AN OBSERVATION OF INCREASED CONTRAST DUE TO BOTH T1 AND T2 WEIGHTING IN A SYNTHETIC IMAGE

被引：2

作者：

MCRITCHIE, HA ^{[1
]}

RIDGWAY, JP ^{[1
]}

TURNBULL, LW ^{[1
]}

KEAN, DM ^{[1
]}

机构：

[1] ROYAL INFIRM,NMR IMAGING UNIT,EDINBURGH EH3 9HB,MIDLOTHIAN,SCOTLAND

来源：

MAGNETIC RESONANCE IMAGING | 1990年 / 8卷 / 03期

关键词：

Contrast; MRI; T[!sub]1[!/sub] and T[!sub]2[!/sub] relaxation times;

D O I：

10.1016/0730-725X(90)90098-M

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

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. © 1990.

引用

页码：261 / 266

页数：6

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