Differential diagnosis of the small renal masses: role of the apparent diffusion coefficient of the diffusion-weighted MRI

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16370%2F18%3A43877066" target="_blank" >RIV/62157124:16370/18:43877066 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14110/18:00102965 RIV/00159816:_____/18:00068634

Result on the web

<a href="http://dx.doi.org/10.1007/s11255-017-1761-1" target="_blank" >http://dx.doi.org/10.1007/s11255-017-1761-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11255-017-1761-1" target="_blank" >10.1007/s11255-017-1761-1</a>

Result language

angličtina

Original language name

Differential diagnosis of the small renal masses: role of the apparent diffusion coefficient of the diffusion-weighted MRI

Original language description

Renal cell carcinoma (RCC) accounts for approximately 3% of adult malignancies and more than 90% of neoplasms arising from the kidney. Uninformative percutaneous kidney biopsies vary from 10 to 23%. As a result, 7.5-33.6% of partial nephrectomies in patients with small renal masses (SRM) are performed on benign renal tumors. The aim of this study was to assess the feasibility of the apparent diffusion coefficient (ADC) of the diffusion-weighted imaging (DWI) of MRI, as RCC imaging biomarker for differentiation of SRM. Adult patients (n = 158) with 170 SRM were enrolled into this study. The control group were healthy volunteers with normal clinical and radiologic findings (n = 15). All participants underwent MRI with DWI sequence included. Mean ADC values of solid RCC (1.65 +/- 0.38 x 10(-3) mm(2)/s) were lower than healthy renal parenchyma (2.47 +/- 0.12 x 10(-3) mm(2)/s, p &lt; 0.05). There was no difference between mean ADC values of ccRCC, pRCC and chRCC (1.82 +/- 0.22 x 10(-3) vs 1.61 +/- 0.07 x 10(-3) vs 1.46 +/- 0.09 x 10(-3) mm(2)/s, respectively, p = ns). An inverse relationship between mean ADC values and Fuhrman grade of nuclear atypia of solid ccRCCs was observed: grade I-1.92 +/- 0.11 x 10(-3) mm(2)/s, grade II-1.84 +/- 0.14 x 10(-3) mm(2)/s, grade III-1.79 +/- 0.10 x 10(-3) mm(2)/s, grade IV-1.72 +/- 0.06 x 10(-3) mm(2)/s. This was significant (p &lt; 0.05) only between tumors of I and IV grades. Significant difference (p &lt; 0.05) between mean ADC values of solid RCCs, benign renal tumors and renal cysts was observed (1.65 +/- 0.38 x 10(-3) vs 2.23 +/- 0.18 x 10(-3) vs 3.15 +/- 0.51 x 10(-3) mm(2)/s, respectively). In addition, there was a significant difference (p &lt; 0.05) in mean ADC values between benign cysts and cystic RCC (3.36 +/- 0.35 x 10(-3) vs 2.83 +/- 0.21 x 10(-3) mm(2)/s, respectively). ADC maps with b values of 0 and 800 s/mm(2) can be used as an imaging biomarker, to differentiate benign SRM from malignant SRM. Using ADC value threshold of 1.75 x 10(-3) mm(2)/s allows to differentiate solid RCC from solid benign kidney tumors with 91% sensitivity and 89% specificity; ADC value threshold of 2.96 x 10(-3) mm(2)/s distinguishes cystic RCC from benign renal cysts with 90% sensitivity and 88% specificity. However, the possibility of differentiation between ccRCC histologic subtypes and grades, utilizing ADC values, is limited.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30107 - Medicinal chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Urology and Nephrology

ISSN

0301-1623

e-ISSN

—

Volume of the periodical

50

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

197-204

UT code for WoS article

000425010000002

EID of the result in the Scopus database

2-s2.0-85037710332