The value of measurement about posterior pituitary lobe signal intensity on MRI images

LU  Fa -jin; et al

doi:10.13406/j.cnki.cyxb.2001.04.029

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The value of measurement about posterior pituitary lobe signal intensity on MRI images

更新时间：2024-01-17

- The value of measurement about posterior pituitary lobe signal intensity on MRI images
- Journal of Chongqing Medical University Issue 4, Pages: 448-450(2001)
- 作者机构：
  
  1. 重庆医科大学临床学院放射科
  2. 重庆医科大学临床学院放射科,重庆,400016
- 作者简介：
- 基金信息：
- DOI：10.13406/j.cnki.cyxb.2001.04.029
  CLC： R445.2
- Published：2001，
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[1]吕发金,罗天友,石军,李咏梅,袁书伟,史斌.垂体后叶MRI信号强度测量的意义[J].重庆医科大学学报,2001(04):448-450.

LU Fa -jin, et al. The value of measurement about posterior pituitary lobe signal intensity on MRI images. [J]. Journal of Chongqing Medical University (4):448-450(2001)
[1]吕发金,罗天友,石军,李咏梅,袁书伟,史斌.垂体后叶MRI信号强度测量的意义[J].重庆医科大学学报,2001(04):448-450. DOI： 10.13406/j.cnki.cyxb.2001.04.029.

LU Fa -jin, et al. The value of measurement about posterior pituitary lobe signal intensity on MRI images. [J]. Journal of Chongqing Medical University (4):448-450(2001) DOI： 10.13406/j.cnki.cyxb.2001.04.029.

摘要

目的：探讨垂体后叶信号强度测量的价值。方法：低场ＭＲＩ正中矢状位Ｔ１Ｗ１图像上测量正常人（１９３例）、中枢性尿崩症（３１例）及肺癌（３３例）的垂体后叶信号强度，并与桥脑的信号强度相比较。结果：正常垂体后叶８２．９％呈高信号，１７．１％呈等信号，无低信号出现；中枢性尿崩症（９６．８％）、部分肺癌（４２．４％）的垂体后叶呈低信号，信号强度比（ＳＩＲ）小于０．９３。结论：正常垂体后叶未见低信号，垂体后叶低信号是病理性的。

Abstract

Objective To investigate the value of measurement about signal intensity of posterior pituitary lobe on midline sagittal Ti - weighted images. Methods The signal intensity of posterior pituitary lobe in low field MRI about 193 healthy subjects

31 with central diabetes insipidus (CDI) and 33 with pulmonary cancers were measured

and compared with the signal intensity of pons. Results The highintensity signals of posterior pituitary lobe were found in 82. 9% healthy subjects

17. 1 % as intermediate intensity signals

while low intensity signals were not found in this study. The posterior pituitary lobe were iow intensity signal in 96.8% of CDI and 42.4% of pulmonary cancers

whose signal intensity ratios (SIR) were under 0. 93. Conclusion The low intensity signal of posterior pituitary lobe was pathologic

which was not found in healthy subjects.

关键词

磁共振成像垂体后叶

Keywords

magnetic resonance imagingPosterior pituitary lobe

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