US elastography of breast and prostate lesions

Area of Science:

• Medical Imaging
• Biophysics
• Oncology

Background:

• Elastography measures relative tissue stiffness.
• Ultrasonographic elastography (sonoelastography) is an emerging imaging technique.
• Tumors often exhibit different biomechanical properties (stiffness) than surrounding tissues.

Purpose of the Study:

• To review the clinical applications of ultrasonographic elastography for breast and prostate lesion imaging.
• To illustrate the sonoelastographic appearances of various breast and prostate pathologies.
• To highlight potential interpretation pitfalls in elastography.

Main Methods:

• Review of sonoelastographic appearances of common breast lesions (fibroadenomas, cysts, carcinomas, lymph nodes, hematomas).
• Illustration of ultrasonographic elastographic findings in the normal prostate gland, prostate carcinomas, and benign prostate hyperplasia.
• Discussion of vibration and compression sonoelastography techniques.

Main Results:

• Sonoelastography visualizes tissue stiffness differences, providing contrast for lesions.
• Distinct elastographic patterns are observed for various benign and malignant breast and prostate conditions.
• Potential for false-positive and false-negative interpretations exists.

Conclusions:

• Ultrasonographic elastography shows potential for differentiating breast and prostate lesions based on stiffness.
• Further research is needed as sonoelastography is not yet standard clinical practice.
• Understanding elastographic appearances and pitfalls is crucial for accurate interpretation.