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呼吸导航自由呼吸 3D 扰相梯度回波序列在肝脏增强检查中的应用：诊断效用及与自由呼吸和屏气常规检查的比较。

Respiratory navigated free breathing 3D spoiled gradient-recalled echo sequence for contrast-enhanced examination of the liver: diagnostic utility and comparison with free breathing and breath-hold conventional examinations.

机构信息

Department of Diagnostic Radiology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA.

出版信息

AJR Am J Roentgenol. 2010 Sep;195(3):687-91. doi: 10.2214/AJR.09.3892.

DOI:10.2214/AJR.09.3892
PMID:20729447
Abstract

OBJECTIVE

The purpose of our study was to evaluate image quality in a 3D spoiled gradient-recalled echo (SPGR) sequence that was modified to incorporate respiratory navigation to limit the deleterious effects of respiratory motion and to compare it with conventional scanning during breath-holding and free breathing.

CONCLUSION

Respiratory navigation of 3D SPGR sequences is technically feasible, and image quality is modestly improved over free breathing acquisitions using conventional 3D SPGR sequences. This may represent a promising imaging alternative for patients who cannot hold their breath.

摘要

目的

我们研究的目的是评估经过改良纳入呼吸导航技术的 3D 扰相梯度回波（SPGR）序列的图像质量，以限制呼吸运动的有害影响，并将其与屏气和自由呼吸时的常规扫描进行比较。

结论

呼吸导航 3D SPGR 序列在技术上是可行的，与使用常规 3D SPGR 序列进行自由呼吸采集相比，图像质量略有改善。对于无法屏气的患者，这可能代表一种有前途的成像选择。

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