INVIVO F-19 SPIN RELAXATION IN INDEX FINGER BONES

被引：22

作者：

CODE, RF ^{[1
]}

HARRISON, JE ^{[1
]}

MCNEILL, KG ^{[1
]}

SZYJKOWSKI, M ^{[1
]}

机构：

[1] UNIV TORONTO,DEPT MED,TORONTO M5S 1A7,ONTARIO,CANADA

来源：

MAGNETIC RESONANCE IN MEDICINE | 1990年 / 13卷 / 03期

关键词：

D O I：

10.1002/mrm.1910130303

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：

19F free induction decay (FID) signals have been observed from the index fingers of four male and two female adult volunteers using a 27‐MHz pulsed nuclear magnetic resonance spectrometer equipped with a split ring resonator probe. The value of the in vivo spin‐lattice relaxation time T1 of the fluoride ions naturally accumulated in bone mineral has been determined to be 2.0 ± 0.3 s. The shape of the observed FID signals in the inhomogeneous external magnetic field indicates that the F distribution is not uniform along the length of the finger. The fluoride ion content of the index finger (within a 65‐mm length from its distal end) was measured with a sensitivity of ±0.5 mg F within a 30‐min observation time Copyright © 1990 Wiley‐Liss, Inc., A Wiley Company

引用

页码：358 / 369

页数：12

共 18 条

[1] EFFECTS OF ROTATING MAGNETIC FIELDS ON FREE-INDUCTION DECAY SHAPES [J].