Abstract
Objectives
Parenchymal-sparing hepatectomy (PSH) is recommended in patients with colorectal liver metastases (CRLM). Based on the principle of PSH, to investigate the impact of anatomical resection (AR) and non-anatomic resection (NAR) on the outcome of CRLM and to evaluate the potential prognostic impact of three peritumoral imaging features.
Methods
Fifty-six patients who had abdominal gadoxetic acid-enhanced magnetic resonance imaging (MRI) before CRLM surgery were included in this retrospective research. Peritumoral early enhancement, peritumoral hypointensity on hepatobiliary phase (HBP), and biliary dilatation to the CRLM at MRI were evaluated. Survival estimates were calculated using the Kaplan-Meier method, and multivariate analysis was conducted to identify independent predictors of liver recurrence-free survival (LRFS), recurrence-free survival (RFS) and overall survival (OS).
Results
NAR had a lower 3-year LRFS compared with AR (36.6% vs. 78.6%, p = 0.012). No significant differences were found in 3-year RFS (34.1% vs. 41.7%) and OS (61.7% vs. 81.3%) (p > 0.05). In NAR group, peritumoral early enhancement was associated with poor LRFS (p = < 0.001, hazard ratio [HR] = 6.260; 95% confidence interval [CI], 2.322,16.876]) and poor RFS (p = 0.035, HR =2.516; 95% CI, 1.069,5.919). No independent predictors of CRLM were identified in the AR group.
Conclusions
In patients with CRLM, peritumoral early enhancement was a predictor of LRFS and RFS after NAR according to the principle of PSH.
Graphical abstract
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Data availability
The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
Abbreviations
- CRLM:
-
Colorectal liver metastasis
- PSH:
-
Parenchymal-sparing hepatectomy
- AR:
-
Anatomic resection
- NAR:
-
Non-anatomic resection
- HBP:
-
Hepatobiliary phase
- MRI:
-
Magnetic resonance imaging
- CT:
-
Computed tomography
- MDT:
-
Multidisciplinary team
- CEA:
-
Carcinoembryonic antigen
- AFP:
-
Alpha-fetoprotein
- IQR:
-
Interquartile range
- TR:
-
Time of repetition
- TE:
-
Time of echo
- LAVA-XV:
-
Liver acquisition with volume acceleration-extended volume
- LRFS:
-
Liver recurrence-free survival
- RFS:
-
Recurrence-free survival
- OS:
-
Overall survival
- HR:
-
Hazard ratio
- CI:
-
Confidence interval
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Funding
This study was supported by the National Natural Scientific Foundation of China [Grant No. 81901909] and Program for Youth Innovation in Future Medicine, Chongqing Medical University [Grant No. W0096/03020202Y2021284].
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LL: collected, analyzed and interpreted the patient data regarding to survival, performed the statistical analysis and wrote the manuscript. LHX: collected the patient data and analyzed the patient data regarding to survival, performed the statistical analysis and wrote the manuscript. YZ: analyzed and interpreted the patient data. QSL: analyzed and interpreted the patient data. XL: performed the statistical analysis. HLT: was a major contributor in editing the manuscript. JMW: was a major contributor in editing the manuscript. XFZ: collected the patient data. PY: analyzed the patient data regarding to survival. YM: designed the study, interpreted the data, and was a major contributor in writing the manuscript. All authors read and approved the final manuscript.
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Liu, L., Xie, L., Zhou, Y. et al. Outcomes of different parenchymal-sparing hepatectomies in patients with colorectal liver metastases and prognostic impact of peritumoral imaging features. Abdom Radiol 48, 3728–3745 (2023). https://doi.org/10.1007/s00261-023-04044-3
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DOI: https://doi.org/10.1007/s00261-023-04044-3