An efficient pyramid scene parsing network with multi-scale feature fusion for liver segmentation in magnetic resonance imaging - Report - MDSpire

An efficient pyramid scene parsing network with multi-scale feature fusion for liver segmentation in magnetic resonance imaging

  • By

  • Monisha Perumal

  • Jagadeesh Gopal

  • May 11, 2026

  • 0 min

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Clinical Report: A Novel Pyramid Scene Parsing Model for Liver Segmentation

Overview

The PSP-EffB0-MSFF model demonstrates high accuracy in liver segmentation from MRI scans, achieving significant performance metrics across two datasets. This automated approach addresses the challenges of manual segmentation, providing reliable and consistent results.

Background

Accurate liver segmentation is crucial for diagnosing and managing liver diseases, which are on the rise due to lifestyle changes. Manual segmentation is labor-intensive and subject to variability among operators, highlighting the need for effective automated solutions. The proposed model leverages advanced deep learning techniques to enhance segmentation accuracy in MRI imaging.

Data Highlights

DatasetIoUDice ScoreHausdorff DistanceAverage Symmetric Surface Distance
DLDS0.905 ± 0.0380.913 ± 0.097.31 ± 3.912.66 ± 3.06
CirrMRI600+0.86 ± 0.010.90 ± 0.026.20 ± 0.609.80 ± 1.50

Key Findings

  • The PSP-EffB0-MSFF model utilizes EfficientNetB0 to reduce computational costs.
  • Achieved an intersection over union (IoU) of 0.905 on the DLDS dataset.
  • On the CirrMRI600+ dataset, the model achieved a Dice score of 0.90.
  • Demonstrated a Hausdorff distance of 6.20 ± 0.60 on the CirrMRI600+ dataset.
  • The model requires 14.91 GFLOPs for processing.

Clinical Implications

The PSP-EffB0-MSFF model can significantly enhance the efficiency of liver segmentation in clinical practice, reducing the burden of manual annotation for radiologists. Its high accuracy supports better decision-making in the management of liver diseases, including surgical planning and treatment evaluation.

Conclusion

The proposed model offers a promising automated solution for liver segmentation in MRI scans, demonstrating reliable performance across multiple datasets. This advancement could facilitate improved clinical outcomes in liver disease management.

Related Resources & Content

  1. European Radiology, 2023 -- Automated Liver Segmentation via MRI for Anatomical Analysis, Volume Measurement, and Radiomic Feature Extraction
  2. npj Digital Medicine, 2025 -- Multi-View Collaborative Learning for Semi-Supervised CT Segmentation of Liver Tumors in Resource-Limited Environments Using Foundation Model Guidance
  3. Advancing Accurate Liver and Tumor Segmentation through 2.5D Convolutional Neural Network Models, 2020
  4. npj Digital Medicine, 2026 -- Hierarchical Mamba-CNN Transducer for Enhanced Liver Tumor Segmentation in CT Imaging
  5. Clinical Practice Guidelines, 2025 -- EASL CPG Management HCC
  6. Abbreviated MRI for Hepatocellular Carcinoma Surveillance – A Systematic Review and Meta-analysis, 2024
  7. Clinical Practice Guidelines
  8. Abbreviated MRI for Hepatocellular Carcinoma Surveillance – A Systematic Review and Meta-analysis - ScienceDirect
  9. Dynamic [99mTc]Tc-mebrofenin SPECT/CT in preoperative planning of liver resection: a prospective study | Scientific Reports

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