Quantitative study of diffusion weighted imaging on magnetic resonance imaging in focal hepatic lesions less than 3 cm.
- Author:
Xi-Jie SUN
1
;
Xian-Yue QUAN
;
Wen LIANG
;
Zhi-Bo WEN
;
Sheng ZENG
;
Fan-Heng HUANG
;
Ming TANG
Author Information
- Publication Type:Journal Article
- MeSH: Cysts; diagnosis; Diagnosis, Differential; Diffusion; Hemangioma, Cavernous; diagnosis; Humans; Liver; pathology; Liver Neoplasms; diagnosis; secondary; Magnetic Resonance Imaging
- From: Chinese Journal of Oncology 2004;26(3):165-167
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the characteristics of MR imaging of hepatic lesions using measurement of apparent diffusion coefficient (ADC) value of hepatic lesions on diffusion weighted imaging.
METHODSMR diffusion weighted images were obtained in patients with 97 hepatic lesions (22 hepatocellular carcinomas, 21 metastatic tumors, 28 hemangiomas, 26 cysts). ADC values were evaluated with different sequences. The ADC ratio of lesion/liver was estimated.
RESULTSAverage ADC values of hepatic lesions were as follows: carcinomas (0.91 +/- 0.07) x 10(-3) mm(2)/s, metastatic tumors (1.13 +/- 0.27) x 10(-3) mm(2)/s, cavernous hemangiomas (1.94 +/- 0.37) x 10(-3) mm(2)/s, cysts (3.26 +/- 0.30) x 10(-3) mm(2)/s. The ADC ratio of lesion/liver was significantly different between primary carcinomas and metastatic tumors (P < 0.05).
CONCLUSIONQuantitative study in hepatic lesions using ADC values and the ADC ratio of lesion/liver, would improve the accuracy in diagnosing hepatic lesions.
