images analysis corresponding to new methods that contain 2-D and 3-D output images and automatic epilepsy diagnosis are necessary.

Materials and Methods: In this cross-sectional study, through extracting epilepsy feature by computing the energy of each EEG channel, brain map pattern of each patient was plotted using cubic interpolation and generalized and partial patterns and potential center of epilepsy were diagnosed by LVQ artificial neural network using image processing combination methods.

Results: In the proposed algorithm, 11 epilepsy brain mapping patterns, including 1 generalized and 10 partial seizure patterns, were automatically diagnosed.

Conclusion: Since seizure detection in the EEG signals is a complex procedure and the number of expert neurologists is small, this schema can be used for epilepsy diagnosis as an intelligent diagnosis method so that generalization of this method can help detect various brain disorders.


Seyed Abolhassan Seyed Zadeh, Mohammad Reza Tohidi, Ahmad Reza Niki Bakhsh, Hashem Mahmood Zadeh, Hossein Emad Momtaz, Reza Dalirani, Farshid Kompany, Akram Soleymani,
Volume 16, Issue 2 (5-2013)
Abstract

Background: Idiopathic nephritic syndrome (INS) is one of the chronic illnesses in children. Therefore, clinical and laboratory factors that influence the clinical course of this disease are very important. Among these factors, low birthweight due to reduction of the number of congenital nephrons and subsequent glomerular hyperfiltration has been postulated as an important factor. This study was conducted to evaluate the clinical course of INS in patients with lowbirth weight in comparison to patients with normal birth weight.

Materials and Methods: In this descriptive-analytic study, 170 children with INS were selected from hospitals in Kermanshah, Urmia, Hamedan, Qazvin, and Ahvaz and divided into two groups of low birth weight (<2500gr) and normal birth weight (>2500gr). Then, the clinical course of these patients was evaluated by reviewing their medical records.

Results: Of the 170 patients, 22 had low birth weight and 148 had normal birthweight. Statistical analysis revealed no correlation between low birth weight and INS course except for age of presentation (P=0.014).

Conclusion: According to the results of this study, there is not any correlation between body birth weight and the clinical course of INS except for age of presentation.



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