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  • Title: Magnetic Resonance Spectroscopy in Children With Developmental Delay: Time to Look Beyond Conventional Magnetic Resonance Imaging (MRI).
    Author: Rajvanshi N, Bhakat R, Saxena S, Rohilla J, Basu S, Nandolia KK, Agrawal S, Bhat NK, Chacham S.
    Journal: J Child Neurol; 2021 May; 36(6):440-446. PubMed ID: 33305985.
    Abstract:
    Developmental delay (DD) is an important long-term neuromorbidity owing to various insults to the developing brain and neuroimaging plays a key role in evaluating these children. Magnetic resonance spectroscopy (MRS) is the only noninvasive method to determine the levels of various metabolites in the brain which aids in delineating the underlying abnormalities. A total of 48 children aged between 6 months to 6 years with developmental delay were included and evaluated with neuroimaging in our study. Sensitivity of MRS in children with DD and DD plus (DD along with seizures, abnormal motor findings, behavior, brainstem evoked response audiometry, visual assessment, and microcephaly) was 81.2% and 89.6% respectively. 86.6% of children with microcephaly had abnormal MRS. MRS detected abnormalities in two-thirds of children with normal magnetic resonance imaging (MRI). Children with behavioral abnormalities had significantly lower N-acetyl aspartate (NAA)-creatine and NAA-choline ratios on MRS. Thus, MRS is additive to MRI in delineating the underlying pathophysiology in children with DD.
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