Gradient-echo chemical shift imaging in detection of lipid-containing abdominal lesions
- VernacularTitle:梯度回波化学位移成像用于诊断腹腔含脂病变的价值
- Author:
Jiang LIN
;
Zuwang CHEN
;
Kangrong ZHOU
- Publication Type:Journal Article
- Keywords:
Magnetic resonance imaging;
Peritoneal cavity;
Adipose tissue
- From:
Chinese Journal of Radiology
2001;35(2):139-141
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the value of gradient-echo chemical shift imaging in detection of lipid-containing abdominal lesions. Methods 35 patients with abdominal lesions were divided into 2 groups according to whether or not they contained lipid. Breath-hold in-phase(IP) and opposed-phase(OP) acquisitions were performed. The demonstration of these lesions on IP and OP was compared. The signal intensity of these lesions on both images was measured. The percentage of signal intensity variation on IP and OP was calculated and statistically analyzed with non-parametric method between the 2 groups. Results For lesions containing lipid, the signal intensity dropped significantly from IP to OP, with median value of signal intensity variation attaining 37.1%. On the other hand, for lesions not containing lipid, the signal intensity did not change obviously between IP and OP, whose median value of signal intensity variation was 3.3%. The difference between the 2 groups was statistically significant (u=4.56，P<0.01). Conclusion Gradient-echo chemical shift imaging is an easy and practical way, helpful to detection of lipid component within abdominal lesions.
