A prospective study of 3D dynamic MRI on differential diagnosis of breast lesions
- VernacularTitle:动态增强MRI鉴别乳腺良恶性病变的前瞻性研究
- Author:
Yong GUO
;
Zulong CAI
;
Youquan CAI
- Publication Type:Journal Article
- Keywords:
Breast neoplasm;
Magnetic resonance imaging;
Image enhancement
- From:
Chinese Journal of Radiology
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To prospectively evaluate the diagnostic ability of the lesions′ morphology, signal intensity time course, and early phase enhancement rate in dynamic MRI of the breast. Methods Forty cases with breast lesions were examined with a new Efgre 3D dynamic MR imaging series. Time signal intensity curves of the lesions were obtained and classified according to their shapes as monophasic, biphasic, or washout. Early phase enhancement rates of the lesions were calculated. The diagnostic indices were got by lesions′ morphology criterion, the time signal intensity curves criterion, and the enhancement rate criterion. Results There were 23 malignant and 18 benign lesions. The distribution of curve types for malignant lesions was monophasic (5%), biphasic (18%), and washout (77%). The distribution of curve types for benign lesions was monophasic (72%), biphasic (11%), and washout (17%). The distribution proved significantly difference (? 2=20.68, P
