Aspects of Identity Questionnaire-IV: An Examination of Structural Validity, Gender Invariance, and Relationships with Mental Health and Basic Psychological Needs Among Adolescents.

The present research evaluated evidence for structural and convergent validity and measurement invariance across gender of the Aspects of Identity Questionnaire-IV (AIQ-IV), which is designed to measure four identity orientations: Personal, Relational, Public, and Collective. We recruited two independent samples of Serbian adolescents aged 15-19 years ( = 436, = 452). Both exploratory structural equation modeling (ESEM) and confirmatory factor analyses (CFA) were applied to examine the factor structure of the AIQ-IV.

Performance and Dimensionality of Pretreatment MRI Radiomics in Rectal Carcinoma Chemoradiotherapy Prediction.

(1) Background: This study aimed to develop a machine learning model based on radiomics of pretreatment magnetic resonance imaging (MRI) 3D T2W contrast sequence scans combined with clinical parameters (CP) to predict neoadjuvant chemoradiotherapy (nCRT) response in patients with locally advanced rectal carcinoma (LARC). The study also assessed the impact of radiomics dimensionality on predictive performance. (2) Methods: Seventy-five patients were prospectively enrolled with clinicopathologically confirmed LARC and nCRT before surgery.

The role of basic psychological needs in the relationships between identity orientations and adolescent mental health: A protocol for a longitudinal study.

Research into the role of identity orientations (the relative importance an individual places on different personal and social attributes and characteristics when defining her or his identity) in adolescent mental health is extremely limited. Furthermore, the potential mechanisms that might explain the associations between identity orientations and adolescent mental health are poorly understood. This study protocol describes a one-year longitudinal study across three time points to be initiated with the purpose of investigating the mediating role of basic psychological needs satisfaction and frustration in the relationship between identity orientations and various mental health indicators in adolescence.

Acute chemoradiotherapy toxicity in cervical cancer patients.

During radiotherapy treatment for cervical cancer, up to 84% of patients exhibit some form of acute radiation toxicity (ART). The primary aim of this clinical study is to determine the impact of angiotensin-converting enzyme (ACE) inhibitors, β-blockers and other risk factors such as the patient's anatomical characteristics on ART emergence in patients with locally advanced cervical cancer treated by chemoradiotherapy. This is a combination of two nested case-control studies within the cohort of patients with locally advanced cervical cancer based on the analysis of potential risk factors for the onset of ART in patients treated with 3D conformal radiotherapy (3D-CRT) and 2D conventional radiotherapy (2D-RT), prospectively followed up from January 2017 to September 2018 in a tertiary care hospital.

3D MRI-based evaluation of the 2D brachytherapy planning in patients with advanced cervical cancer: An analysis of the delivered dose.

Purpose: To analyze the dose distribution achieved during 2D radiography-based brachytherapy (BRT) planning, by using a 3D MRI-based BRT replanning evaluation, in patients with advanced cervical carcinoma, treated with definitive concomitant chemoradiation (CCRT).

Methods: The curative CCRT was applied to 30 patients with advanced cervical carcinoma. For each patient, 2D radiography-based planning and a 3D MRI-based BRT replanning were performed.

Acute toxicity of postoperative intensity-modulated radiotherapy and three-dimensional conformal radiotherapy for cervical cancer: The role of concomitant chemotherapy.

Purpose: The toxicity of postoperative radiotherapy for cervical cancer affects patients' quality of life. We evaluated acute toxicity in postoperative intensity-modulated radiotherapy (IMRT) and three-dimensional conformal radiotherapy (3DCRT) as well as the influence of dosimetric parameters and concomitant chemotherapy.

Methods: A total of 45 patients with early operable cervical cancer underwent postoperative IMRT with 40-45 Gy.

Analysis of postoperative radiotherapy effects within risk groups in patients with FIGO I, II, and III endometrial cancer.

Introduction: To define indications for adjuvant radiotherapy in patients with endometrial cancer, the risk groups have been established according to clinical and pathological prognostic factors. The purpose was to determine precise criteria for adjuvant radiotherapy and identify patients with increased risk for disease relapse who may benefit from postoperative radiotherapy, with an acceptable level of toxicity.

Materials And Methods: A retrospective study was conducted at the Department of Oncology and Radiology, Kragujevac, during a 5-year period.

Vaginal packing volume impact on dose parameters during radiography and computed tomography based postoperative brachytherapy of cervical carcinoma.

Purpose: To investigate the influence of the vaginal packing volume on the registered dose parameters evaluated by radiography (2D) and computed tomography (CT) (3D) based brachytherapy planning in cervical cancer patients treated with postoperative radiotherapy.

Methods: The postoperative radiotherapy was performed in 40 cervical cancer patients with increased risk for disease relapse. Both, radiography and CT based brachytherapy planning were done in all patients.