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2017 ; 7
(1
): 3117
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Dynamic Contrast-enhanced MRI in Renal Tumors: Common Subtype Differentiation
using Pharmacokinetics
#MMPMID28596583
Wang HY
; Su ZH
; Xu X
; Huang N
; Sun ZP
; Wang YW
; Li L
; Guo AT
; Chen X
; Ma X
; Ma L
; Ye HY
Sci Rep
2017[Jun]; 7
(1
): 3117
PMID28596583
show ga
Preoperative renal tumor subtype differentiation is important for radiology and
urology in clinical practice. Pharmacokinetic data (K (trans) & V (e), etc.)
derived from dynamic contrast-enhanced MRI (DCE-MRI) have been used to
investigate tumor vessel permeability. In this prospective study on DCE-MRI
pharmacokinetic studies, we enrolled patients with five common renal tumor
subtypes: clear cell renal cell carcinoma (ccRCC; n?=?65), papillary renal cell
carcinoma (pRCC; n?=?12), chromophobic renal cell carcinoma (cRCC; n?=?9),
uroepithelial carcinoma (UEC; n?=?14), and fat-poor angiomyolipoma (fpAML;
n?=?10). The results show that K (trans) of ccRCC, pRCC, cRCC, UEC and fpAML
(0.459?±?0.190?min(-1), 0.206?±?0.127?min(-1), 0.311?±?0.111?min(-1),
0.235?±?0.116?min(-1), 0.511?±?0.159?min(-1), respectively) were different, but V
(e) was not. K (trans) could distinguish ccRCC from non-ccRCC (pRCC & cRCC) with
a sensitivity of 76.9% and a specificity of 71.4%, respectively, as well as to
differentiate fpAML from non-ccRCC with a sensitivity of 100% and a specificity
of 76.2%, respectively. Our findings suggest that DCE-MRI pharmacokinetics are
promising for differential diagnosis of renal tumors, especially for RCC subtype
characterization and differentiation between fpAML and non-ccRCC, which may
facilitate the treatment of renal tumors.
|*Image Enhancement
[MESH]
|*Magnetic Resonance Imaging/methods
[MESH]
|Adult
[MESH]
|Antineoplastic Agents/pharmacokinetics/therapeutic use
[MESH]