Title:Gd-EOB-DTPA-enhanced Magnetic Resonance Imaging Combined with T1
Mapping Identifies Dysplastic Module and Hepatocellular Carcinoma: A
Retrospective Study
Volume: 20
Author(s): Diyou Chen, Qisheng Ran, Wei Ma, Huan Xie, Jie Zhou, Ji Liu, Yuanyuan Zhao, Letian Zhang*Yu Guo*
Affiliation:
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, China
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, China
Keywords:
Gd-EOB-DTPA, T1 mapping, Hepatocellular carcinoma, Dysplastic nodule, Differential diagnosis, Abdominal imaging.
Abstract:
Background:
Hepatocellular carcinoma (HCC) is the leading type of liver cancer in adults, often resulting in fatal outcomes for those with cirrhosis. Dysplastic
nodule (DN) is a liver nodule that is substantial in size, ranging from 1-2 cm. However, accurately distinguishing between DN and HCC on
imaging has posed a challenge.
Objective:
The aim of this study is to assess the usefulness of Gd-EOB-DTPA-enhanced MRI T1 mapping in distinguishing between DN and HCC.
Methods:
This study analyzed 66 patients with confirmed HCC or DN who underwent Gd-EOB-DTPA-enhanced MRI T1 mapping before surgery or
puncture at the Army Medical Center in China. The T1 values of each lesion were measured before and after Gd-EOB-DTPA administration, and
various calculations were made, including absolute and percentage reduction in T1 value and coefficient of variation. The t-test was used to
compare these values between the two groups, and the efficacy of T1 mapping values for differential diagnosis of HCC and DN was evaluated
using the receiver operating characteristic curve (ROC).
Results:
The study found that T1pre, T1hp, ΔT1, ΔT1%, and CV in the HCC group were significantly higher than in the DN group (p < 0.01). The accuracy of
T1hp, ΔT1, and CVT1-hp in identifying HCC from DN was high, with AUCs of 0.955, 0.910, and 0.932, respectively. ΔT1% also had some accuracy,
with an AUC of 0.818.
Conclusion:
Our results provide preliminary evidence that Gd-EOB-DTPA-enhanced MRI T1 mapping, can be a valuable tool in diagnosing and differentiating
between HCC and DN.