Abdominal MRI at 3.0 T: The basics revisited

被引：155

作者：

Merkle, EM

Dale, BM

机构：

[1] Duke Univ, Med Ctr, Dept Radiol, Durham, NC 27710 USA

[2] Siemens Med Solut USA, Cary, NC 27519 USA

来源：

AMERICAN JOURNAL OF ROENTGENOLOGY | 2006年 / 186卷 / 06期

关键词：

abdominal imaging; field strength; MRI; MRI technique; physics;

D O I：

10.2214/AJR.05.0932

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：

OBJECTIVE. The purpose of our article is to describe the underlying physics concepts of abdominal MRI at 3.0 T and their impact on signal-to-noise ratio, susceptibility artifacts, chemical shift artifacts, and dielectric effects. CONCLUSION. Abdominal MR sequence protocols optimized for 1.5-T scanners should not be transferred to 3.0 T without substantial modification. In addition, specific patient groups - for example, large patients with ascites - are not well suited to undergo an abdominal MRI study at 3.0 T.

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收藏

页码：1524 / 1532

页数：9

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