UNSUPPRESSED FAT IN THE RIGHT ANTERIOR DIAPHRAGMATIC REGION ON FAT-SUPPRESSED T2-WEIGHTED FAST SPIN-ECHO MR-IMAGES

被引：16

作者：

YOSHIMITSU, K ^{[1
]}

VARMA, DGK ^{[1
]}

JACKSON, EF ^{[1
]}

机构：

[1] UNIV TEXAS,MD ANDERSON CANC CTR,DEPT DIAGNOST RADIOL,HOUSTON,TX 77030

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1995年 / 5卷 / 02期

关键词：

ABDOMEN; ARTIFACT; FAT; MEDIASTINUM; RAPID IMAGING; TISSUE SUPPRESSION;

D O I：

10.1002/jmri.1880050205

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：

The authors retrospectively evaluated magnetic resonance images of the abdomen obtained in 52 consecutive patients. All cases included fast spin-echo (FSE) T2-weighted images acquired with a frequency-selective fat saturation technique. All Imaging was performed with a 1.5-T unit. In 42 patients (81%), fat was not suppressed in the right anterior diaphragmatic region on the T2-weighted FSE images with fat suppression. In 11 (26%) of these 42 patients, subcutaneous fat adjacent to the unsuppressed anterior diaphragmatic fat was well suppressed. Hence, the fat in the diaphragmatic region mimicked fluid or peritoneal implants. The cause of the artifact appears to be the juxtaposition of liver, fat, and lung parenchymal air within a small anatomic space, creating SD localized inhomogeneity of the magnetic field and susceptibility effects. Radiologists should be aware of this phenomenon to prevent confusion of an artifact with fluid car neoplasms.

引用

页码：145 / 149

页数：5

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