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1.
Tomography ; 10(2): 215-230, 2024 Feb 05.
Article in English | MEDLINE | ID: mdl-38393285

ABSTRACT

Diagnosing and screening for diabetic retinopathy is a well-known issue in the biomedical field. A component of computer-aided diagnosis that has advanced significantly over the past few years as a result of the development and effectiveness of deep learning is the use of medical imagery from a patient's eye to identify the damage caused to blood vessels. Issues with unbalanced datasets, incorrect annotations, a lack of sample images, and improper performance evaluation measures have negatively impacted the performance of deep learning models. Using three benchmark datasets of diabetic retinopathy, we conducted a detailed comparison study comparing various state-of-the-art approaches to address the effect caused by class imbalance, with precision scores of 93%, 89%, 81%, 76%, and 96%, respectively, for normal, mild, moderate, severe, and DR phases. The analyses of the hybrid modeling, including CNN analysis and SHAP model derivation results, are compared at the end of the paper, and ideal hybrid modeling strategies for deep learning classification models for automated DR detection are identified.


Subject(s)
Deep Learning , Diabetes Mellitus , Diabetic Retinopathy , Humans , Diabetic Retinopathy/diagnostic imaging , Diagnosis, Computer-Assisted/methods , Benchmarking , Computers
2.
Turk J Pediatr ; 53(6): 684-6, 2011.
Article in English | MEDLINE | ID: mdl-22389992

ABSTRACT

Subglottic cysts are rare causes of stridor in infancy and should be suspected in the case of intubation. A 15-month-old male presented with recurrent stridor and respiratory distress. Prematurity and intubation were present in his history. Two subglottic cysts below the glottis were diagnosed. The cysts were ruptured by flexible bronchoscopy. The child's stridor and other symptoms disappeared thereafter. Early diagnosis of subglottic cysts is important since the obstruction can be relieved by rupturing the cysts with bronchoscope, whereas development of a fibrotic stenosis may require a tracheotomy, with its attending morbidity.


Subject(s)
Cysts/diagnosis , Laryngeal Diseases/diagnosis , Respiratory Insufficiency/etiology , Respiratory Sounds/etiology , Cysts/complications , Cysts/therapy , Glottis , Humans , Infant , Laryngeal Diseases/complications , Laryngeal Diseases/therapy , Male
3.
Pediatr Int ; 51(5): 661-5, 2009 Oct.
Article in English | MEDLINE | ID: mdl-19419517

ABSTRACT

BACKGROUND: Croup, which is seen commonly in childhood, is a disorder that can be recurrent and progress to bronchial asthma. In the present study the prevalence of gastroesophageal reflux (GER) and atopy and the response to therapy were investigated in children with recurrent croup. METHODS: Between October 2003 and June 2004, 57 patients with acute stridor were admitted to the emergency room. The patients who had at least three croup episodes and patients with first croup episode were compared. RESULTS: Thirty-two children had recurrent croup history, GER was found in of 62.5%, and atopy in 17.2%. Atopy was not found in any children with first croup episode. The difference was significant. In addition it was found that atopic dermatitis, previous history of wheezing and established atopy increased the risk of croup recurrence. Alone or combined inhaled corticosteroids and GER therapy were administered, and 77.7% of the patients responded very well. CONCLUSION: GER and atopy should be investigated in patients with recurrent spasmodic croup. Recurrent croup is a non-specific manifestation of atopy. Patients with atopy should be followed closely for developing bronchial asthma.


Subject(s)
Croup/epidemiology , Gastroesophageal Reflux/epidemiology , Hypersensitivity, Immediate/epidemiology , Child, Preschool , Comorbidity , Croup/diagnosis , Croup/drug therapy , Female , Gastroesophageal Reflux/diagnosis , Gastroesophageal Reflux/drug therapy , Humans , Hypersensitivity, Immediate/diagnosis , Infant , Male , Recurrence , Risk Factors , Treatment Outcome
5.
Tuberk Toraks ; 53(2): 167-71, 2005.
Article in Turkish | MEDLINE | ID: mdl-16100654

ABSTRACT

Idiopathic chronic eosinophilic pneumonia (ICEP) is a rare cause of chronic lung disease in children and adolescents. We described four-years old boy presenting with recurrent pneumonia and symptoms of bronchial asthma. Because of peripheral eosinophilia and bilateral pulmonary infiltrates patient investigated comprehensive and chronic eosinophilic pneumonia determined histopathologically. Other conditions causing eosinophilic pneumonia were ruled out. He showed a dramatic response to oral corticosteroid therapy. This report emphasizes that ICEP should be considered in pediatric age group on a cause for chronic hypoxemi or intractable symptoms of respiratory system.


Subject(s)
Pulmonary Eosinophilia/diagnosis , Adrenal Cortex Hormones/administration & dosage , Asthma/etiology , Child , Diagnosis, Differential , Humans , Male , Pulmonary Eosinophilia/complications , Pulmonary Eosinophilia/diagnostic imaging , Pulmonary Eosinophilia/drug therapy , Pulmonary Eosinophilia/pathology , Tomography, X-Ray Computed
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