Phased array breath-hold versus non-breath-hold MR imaging of focal liver lesions: A prospective comparative study

被引:22
作者
Yamashita, Y
Yamamoto, H
Namimoto, T
Abe, Y
Takahashi, M
机构
[1] Department of Radiology, Kumamoto University, School of Medicine, Kumamoto 860
来源
JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1997年 / 7卷 / 02期
关键词
abdominal MRI; liver; neoplasms; fast imaging;
D O I
10.1002/jmri.1880070206
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
This study was undertaken to determine whether phased array breath-hold T1- and T2-weighted sequences can replace non-breath-hold spin echo (SE) sequences in the imaging of focal liver lesions by comparing overall image quality, liver-lesion contrast, and artifact. Both breath-hold and non-breath-hold T1-weighted and T2-weighted imagings of focal liver lesions were prospectively compared in 120 patients with suspected focal liver lesions imaged at 1.5 T with use of a body phased array multicoil. Breath-hold images were acquired with T1-weighted fast low-angle shot (FLASH) and T2-weighted turbo spin echo (TSE) sequences, and non-breath-hold images were made with conventional T1- and T2-weighted SE sequences. Qualitative image analysis was done by three blinded readers, and quantitative analysis was done. The highest signal-to-noise ratios were obtained with breath-hold T1-weighted FLASH sequence. The signal-to-noise ratios of breath-hold T2-weighted TSE sequence were slightly inferior to those of non-breath-hold SE sequence. Both T1-weighted and T2-weighted breath-hold sequences had less image artifact. Overall image quality of breath-hold sequences was better than that of non-breath-hold sequences for both T1- and T2-weighted sequences (P < 0.1). The tissue contrast of T1-weighted FLASH sequence was superior to that of SE sequence (P < .01). On T2-weighted imaging, tissue contrast of solid lesions was better on conventional SE sequence than that on breath-hold TSE sequence (P < .01). Respiratory ghost artifact was less prominent on T1-weighted FLASH sequence, although this artifact was occasionally seen on breath-hold T2-weighted TSE sequence. In a state-of-art MR unit with use of a phased array multicoil, conventional T1-weighted can be replaced by breath-hold sequences. On T2-weighted imaging, because solid tumor-liver contrast an breath-hold TSE imaging is inferior to that on non-breath-hold SE image, breath-hold imaging may not replace conventional non-breath-field T2-weighted SE sequence.
引用
收藏
页码:292 / 297
页数:6
相关论文
共 22 条
[1]   MR-IMAGING OF THE ABDOMEN WITH A PHASED-ARRAY MULTICOIL - PROSPECTIVE CLINICAL-EVALUATION [J].
CAMPEAU, NG ;
JOHNSON, CD ;
FELMLEE, JP ;
RYDBERG, JN ;
BUTTS, RK ;
EHMAN, RL ;
RIEDERER, SJ .
RADIOLOGY, 1995, 195 (03) :769-776
[2]   T2-WEIGHTED MR-IMAGING OF THE ABDOMEN - FAST SPIN-ECHO VS CONVENTIONAL SPIN-ECHO SEQUENCES [J].
CATASCA, JV ;
MIROWITZ, SA .
AMERICAN JOURNAL OF ROENTGENOLOGY, 1994, 162 (01) :61-67
[3]   THE LOSS OF SMALL OBJECTS IN VARIABLE TE IMAGING - IMPLICATIONS FOR FSE, RARE, AND EPI [J].
CONSTABLE, RT ;
GORE, JC .
MAGNETIC RESONANCE IN MEDICINE, 1992, 28 (01) :9-24
[4]   MR-IMAGING OF THE LIVER - BREATH-HOLD T1-WEIGHTED MP-GRE COMPARED WITH CONVENTIONAL T2-WEIGHTED SE IMAGING - LESION DETECTION, LOCALIZATION, AND CHARACTERIZATION [J].
DELANGE, EE ;
MUGLER, JP ;
BOSWORTH, JE ;
DEANGELIS, GA ;
GAY, SB ;
HURT, NS ;
BERR, SS ;
ROSENBLATT, JM ;
MERICKEL, LW ;
HARRIS, EK .
RADIOLOGY, 1994, 190 (03) :727-736
[5]   RAPID MR IMAGING WITH SUSPENDED RESPIRATION - CLINICAL-APPLICATION IN THE LIVER [J].
EDELMAN, RR ;
HAHN, PF ;
BUXTON, R ;
WITTENBERG, J ;
FERRUCCI, JT ;
SAINI, S ;
BRADY, TJ .
RADIOLOGY, 1986, 161 (01) :125-131
[6]  
GAUGER J, 1994, RADIOLOGY, V193, P133
[7]   NOISE CORRELATIONS IN DATA SIMULTANEOUSLY ACQUIRED FROM MULTIPLE SURFACE COIL ARRAYS [J].
HAYES, CE ;
ROEMER, PB .
MAGNETIC RESONANCE IN MEDICINE, 1990, 16 (02) :181-191
[8]  
HAYES CE, 1991, MAGNET RESON MED, V18, P181
[9]   T1-WEIGHTED SNAPSHOT GRADIENT-ECHO MR IMAGING OF THE ABDOMEN [J].
HOLSINGERBAMPTON, AE ;
RIEDERER, SJ ;
CAMPEAU, NG ;
EHMAN, RL ;
JOHNSON, CD .
RADIOLOGY, 1991, 181 (01) :25-32
[10]  
KREISCHER L, 1980, P SOC MAGN RES NIC S