Publications by authors named "Omer Turk"

Article Synopsis
  • Cancer poses a major public health challenge, with lung and colon cancers making up over 25% of cases; this study focuses on improving detection rates for these cancers.
  • An automated diagnosis system is designed using a 2D Gaussian filter for image pre-processing and employs three CNN models—MobileNet, VGG16, and ResNet50—to classify five cancer types from a dataset of 25,000 images.
  • The system demonstrates a remarkable diagnostic accuracy of 99.38%, highlighting its potential for early detection, which could lead to timely treatment and better patient outcomes.
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Although there are many treatment options available for depression, a large portion of patients with depression are diagnosed with treatment-resistant depression (TRD), which is characterized by an inadequate response to antidepressant treatment. Identifying the TRD population is crucial in terms of saving time and resources in depression treatment. Recently several studies employed various methods on EEG datasets for automatic depression detection or treatment outcome prediction.

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Introduction: We aimed to develop a diagnostic deep learning model using contrast-enhanced CT images and to investigate whether cervical lymphadenopathies can be diagnosed with these deep learning methods without radiologist interpretations and histopathological examinations.

Material Method: A total of 400 patients who underwent surgery for lymphadenopathy in the neck between 2010 and 2022 were retrospectively analyzed. They were examined in four groups of 100 patients: the granulomatous diseases group, the lymphoma group, the squamous cell tumor group, and the reactive hyperplasia group.

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Today, as in every life-threatening disease, early diagnosis of brain tumors plays a life-saving role. The brain tumor is formed by the transformation of brain cells from their normal structures into abnormal cell structures. These formed abnormal cells begin to form in masses in the brain regions.

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Bipolar disorder (BD) is a mental disorder characterized by depressive and manic or hypomanic episodes. The complexity in the diagnosis of Bipolar disorder (BD) due to its overlapping symptoms with other mood disorders prompted researchers and clinicians to seek new and advanced techniques for the precise detection of Bipolar disorder (BD). One of these methods is the use of advanced machine learning algorithms such as deep learning (DL).

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Automatic detection of Attention Deficit Hyperactivity Disorder (ADHD) based on the functional Magnetic Resonance Imaging (fMRI) through Deep Learning (DL) is becoming a quite useful methodology due to the curse of-dimensionality problem of the data is solved. Also, this method proposes an invasive and robust solution to the variances in data acquisition and class distribution imbalances. In this paper, a transfer learning approach, specifically ResNet-50 type pre-trained 2D-Convolutional Neural Network (CNN) was used to automatically classify ADHD and healthy children.

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Article Synopsis
  • Anxiety is a significant contributor to hypertension and can impact surgery outcomes; this study aimed to see if showing patients the operating room ahead of time could help reduce anxiety and improve their health measures.
  • Ninety patients with hypertension were split into two groups, one that toured the operating room before surgery (Group STOR) and another that did not (Group No STOR).
  • Results showed that Group STOR had lower anxiety scores, blood pressure, and heart rates on the day of surgery than Group No STOR, leading to fewer postponed surgeries and higher patient satisfaction.
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The studies implemented with Electroencephalogram (EEG) signals are progressing very rapidly and brain computer interfaces (BCI) and disease determinations are carried out at certain success rates thanks to new methods developed in this field. The effective use of these signals, especially in disease detection, is very important in terms of both time and cost. Currently, in general, EEG studies are used in addition to conventional methods as well as deep learning networks that have recently achieved great success.

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