Abstract
Objective: We present a new photoacoustic tomography system that provides visualization of angiographic features in a human breast with mammogram-like images. Methods: The system images a mildly compressed breast, from both top and bottom, using two 128-element, 2.25 MHz linear transducer arrays and line optical fiber bundles. The mild compression is achieved using plastic films, which is a more comfortable experience for the patient compared to rigid metal plates used in a traditional mammogram. Results: We could image a D cup-sized breast of 7 cm thickness within 1 minute and achieve a spatial resolution of around 1 mm in all directions. Conclusion: Our system possesses the benefits of portability, speedy scanning, and patient comfort. The craniocaudal-view images can be easily correlated with existing imaging modalities for data interpretation. Significance: Early cancer detection plays a critical role in overall cancer survival rate. Our system may address the limitations of mammogram and offer a radiation-free screening technique for patients with dense breasts.
| Original language | English |
|---|---|
| Article number | 8805399 |
| Pages (from-to) | 1321-1327 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Biomedical Engineering |
| Volume | 67 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2020 |
Keywords
- breast cancer
- mammogram
- Photoacoustic computed tomography (PAT)
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