Applying machine learning-based multiple imputation methods to nonparametric multiple comparisons in longitudinal clinical studies.

Dependent samples, in which repeated measurements are made on the same subjects, eliminate potential differences among the subjects. In k-dependent samples, missing data can occur for various reasons. The Skillings-Mack test is used instead of the Friedman test for k-dependent samples with missing observations that are non-normally distributed.

A robust chaos-inspired artificial intelligence model for dealing with nonlinear dynamics in wind speed forecasting.

The global impacts of climate change have become increasingly pronounced in recent years due to the rise in greenhouse gas emissions from fossil fuels. This trend threatens water resources, ecological balance, and could lead to desertification and drought. To address these challenges, reducing fossil fuel consumption and embracing renewable energy sources is crucial.

Evaluation of nutritional parameters that may be associated with survival in patients with locally advanced non-small cell lung carcinoma receiving definitive concurrent chemoradiotherapy: retrospective study conducted in a tertiary pulmonary hospital.

Sarcopenia, defined as skeletal muscle loss, is thought to be a hallmark of cancer cachexia. It has an impact on mortality, especially in cancer patients. There are also opposing views regarding the relationship between definitive concurrent chemoradiotherapy (CRT) and sarcopenia in locally advanced lung cancer.

Investigating the impact of discretization techniques on real-time digital control of DC-DC boost converters: A comprehensive analysis.

This paper provides a thorough comparative analysis of discretization techniques commonly utilized in digital control applications for DC-DC boost converters (DBCs). Given the crucial role of DC-DC converters in various industries such as renewable energy systems, electric vehicles, and portable electronic devices, it is imperative to optimize their performance through efficient digital control. This study aims to improve the understanding of the effects of discretization methods on control system behaviour.

Sex Estimation With Three-Dimensional Analysis of the Maxillary Sinus From Computed Tomography Images.

Sex estimation from human skeletal relics is essential in creating an individual's biological profile. This study was performed to examine whether the dimensions and volume of the maxillary sinus can be used to estimate sex. The maxillary sinus's volume, length, width, and height were obtained on the paranasal computed tomography images of 232 adult subjects (116 males and 116 females).

A comprehensive morphometric analysis of pterygospinous and pterygoalar bars on computed tomography images.

This study is aimed to determine the prevalence and morphometric characteristics of the pterygospinous (Ps) and pterygoalar (Pa) bars using computed tomography (CT) images on an extensive study sample of the Anatolian population. The CT images of 700 patients (350 males, 350 females) were analyzed for morphological characteristics and Pa and Ps bars. Ps and Pa bars were classified as complete or incomplete (partial) depending on the degree of ossification.

Performance analysis of digitally controlled nonlinear systems considering time delay issues.

In this paper, a comprehensive investigation into discretization, effective sample time selection considering delays in the system, and time and frequency domain analysis of a DC-DC buck converter, which plays a vital role in photovoltaic (PV) systems, is conducted to enhance the understanding of their dynamic behavior, optimize control algorithms, improve system efficiency, and ensure reliable power conversion in photovoltaic applications. To effectively address the non-linear behavior and enhance digital control of a buck converter by selecting the best sample time, several approaches can be employed. These include accurate modeling and identification of non-linear elements, development of advanced control algorithms that account for non-linearities, implementation of adaptive control techniques, and utilization of feedback mechanisms to compensate for deviations from linearity.

The contribution of PET/CT to the differentiation of benign and malignant pleural effusion in patients with ovarian carcinoma.

Objective: The present study investigates the ability of non-invasive contribution of positron emission tomography (PET)/computed tomography (CT) to distinguish between benign pleural effusions (BPE) and malignant pleural effusions (MPE) in patients diagnosed with ovarian carcinoma (OC).

Material And Methods: Included in the study were 32 OC patients with a PE diagnosis. The cases with BPE and MPE were compared in terms of the PE maximum standardized uptake value (SUVmax), PE SUVmax/mean standardized uptake (SUVmean) value of the mediastinal blood pool (TBRp), the presence of pleural thickening, the presence of supradiaphragmatic lymph node, unilateral or bilateral PE, pleural effusion diameter, patient age and CA125 value.

Investigation of cochlear microphonics recorded with different stimulus types.

Background: Electrocochleography (ECochG), one of the first defined tests under auditory evoked potentials, is a total electrical response of inner and outer hair cells inside the cochlea and auditory nerve record technique to the presence of an acoustic stimulus. These records can be used in Meniere disease and auditory neuropathy spectrum disorder diagnosis, intraoperative monitoring. In addition, the presence of cochlear microphonics plays a crucial role in auditory neuropathy spectrum disorder diagnosis.

Clinical value of metabolic PET parameters of primary vulvar carcinoma.

Purpose: We aim to establish the prognostic value of metabolic parameters of the primary tumor in patients diagnosed with vulvar squamous cell carcinoma (VSCC) who underwent a pretreatment F-18 FDG PET/CT scan.

Materials And Methods: This retrospective study included 47 patients with a histopathologically confirmed diagnosis of VSCC, and who underwent a F-18 FDG PET/CT scan prior to treatment. The disease stage and age at diagnosis, and the maximum standardized uptake value (SUVmax), SUVmean, metabolic tumor volume (MTV) and total lesion glycolysis (TLG) values of the primary tumor, based on a baseline PET scan, were recorded.

Clinical value of metabolic PET parameters of primary vulvar carcinoma.

Purpose: We aim to establish the prognostic value of metabolic parameters of the primary tumor in patients diagnosed with vulvar squamous cell carcinoma (VSCC) who underwent a pretreatment F FDG PET/CT scan.

Materials And Methods: This retrospective study included 47 patients with a histopathologically confirmed diagnosis of VSCC, and who underwent a F FDG PET/CT scan prior to treatment. The disease stage and age at diagnosis, the maximum standardized uptake value (SUVmax), SUVmean, metabolic tumor volume (MTV) and total lesion glycolysis (TLG) values of the primary tumor, based on a baseline PET scan, were recorded.

The role of positron emission tomography/computed tomography in the evaluation of anterior mediastinal masses and differentiating between the histological subtypes of thymic epithelial neoplasms.

Background: This study aims to investigate the role of positron emission tomography/computed tomography in differentiating between benign and malignant anterior mediastinal masses and between the histological subtypes of thymic epithelial neoplasms.

Methods: This retrospective study included a total of 57 patients (30 males, 27 females; mean age 48.9 years; range, 14 to 78 years) who underwent an fluorodeoxyglucose positron emission tomography/ computed tomography with an indication of an anterior mediastinal mass between May 2010 and November 2018.

PET/CT Parameters are Useful in Discrimination of Incidental Benign, Premalignant and Malignant Colonic Lesions.

Aim:  The present study evaluates the role of PET parameters pertaining to incidentally detected foci of colorectal uptake (IFCU) on FDG PET/CT in the differentiation of benign, premalignant and malignant lesions.

Methods:  This retrospective study included 74 patients. The colonoscopic and histopathological findings were regarded as the reference standards.

The prognostic significance of serum CA125 levels with ER, PR, P53 and Ki-67 expression in endometrial carcinomas.

Objectives: The present study evaluates the relationship between the expression levels of hormone receptors (HRs), Ki-67, p53 and serum cancer antigen 125 (CA125) levels in endometrial cancer and clinicopathological risk factors, and determines their prognostic values.

Material And Methods: This retrospective study included 49 patients with endometrial cancer whose estrogen receptor (ER) and progesterone receptor (PR) Ki-67 and p53 expression levels were determined through immunohistochemical methods, and whose preoperative serum CA125 levels were measured. These factors relationship with various clinicopathological factors, progression-free survival (PFS) and overall survival (OS) was investigated.

The prognostic role of PET/CT in small-cell lung cancer.

Objective: The aim in the present study is to determine the prognostic value of metabolic parameters related to the primary tumors detected in pretreatment Fluorine-18 2-fluoro-2-Deoxy-D-glucose (F FDG) positron emission tomography/computerized tomography (PET/CT) scans of patients diagnosed with small-cell lung cancer (SCLC).

Material And Methods: Enrolled in this retrospective study were 63 patients with a histopathologically confirmed diagnosis of SCLC who underwent an F FDG PET/CT scan at baseline. Disease stage, age at diagnosis, gender, albumin level and maximum standardized uptake value (SUVmax), SUVmean, metabolic tumor volume (MTV) and total lesion glycolysis (TLG) values related to the primary tumor at the baseline PET scan were recorded, and the relationship of these factors with progression-free survival (PFS) and overall survival (OS) was evaluated.

Volumetric PET parameters can predict overall survival in advanced lung adenocarcinoma.

Objective: The present study evaluates the prognostic value of metabolic parameters related to the primary tumor on pretreatment F FDG PET/CT in patients with advanced stage lung adenocarcinoma.

Material And Methods: This retrospective study included 258 patients with advanced stage lung adenocarcinoma who underwent pretreatment PET/CT scan, and for whom epidermal growth factor receptor (EGFR)/anaplastic lymphoma kinase (ALK) status was available. The maximum standardized uptake value (SUVmax), SUVmean, metabolic tumor volume (MTV) and total lesion glycolysis (TLG) related to the primary tumor at the baseline PET and various clinical factors were recorded.

Role of F-FDG PET/CT in the detection of primary malignancy in patients with bone metastasis of unknown origin.

Objective: The present study investigates the role of F-FDG PET/CT in the detection of primary malignancy in patients with bone metastasis of unknown primary origin (BMUO).

Material And Methods: This retrospective study considered histopathological examination findings or clinical follow-up data as the standard reference in the diagnosis of primary tumors, and results were compared with results of PET/CT scans.

Results: The study included 100 patients with BMUO (74 males, 26 females, mean age 61 years).

The value of PET/CT in determining lymph node metastasis of endometrial cancer.

Objectives: In our study, the role of fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (F-18 FDG PET/CT) in determining lymph node metastasis of endometrial cancer was evaluated.

Material And Methods: The present retrospectively registered study included 80 patients with endometrial cancer who underwent PET/CT in preoperative period. The patients underwent total hysterectomy with bilateral salpingo-oophorectomy and lymph node dissection.

Prognostic role of PET/CT in endometrial cancer.

Objectives: The present study evaluates the prognostic value of metabolic parameters related to the primary tumor identifiedin preoperative fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) scans inpatients with endometrial cancer (EC).

Material And Methods: This study included 120 patients with EC who underwent PET/CT in the preoperative period. Thepatients' age, maximum standardized uptake value (SUVmax), SUVmean, metabolic tumor volume (MTV) and the totallesion glycolysis (TLG) value of the primary tumor on PET/CT; as well as the stage, histological subtype, grade and size ofthe primary EC; the degree of myometrial invasion (MI) cervical invasion (CI), lymphovascular invasion (LVI), lymph nodemetastasis (LNM) and distant metastasis (DM) were all recorded.

Recurrence Incidence in Differentiated Thyroid Cancers and the Importance of Diagnostic Iodine-131 Scintigraphy in Clinical Follow-up.

Objective: Differentiated thyroid cancers (DTC) are tumors with good prognosis. However, local recurrence or distant metastasis can be observed. In our study, we aimed to investigate the incidence of recurrence and the importance of diagnostic iodine-131 whole body scan (WBS) in clinical follow-up in patients with DTC.

Comparison of alfentanil and remifentanil infusions in combination with propofol for the outpatient extra-corporeal shock wave lithotripsy.

Purpose: The aim of this study is to compare the efficiency of propofol+remifentanil to propofol+alfentanil in reducing pain in patients with urinary system stones undergoing outpatient Extracorporeal Shock Wave Lithotripsy (ESWL).

Methods: In this prospective study, 30 patients, ASA (American Society of Anesthesiologist) I-II, who are 18-60 years old and undergoing Extracorporeal Shock Wave Lithotripsy for urinary system stones were included. Patients were randomly selected for either propofol+remifentanil (Group PR) or propofol+alfentanil treatment (Group PA).

Dexmedetomidine: an alternative for epidural anesthesia in tension-free vaginal-tape surgery.

Purpose: Anesthetic management of tension-free vaginal-tape (TVT) procedures is sometimes difficult to deal with, especially when surgeons request a cough test. Dexmedetomidine has unique sedative and analgesic properties while having minimal respiratory effects, making it suitable for perioperative use in monitored anesthesia care. We aimed to compare dexmedetomidine and epidural anesthesia in TVT patients.

Efficacy of different concentrations of sevoflurane administered through a face mask for magnetic resonance imaging in children.

Background: The main aim of this study was to use a non-invasive method such as a face mask to maintain anesthesia in children during magnetic resonance imaging (MRI). The secondary aim was to ascertain hemodynamic-respiration parameters, recovery time and complications of anesthesia with the administration of different concentrations of sevoflurane.

Methods: This prospective and randomized study included 96 ASA I-II children, aged 1-10, scheduled to undergo MRI with anesthesia with sevoflurane through a face mask.