Abstract
Objectives
To compare the efficacy of computed tomography volumetry (CTV), technetium99m galactosyl-serum-albumin (99mTc-GSA) scintigraphy, and gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid-enhanced MRI (EOB-MRI) in estimating the liver fibrosis (LF) stage in patients undergoing liver resection.
Methods
This retrospective study included 91 consecutive patients who had undergone preoperative dynamic CT and 99mTc-GSA scintigraphy. EOB-MRI was performed in 76 patients. CTV was used to measure the total liver volume (TLV), spleen volume (SV), normalised to the body surface area (BSA), and liver-to-spleen volume ratio (TLV/SV). 99mTc-GSA scintigraphy provided LHL15, HH15, and GSA indices. The liver-to-spleen ratio (LSR) was calculated in the hepatobiliary phase of EOB-MRI. Hyaluronic acid and type 4 collagen levels were measured in 65 patients. Logistic regression and receiver operating characteristic (ROC) analyses were performed to identify useful parameters for estimating the LF stage and laboratory data.
Results
According to the multivariable logistic regression analysis, SV/BSA (odds ratio [OR], 1.01; 95% confidence interval [CI], 1.003–1.02; p = 0.011), LSR (OR, 0.06; 95%CI, 0.004–0.70; p = 0.026), and hyaluronic acid (OR, 1.01; 95%CI, 1.001–1.02; p = 0.024) were independent variables for severe LF (F3–4). Combined SV/BSA, LSR, and hyaluronic acid correctly estimated severe LF, with an AUC of 0.91, which was significantly larger than the AUCs of the GSA index (AUC = 0.84), SV/BSA (AUC = 0.83), or LSR (AUC = 0.75) alone.
Conclusions
Combined CTV, EOB-MRI, and hyaluronic acid analyses improved the estimation accuracy of severe LF compared to CTV, EOB-MRI, or 99mTc-GSA scintigraphy individually.
Clinical relevance statement
The combined analysis of spleen volume on CT volumetry, liver-to-spleen ratio on gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid-enhanced MRI, and hyaluronic acid can identify severe liver fibrosis associated with a high risk of liver failure after hepatectomy and recurrence in patients with hepatocellular carcinoma.
Key Points
• Spleen volume of CT volumetry normalised to the body surface area, liver-to-spleen ratio of EOB-MRI, and hyaluronic acid were independent variables for liver fibrosis.
• CT volumetry and EOB-MRI enable the detection of severe liver fibrosis, which may correlate with post-hepatectomy liver failure and complications.
• Combined CT volumetry, gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid-enhanced MRI (EOB-MRI), and hyaluronic acid analyses improved the estimation of severe liver fibrosis compared to technetium99m galactosyl-serum-albumin scintigraphy.
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Abbreviations
- ALT:
-
Alanine aminotransferase
- APRI:
-
Aspartate aminotransferase-platelet ratio index
- AST:
-
Aspartate aminotransferase
- BMI:
-
Body mass index
- BSA:
-
Body surface area
- CI:
-
Confidence interval
- Cr:
-
Creatinine
- EOB-MRI:
-
Gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid-enhanced MRI
- FIB-4:
-
Fibrosis index based on four factors; fibrosis-4 score
- CTV:
-
CT volumetry
- Gd:
-
Gadolinium
- Gd-EOB-DTPA:
-
Gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic acid
- HH15:
-
Uptake ratio of the heart at 15 min to that at 3 min
- HCC:
-
Hepatocellular carcinoma
- ICC:
-
Intraclass correlation
- ICG:
-
Indocyanine green
- ICG-R15:
-
Indocyanine green retention rates at 15 min after injection
- INR:
-
International normalised ratio
- LF:
-
Liver fibrosis
- LHL15:
-
Uptake ratio of the liver to the liver plus heart at 15 min
- LSR:
-
Liver-to-spleen ratio
- MDCT:
-
Multidetector computed tomography
- MELD:
-
Model for end-stage liver disease score
- OR:
-
Odds ratio
- Plt:
-
Platelet count
- SI:
-
Signal intensity
- SPECT:
-
Single-photon emission computed tomography
- SV:
-
Splenic volume
- TLV:
-
Total liver volume
- TLV/SV:
-
Ratio of TLV to SV
- 99 mTc-GSA:
-
Technetium99m galactosyl-serum-albumin
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Acknowledgements
We would like to thank all the medical staff involved in this study.
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The scientific guarantor of this publication is Masahiro Okada.
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Statistics and biometry
We consulted statistical experts in the preparation of this manuscript.
Hirotsugu Yasuda, statistician Kondo P.P. Inc.
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Informed consent was waived by the Institutional Review Board, given the study’s retrospective nature.
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Institutional Review Board approval was obtained (Nihon University, Itabashi Hospital, RK-201110-12).
Study subjects or cohorts overlap
Two of the 91 patients in this study have been previously reported in Tago K et al (2022) European Radiology. 32:7555–7565. https://doi.org/10.1007/s00330-022-08852-x
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• Retrospective
• Observational study
• Performed at one institution
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Nakazawa, Y., Okada, M., Hyodo, T. et al. Comparison between CT volumetry, technetium99m galactosyl-serum-albumin scintigraphy, and gadoxetic-acid-enhanced MRI to estimate the liver fibrosis stage in preoperative patients. Eur Radiol 34, 2212–2222 (2024). https://doi.org/10.1007/s00330-023-10219-9
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DOI: https://doi.org/10.1007/s00330-023-10219-9