RAPID RADIOFREQUENCY CALIBRATION IN MRI

被引：27

作者：

CARLSON, JW ^{[1
]}

KRAMER, DM ^{[1
]}

机构：

[1] TOSHIBA AMER MRI INC,S SAN FRANCISCO,CA 94080

来源：

MAGNETIC RESONANCE IN MEDICINE | 1990年 / 15卷 / 03期

关键词：

D O I：

10.1002/mrm.1910150309

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：

A collection of modified procedures for setting rf transmitter levels using a three‐pulse sequence is described. Based on a geometrically weighted ratio of four signals, an estimate of the flip angle is calculated and used for an updating prescription. These techniques are designed to perform rapidly yet eschew systematic errors due to relaxation during the pulse sequence. © 1990 Academic Press, Inc. Copyright © 1990 Wiley‐Liss, Inc., A Wiley Company

引用

页码：438 / 445

页数：8