A Novel Method for the Generation of Realistic Lung Nodules Visualized Under X-Ray Imaging

Area of Science:

• Medical Imaging
• Preclinical Research

Background:

• Image-guided diagnosis and treatment of lung lesions require realistic evaluation environments.
• Standardized methods are needed to assess new image-guided solutions for lung lesions.

Purpose of the Study:

• To establish realistic phantom and preclinical environments for evaluating image-guided lung lesion solutions.
• To create implanted lung nodules morphologically similar to real lung lesions under X-ray imaging.

Main Methods:

• Injected various materials into a phantom swine lung to mimic real lung lesions.
• Evaluated n-butyl cyanoacrylate (n-BCA) and ethiodized oil for radiopacity and similarity to lung lesions.
• Assessed injection techniques for ease of implantation and generation of malignant-like features.

Main Results:

• A combination of n-BCA and ethiodized oil showed the most similar radiopacity to real lung lesions.
• Generated implanted nodules with features mimicking malignant lesions, including pleural extensions and spiculations.
• Successfully created nodules mimicking ground glass opacity using n-BCA alone.

Conclusions:

• Recommendations for materials (n-BCA and ethiodized oil) and techniques are provided.
• These recommendations can help establish a standard for evaluating image-guided solutions.
• Facilitates refinement of algorithms in phantom and animal studies using realistic lung nodules.