Studying neonatal bilirubin encephalopathy with conventional MRI, MRS, and DWI Journal Article


Authors: Wang, X.; Wu, W.; Hou, B. L.; Zhang, P.; Chineah, A.; Liu, F.; Liao, W.
Article Title: Studying neonatal bilirubin encephalopathy with conventional MRI, MRS, and DWI
Abstract: Introduction: The purpose of this study was to evaluate the diagnostic value of conventional magnetic resonance imaging (MRI), proton magnetic resonance spectroscopy (1H-MRS), and diffusion-weighted imaging (DWI) for neonatal bilirubin encephalopathy. Methods: We collected conventional MRI in 24 neonates with neonatal bilirubin encephalopathy. We performed 1H-MRS and DWI sequences to nine of the 24 patients and seven age-matched healthy control subjects. Multiple-voxel 1H-MRS data were acquired using PRESS pulse sequence with TE=135 ms and TR=1500 ms. The spectroscopic regions of interest were the bilateral basal ganglia and thalamus with a 1.0 mL spatial resolution. The data from DWI were collected by using a single shot-spin echo-echo planar imaging sequence with TR/TE: 2900/98, and imaging regions were also focused on the bilateral basal ganglia and thalamus. Results: Nineteen of the 24 patients had abnormal T1-weighted image hyperintensity in the globus pallidus, but these lesions appeared as normal T2-weighted image intensity in the same region. Ten of the 24 patients had T1-weighted image high signal intensity in the subthalamic nucleus and appeared as normal intensity in the region for the T2-weighted images. The peak area ratios of NAA/Cho and NAA/Cr were significantly decreased (t-test, P<0.05) in the patients compared to the controls in the basal ganglia. Conclusion: Conventional MR imaging and 1H-MRS are important complementary tools in the diagnosis of neonatal bilirubin encephalopathy. The study provides important information for applying these MR modalities to evaluate neonates with bilirubin encephalopathy. © 2008 Springer-Verlag.
Keywords: clinical article; controlled study; case-control studies; nuclear magnetic resonance imaging; magnetic resonance imaging; evaluation; infant, newborn; diagnostic value; gestational age; newborn; magnetic resonance spectroscopy; choline; creatine; diffusion weighted imaging; diffusion magnetic resonance imaging; spectroscopy; aspartic acid; proton nuclear magnetic resonance; echo planar imaging; magnetic resonance imaging (mri); thalamus; 1h-mrs; bilirubin encephalopathy; dwi neonate; kernicterus; basal ganglion; globus pallidus; subthalamic nucleus
Journal Title: Neuroradiology
Volume: 50
Issue: 10
ISSN: 0028-3940
Publisher: Springer  
Date Published: 2008-10-01
Start Page: 885
End Page: 893
Language: English
DOI: 10.1007/s00234-008-0423-5
PUBMED: 18563403
PROVIDER: scopus
DOI/URL:
Notes: --- - "Cited By (since 1996): 3" - "Export Date: 17 November 2011" - "CODEN: NRDYA" - "Source: Scopus"
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  1. Bob L Hou
    22 Hou