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Related Experiment Video

Updated: Feb 17, 2026

Author Spotlight: A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules

Author Spotlight: A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules

Published on: May 19, 2023

Content-based image retrieval for Lung Nodule Classification Using Texture Features and Learned Distance Metric.

Guohui Wei¹, Hui Cao², He Ma³

¹School of Science and Engineering, Shandong University of Traditional Chinese medicine, Jinan, 250355, China. bmie530@163.com.

Journal of Medical Systems

|November 30, 2017

Summary

A novel two-step content-based image retrieval (CBIR) scheme improves lung nodule diagnosis by measuring semantic and visual similarity. This method aids in differentiating benign from malignant lung nodules on CT scans.

Keywords:

Computer-aided diagnosis Content-based image retrieval Lung nodule Similarity metric Texture feature

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$Multifractal Spectrum Analysis for Assessing Pulmonary Nodule Malignancy$

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Published on: January 10, 2025

Area of Science:

Medical Imaging
Computer-Aided Diagnosis
Artificial Intelligence

Background:

Accurate differentiation of benign and malignant lung nodules on CT scans is crucial for patient management.
Content-based image retrieval (CBIR) offers a promising approach for analyzing lung nodule characteristics.

Purpose of the Study:

To introduce a novel two-step CBIR scheme (TSCBIR) for enhanced computer-aided diagnosis of lung nodules.
To develop and evaluate new similarity metrics for lung nodule comparison.

Main Methods:

The proposed TSCBIR scheme utilizes two similarity metrics: semantic relevance and visual similarity.
The first step involves retrieving K most similar regions of interest (ROIs) based on semantic relevance.
The second step weights retrieved ROIs by visual similarity to predict malignancy likelihood.

Main Results:

A dataset of 366 nodule ROIs from LIDC-IDRI CT scans was utilized for validation.
Three texture feature groups were employed to represent nodule ROIs.
The TSCBIR scheme demonstrated significant performance improvements compared to existing classifiers.

Conclusions:

The proposed TSCBIR method effectively measures nodule similarity for improved lung nodule diagnosis.
This approach shows potential for enhancing the accuracy of differentiating malignant from benign lung lesions on CT images.