Quantitative ultrasound in cancer imaging

Area of Science:

• Medical Imaging
• Biomedical Engineering
• Acoustics

Background:

• Ultrasound is a versatile, portable, and cost-effective imaging tool with diverse clinical applications.
• Established ultrasound modes include B-mode, M-mode, Doppler, harmonic, elastography, and contrast-agent imaging.
• Quantitative ultrasound (QUS) is an emerging technique analyzing echo signal power spectra for tissue characterization.

Purpose of the Study:

• To discuss the attributes of quantitative ultrasound (QUS) for cancer imaging.
• To explore QUS-based methods for improved tumor detection and assessment.
• To illustrate QUS applications in imaging prostate cancer and lymph node metastases.

Main Methods:

• Analysis of the power distribution as a function of frequency in received ultrasound echo signals.
• Exploitation of spectral parameters derived from echo signals for tissue characterization.
• Application of QUS methods to image primary prostate cancer and metastatic lymph nodes.

Main Results:

• QUS provides quantitative tissue characterization beyond conventional ultrasound imaging.
• Spectral parameters derived from QUS can distinguish between different tissue types.
• QUS demonstrates potential for enhanced visualization and assessment of cancerous tissues.

Conclusions:

• Quantitative ultrasound (QUS) offers a promising approach for advanced cancer imaging.
• QUS methods can improve the detection and characterization of tumors.
• Further research into QUS applications may enhance oncological diagnostics.