Multidetector CT and high magnetic field MRI in evaluation of small cystic-solid renal mass
- VernacularTitle:肾脏囊实性小占位病变多排CT与高强场MRI的诊断价值
- Author:
bing-hui, ZHAO
;
ming-hua, LI
;
kang-rong, ZHOU
- Publication Type:Journal Article
- Keywords:
small renal mass;
cystic-solid;
MRI;
multidetector CT
- From:Journal of Shanghai Jiaotong University(Medical Science)
2006;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the role of multidetector CT(MDCT) and high magnetic field MRI in diagnosis of small cystic-solid renal mass. Methods Fifty-two cases with small renal cystic-solid mass(≤3 cm) were consecutively collected,including small cystic-solid renal cell carcinoma(n=25),carcinoid(n=1),complex cysts(n=16),small angiomyolipoma(n=7) and benign cystic nephroma(n=3).All were examined by both 1.5T MRI and multidetector CT at intervals between 3 days and 2 months. Results All cases were proved by pathology.Multi-planar reconstruction techniques were useful for MDCT in differentiating small cystic-solid renal mass,with the sensitivity of 98.1%,which was as high as MRI.However,the accuracy for MDCT was 71.2%,significantly lower than that of MRI(90.4%)(P=0.001).MRI helped to identify the components and structure of renal masses,and behaved better in the detection of pseudo-capsule of renal cell carcinoma(57.7%).Conclusion High magnetic field MRI may play an important role in the diagnosis of small renal cystic-solid masses,and it may be feasible as a noninvasive examination when CT can not make the ultimate determination.
