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MR Imaging of the Brain in Pediatric Patients: Diagnostic Value of HASTE Sequences

Andrea K. Penzkofer1, Thomas Pfluger1, Yvonne Pochmann1,2, Oliver Meissner1 and Gerda Leinsinger1

1 Department of Clinical Radiology, Klinikum Innenstadt, Ludwig Maximilans University of Munich, Ziemssenstr. 1, 80336 Munich, Germany.
2 Radiologie Starnberger See, Oßwaldstr. 1, 82319 Starnberg, Germany.



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  		Fig. 1A. —7-year-old boy with psychomotor developmental delay. T2-weighted turbo spin-echo MR image shows white matter (arrows) that is abnormally bright for child of this age (caused by delayed myelination).

 


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  		Fig. 1B. —7-year-old boy with psychomotor developmental delay. HASTE image has low contrast. Finding of white matter (arrows) is less conspicuous on this pulse sequence than on A because of poor signal-to-noise contrast.

 


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  		Fig. 2A. —Boy aged 5 years 6 months with history of convulsions. T2-weighted turbo spin-echo MR image shows cortical dysplasia (arrows) of right temporal lobe extending into occipital region.

 


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  		Fig. 2B. —Boy aged 5 years 6 months with history of convulsions. On HASTE image, differentiation between normal and abnormal cortex (arrows) is more difficult than on A.

 


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  		Fig. 2C. —Boy aged 5 years 6 months with history of convulsions. True inversion recovery sequence image confirms finding of cortical dysplasia (arrows).

 


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  		Fig. 3A. —12-year-old girl with arteriovenous malformation of brain. T2-weighted turbo spin-echo MR image shows arteriovenous malformation (arrows).

 


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  		Fig. 3B. —12-year-old girl with arteriovenous malformation of brain. On HASTE image, magnetic susceptibility of malformation (arrows) is lower than on T2-weighted turbo spin-echo MR image (A).

 


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  		Fig. 4A. —9-year-old girl with history of cured acute lymphatic leukemia and secondary pons glioma. Intrapontine mass (arrow) can be detected on T2-weighted turbo spin-echo MR image.

 


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  		Fig. 4B. —9-year-old girl with history of cured acute lymphatic leukemia and secondary pons glioma. On HASTE image, tumor (arrow) is also easy to detect.

 


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  		Fig. 5A. —2-year-old girl with history of meningeal tuberculosis with hydrocephalus. T2-weighted turbo spin-echo MR image shows widening of ventricles and periventricular edema (arrows) as sign of increased intracranial pressure.

 


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  		Fig. 5B. —2-year-old girl with history of meningeal tuberculosis with hydrocephalus. HASTE image also shows hydrocephalus (arrows), but periventricular edema is less conspicuous than on T2-weighted turbo spin-echo MR image (A).

 

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