T2 Relaxation Values in the Developing Preterm Brain
Serena J. Counsella,
Nigel L. Kenneab,
Amy H. Herlihya,
Joanna M. Allsopa,
Michael C. Harrisonb,
Frances M. Cowanb,
Joseph V. Hajnala,
Bridget Edwardsb,
A. David Edwardsa,b and
Mary A. Rutherforda,b
a Robert Steiner MR Unit, Imaging Sciences Department, MRC Clinical Sciences Centre, Hammersmith Campus, Imperial College, DuCane Road, London, England
b Department of Paediatrics, Hammersmith Campus, Imperial College, DuCane Road, London, England
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FIG 1 MR images in an infant at 30 weeks’ PMA demonstrate positioning of the ROIs in the thalami (T), lentiform nuclei (L), and occipital white matter (W) on the left side.
A, TE of 30 ms.
B, TE of 60 ms.
C, TE of 110 ms.
D, TE of 600 ms.
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FIG 2 MR images in an infant at 27 weeks’ PMA with minimal ventricular dilatation demonstrate positioning of the ROI in the frontal white matter on the left side.
A, TE of 30 ms.
B, TE of 60 ms.
C, TE of 110 ms.
D, TE of 600 ms.
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FIG 3 Images in an infant at 27 weeks’ PMA demonstrate positioning of the ROI in the central white matter of the centrum semiovale on the left side.
A, TE of 30 ms.
B, TE of 60 ms.
C, TE of 110 ms.
D, TE of 600 ms.
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FIG 4 Graphs demonstrating the relationship between PMA and T2 values.
A, Thalami.
B, Lentiform nuclei.
C, Frontal white matter.
D, Occipital white matter.
E, Central white matter at the level of the centrum semiovale.
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