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The value of IDEAL-IQ in differential diagnosis of AFP-negative hepatocellular carcinoma and focal nodular hyperplasia
LI Shaopeng  DENG Kexue 

Cite this article as: Li SP, Deng KX. The value of IDEAL-IQ in differential diagnosis of AFP-negative hepatocellular carcinoma and focal nodular hyperplasia[J]. Chin J Magn Reson Imaging, 2022, 13(4): 115-119. DOI:10.12015/issn.1674-8034.2022.04.022.


[Abstract] Objective To evaluate the value of iterative decomposition of water and fat with echo asymmetry and least squares estimation quantification (IDEAL-IQ) sequence in the diagnosis and differential diagnosis of alpha fetoprotein (AFP) negative hepatocellular carcinoma (HCC) and focal nodular hyperplasia (FNH).Materials and Methods Retrospective analysis was performed on 28 cases of AFP negative HCC and 15 cases of FNH. All patients received routine liver MR scans and IDEA-IQ sequence scan preoperatively. The R2* and fat fraction (FF) values of the lesion and background liver tissue were respectively measured in the two groups and analyzed statistically. Receiver operating characteristic (ROC) curve was used to analyze and compare the diagnostic efficiency of relevant parameters in the two groups.Results The values of FFlesion and R2*liver/R2*lesion in HCC and FNH group were (8.28%±5.76% , 2.98±1.08) vs. (2.56%±1.25%, 1.90±0.50), respectively, with statistical significance (P＜0.05). R2*lesion and FFliver in the two groups were [(21.15±5.80) Hz, 4.02%±2.54%] vs. [(22.79±6.07) Hz, 4.23%±3.32%], respectively, with no statistical significance (P＞0.05). The area under the curve (AUC) of FFlesion and R2*liver/R2*lesion were 0.923 (P＜0.001) and 0.883 (P＜0.001), respectively.Conclusions The FFlesion value and R2*liver/R2*lesion have differential diagnostic value for both of them and the AUC of FFlesion is larger than that of R2*liver/R2*lesion.
[Keywords] magnetic resonance imaging；IDEAL-IQ；hepatocellular carcinoma；alpha fetoprotein；focal nodular hyperplasia；steatosis；iron deficiency

LI Shaopeng   DENG Kexue*  

Department of Radiology, the First Affiliated Hospital of USTC, Southern District of Anhui Provincial Hospital, Hefei 230032, China

Deng KX, E-mail: dengkexue-anhui@ 163.com

Conflicts of interest   None.

Received  2021-08-25
Accepted  2022-03-21
DOI: 10.12015/issn.1674-8034.2022.04.022
Cite this article as: Li SP, Deng KX. The value of IDEAL-IQ in differential diagnosis of AFP-negative hepatocellular carcinoma and focal nodular hyperplasia[J]. Chin J Magn Reson Imaging, 2022, 13(4): 115-119. DOI:10.12015/issn.1674-8034.2022.04.022.

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