1.5-T MR imaging of organic laryngotracheal stenosis in a pediatric cohort predominantly younger than 7 years: protocol optimization and diagnostic performance.

Objective: To develop a 1.5-T MR imaging protocol tailored for organic laryngotracheal stenosis (LTS) and to assess its performance in visualizing anatomy and pathologies.

Materials And Methods: Presurgical laryngotracheal 1.

Hybrid BOPPPS model in radiology education: a case study of pediatric undergraduates.

Background: To explore the application effect of the hybrid BOPPPS (bridge-in, objective, pre-assessment, participatory learning, post-assessment, and summary) teaching model in radiology education for five-year pediatric undergraduates.

Methods: A total of 418 students from Grade 2018 and 2019 majoring in Pediatrics of Chongqing Medical University were selected as the retrospective study objects. 213 undergraduates in Grade 2018 were included in the traditional lecture-based learning (LBL) group, and 205 undergraduates in Grade 2019 were included in the hybrid BOPPPS group.

Magnetic Resonance Imaging Characteristics of Autoimmune Glial Fibrillary Acidic Protein (GFAP) Astrocytopathy: A Pediatric Series in Southwest China.

Objective: To investigate and summarize the magnetic resonance imaging (MRI) manifestations of autoimmune glial fibrillary acidic protein (GFAP) astrocytopathy in children.

Methods: We retrospectively analyzed data from 17 pediatric patients with autoimmune GFAP astrocytopathy confirmed by the detection of GFAP autoantibodies in cerebrospinal fluid in our single-center. Furthermore, we reviewed current literature and summarized previous findings on the MRI characteristics of this disease in children.

The value of cardiac magnetic resonance imaging in endocardial fibroelastosis.

Introduction: Endocardial fibroelastosis (EFE), an uncommon congenital heart disorder often occurring in infants, has a poor prognosis. It is of great significance to perform early diagnosis and accurately analyze cardiac function to enable further clinical treatment and prognosis decisions. This study aimed to explore the findings of cardiac magnetic resonance (CMR) in patients with EFE, including morphological changes and cardiac function analyses.

MRI Features of Stroke-Like Episodes in Mitochondrial Encephalomyopathy With Lactic Acidosis and Stroke-Like Episodes.

Mitochondrial myopathy encephalopathy lactic acidosis and stroke-like episodes (MELAS) is an important cause of stroke-mimicking diseases that predominantly affect patients before 40 years of age. MELAS results from gene mutations in either mitochondrial DNA (mtDNA) or nuclear DNA (nDNA) responsible for the wide spectrum of clinical symptoms and imaging findings. Neurological manifestations can present with stroke-like episodes (the cardinal features of MELAS), epilepsy, cognitive and mental disorders, or recurrent headaches.

Diffuse leptomeningeal glioneuronal tumor without KIAA1549-BRAF fusion and 1p detection: a case report and review of literature.

Background: Diffuse leptomeningeal glioneuronal tumor (DLGNT) is a rare mixed neuronal-glial tumor of central nervous system. Chromosome microarray usually identifies co-deletion of the short arm of chromosome 1 and the long arm of chromosome 19 as well as fusion of the KIAA1549 and BRAF genes.

Methods: We describe a case of a 3-year-old boy with typical imaging and histopathological features, but without KIAA1549-BRAF fusion and 1p deletion.

The diagnostic value of intravoxel incoherent motion imaging in differentiating high-grade from low-grade gliomas: a systematic review and meta-analysis.

Objective: This meta-analysis was carried out for assessing the accuracy of intravoxel incoherent motion (IVIM) parameters true diffusion coefficient (D), pseudo-diffusion coefficient (D*), and perfusion fraction (f) in differentiating low-grade gliomas (LGGs) from high-grade gliomas (HGGs).

Methods: Literatures concerning IVIM in the grading of brain gliomas published prior to October 20, 2020, searched in the Embase, PubMed, and Cochrane library. Use the quality assessment of diagnostic accuracy studies 2 (QUADAS 2) to evaluate the quality of studies.