AI Article Synopsis
- - The study investigated metabolic patterns in the basal ganglia of patients with neurofibromatosis type 1 (NF1) using magnetic resonance spectroscopy, comparing those with and without T2-weighted hyperintensities to control subjects.
- - Results showed that individuals with NF1 had significantly higher levels of myoinositol/creatine and choline/creatine compared to controls, while the N-acetyl aspartate (NAA)/creatine ratio did not differ significantly between groups.
- - The findings suggest that magnetic resonance spectroscopy can reveal tissue abnormalities in NF1 not seen on structural images, indicating functional neuronal stability despite changes in certain metabolite levels.
Article Abstract
Background: Results of magnetic resonance spectroscopy studies in normal-appearing brain and in non-neoplastic brain lesions in individuals with neurofibromatosis type 1 (NF1) have been discrepant.
Objective: We used magnetic resonance spectroscopy to analyze the metabolic patterns in the basal ganglia of patients with NF1 and examine their correlation with focal hyperintense lesions in T2-weighted images (T2-weighted hyperintensities).
Methods: We used magnetic resonance spectroscopy data of 42 individuals with NF1 (18 with and 24 without T2- weighted hyperintensities) and 25 controls matched for gender and age. A single-voxel technique was employed by manually placing a region of interest with a uniform size over a predetermined anatomical region including the globus pallidum and putamen (capsulolenticular region). We further analyzed the ratios of choline/creatine, N-acetyl aspartate (NAA)/creatine, and myoinositol/creatine metabolites and the occurrence of T2-weighted hyperintensities in these regions in individuals with NF1.
Results: There was a significant difference between the NF1 and control groups with regard to the mean values of myoinositol/creatine and choline/creatine, with higher metabolite values observed in the NF1 group (P < 0.001). Only the myoinositol/creatine ratio was able to discriminate between NF1 subgroups with and without T2-weighted hyperintensities. For the NAA/creatine ratio, there was no significant difference between the NF1 and the control groups.
Conclusion: Magnetic resonance spectroscopy allows the characterization of tissue abnormalities not demonstrable in the structural images of individuals with NF1 through choline and myoinositol metabolite analysis. Yet the preserved NAA values argue against demyelination and axonal degeneration occurring in the region, suggesting instead a functional neuronal stability. Taken in association with the findings of lack of clinical manifestations and the known transient nature of T2-weighted hyperintensities in NF1 as demonstrated by other studies, our results support the current histopathologically driven hypothesis that such T2-weighted hyperintensities may be related to intramyelinic edema.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.pediatrneurol.2014.11.014 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Appropriateness of lumbar spine imaging in patients presenting to the emergency department with low back pain in a Western Australian tertiary hospital.
Intern Med J
January 2025
Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
Background: The Australian Rheumatology Association identified the use of imaging in patients with low back pain without indication of serious pathology as a low-value practice.
Aims: To determine the appropriateness of diagnostic lumbar spine imaging requests in patients with low back pain presenting to a Western Australian hospital's emergency department.
Methods: We conducted a retrospective review of all adult patients (18 years and older) who presented with low back pain to the Fiona Stanley Hospital emergency department from 1 July 2020 to 31 December 2020.
A prospective, phase II, neoadjuvant study based on chemotherapy sensitivity in HR+/HER2- breast cancer-FINEST study.
Cancer Commun (Lond)
January 2025
Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Centre, Shanghai, P. R. China.
Background: Hormone receptor-positive (HR+)/humaal growth factor receptor 2-negative (HER2-) breast cancer, the most common breast cancer type, has variable prognosis and high recurrence risk. Neoadjuvant therapy is recommended for median-high risk HR+/HER2- patients. This phase II, single-arm, prospective study aimed to explore appropriate neoadjuvant treatment strategies for HR+/HER2- breast cancer patients.
View Article and Find Full Text PDFAcquired cystic kidney disease in children with kidney failure.
Pediatr Nephrol
January 2025
Paediatric Nephrology Centre, Hong Kong Children's Hospital, Hong Kong, Hong Kong SAR.
Background: This study aimed to evaluate the incidence, contributing factors, and clinical outcomes of acquired cystic kidney disease (ACKD) in children undergoing kidney replacement therapy (KRT).
Methods: We conducted a cross-sectional, territory-wide study at the designated pediatric nephrology center in Hong Kong. ACKD was defined as the presence of ≥ 3 cysts in the native kidneys, excluding congenital or hereditary cystic diseases.
Trigeminal artery anatomical aspects.
Surg Radiol Anat
January 2025
Ovidius" University From Constanţa, Constanța, Romania.
Purpose And Background: The trigeminal artery is a rare anatomical variant, representing an embryonic vestige of the anastomosis between the internal carotid artery and the posterior circulator system, that can be asymptomatic or could have vast clinical manifestations produced by insufficient flow or by vascular nervous conflicts. This study is an anatomical presentation of 3 trigeminal artery cases observed at Medimar Imagistic Services Constanta.
Methods: The 3 trigeminal artery cases were discovered on a 860 magnetic resonance angiographies (0.
The Emerging Role of Multimodality Imaging in the Diagnosis and Management of Post Pericardiotomy Syndrome.
Curr Cardiol Rep
January 2025
Division of Cardiology, McGill University Health Centre, 845 Rue Sherbrooke O, Montreal, QC, H3H 0G4, Canada.
Purpose Of Review: This review aims to evaluate current diagnostic and therapeutic strategies for postpericardiotomy syndrome (PPS), with a focus on the evolving role of multimodality imaging, including echocardiography, cardiac computed tomography (CCT), and cardiac magnetic resonance imaging (CMR). The review also explores the potential benefits of advanced imaging in improving the accuracy and management of PPS.
Recent Findings: PPS, a common complication following cardiac surgery, presents with pleuritic chest pain, fever, and pericardial or pleural effusion.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!