CARDIAC MASSES - SIGNAL INTENSITY FEATURES ON SPIN-ECHO, GRADIENT-ECHO, GADOLINIUM-ENHANCED SPIN-ECHO, AND TURBOFLASH IMAGES

被引：48

作者：

SEMELKA, RC

SHOENUT, JP

WILSON, ME

PELLECH, AE

PATTON, JN

机构：

[1] Department of Radiology, St Boniface General Hospital MRI Facility and the University of Manitoba, Winnipeg, Manitoba, R2H 2A6

[2] St Boniface General Hospital MRI Facility, University of Manitoba, Winnipeg, Manitoba, R2H 2A6

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1992年 / 2卷 / 04期

关键词：

CONTRAST ENHANCEMENT; GADOLINIUM; HEART; NEOPLASMS; THROMBOSIS; RAPID IMAGING;

D O I：

10.1002/jmri.1880020410

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：

Fifteen patients with cardiac or paracardiac masses underwent magnetic resonance (MR) imaging with spin-echo (n = 15), cine gradient-echo (n = 15), gadopentetate dimeglumine-enhanced spin-echo (n = 15), and TurboFLASH (fast low-angle shot) (n = 7) sequences. All masses had either histologic confirmation (n = 11) or confirmation with other imaging modalities (n = 4). Myxomas (n = 6) were characterized by an intermediate signal intensity (SI) on spin-echo (n = 6) and low SI on cine gradient-echo (n = 6) images and moderately high-SI contrast enhancement (n = 5). Percent contrast enhancement for myxomas was 57% +/- 11%. Thrombus (n = 4) had intermediate (n = 3) or high (n = 1) SI on spin-echo images and low (n = 2) or intermediate (n = 2) SI on gradient-echo images and did not show substantial contrast enhancement. Postcontrast first-pass TurboFLASH images were useful by clearly demonstrating the nonenhancing mass lesion in a high-SI blood pool. Other cardiac and paracardiac tumors (n = 5) showed variable pre- and postcontrast spin-echo SI; however, no other tumor showed low SI on cine gradient-echo images.

引用

页码：415 / 420

页数：6

共 17 条

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