MR-IMAGING OF THE LIVER - BREATH-HOLD T1-WEIGHTED MP-GRE COMPARED WITH CONVENTIONAL T2-WEIGHTED SE IMAGING - LESION DETECTION, LOCALIZATION, AND CHARACTERIZATION

被引：29
作者：
DELANGE, EE [1 ]
MUGLER, JP [1 ]
BOSWORTH, JE [1 ]
DEANGELIS, GA [1 ]
GAY, SB [1 ]
HURT, NS [1 ]
BERR, SS [1 ]
ROSENBLATT, JM [1 ]
MERICKEL, LW [1 ]
HARRIS, EK [1 ]
机构：
[1] UNIV VIRGINIA,HLTH SCI CTR,DIV BIOSTAT,CHARLOTTESVILLE,VA 22908
来源：
RADIOLOGY | 1994年 / 190卷 / 03期
关键词：
LIVER; MR; MAGNETIC RESONANCE (MR); COMPARATIVE STUDIES; RAPID IMAGING; TECHNOLOGY; TISSUE CHARACTERIZATION;
D O I：
10.1148/radiology.190.3.8115619
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：
PURPOSE: To compare breath-hold T1-weighted magnetization-prep ared gradient-echo (MP-GRE) imaging with conventional T2-weighted spin-echo (SE) imaging in evaluation of focal liver disease. MATERIALS AND METHODS: Images of 68 patients evaluated for focal liver disease were reviewed. Five sets of images were analyzed: axial, sagittal, and coronal breath-hold T1-weighted MP-GRE images, axial T2-weighted SE images, and a compilation of axial, sagittal, and coronal (three-plane) T1-weighted ME-GEE images. Lesion signal intensity (SI) and signal difference-to-noise (SD/N) ratios were calculated. RESULTS: Lesions were detected, localized, and characterized more accurately (P <.05-.001) and with greater confidence on three-plane T1-weighted ME-GEE images than on almost all single-plane images. Mean SI ratios of nonsolid and solid lesions on MP-GRE and SE images were significantly different at all lesion sizes; mean SD/N ratio was significantly different only for large lesions. CONCLUSION: Lesion detection, localization, and characterization can be accurately and confidently performed with three-plane T1-weighted MP-GRE breath-hold imaging, potentially obviating conventional T2-weighted SE imaging.
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收藏
页码：727 / 736
页数：10
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