| Autor: |
McRitchie HA; NMR Imaging Unit, Royal Infirmary, Edinburgh, Scotland., Ridgway JP, Turnbull LW, Kean DM |
| Jazyk: |
angličtina |
| Zdroj: |
Magnetic resonance imaging [Magn Reson Imaging] 1990; Vol. 8 (3), pp. 261-6. |
| DOI: |
10.1016/0730-725x(90)90098-m |
| Abstrakt: |
An observation was made that subtracted images generated by an SR/IR interleaved pulse sequence on a low field strength magnetic resonance imager (M&D Technology Ltd, Aberdeen, Scotland) contained contrast between pathological and normal tissues that was not explained by either T1 or T2 weighting alone. A theoretical model for this image has been derived and its validity confirmed by phantom experiments. It is shown that the subtracted image is dependent on the product of T1 and T2 prolongation for contrast. This type of image might be of use in screening for unknown pathologies and such techniques may shorten routine patient imaging times. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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