Related Experiment Videos
Optical tomography of the breast using a multi-channel time-resolved imager
Tara Yates1, Jeremy C Hebden, Adam Gibson
1Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK.
Physics in Medicine and Biology
|May 20, 2005
Summary
Time-resolved optical tomography successfully detected most breast lesions in a pilot study. However, current methods need improvement for accurate lesion characterization and distinguishing benign from malignant tissues.
Area of Science:
- Biomedical Optics
- Medical Imaging
- Breast Cancer Detection
Background:
- Optical tomography offers a non-ionizing imaging modality for breast tissue.
- Accurate detection and characterization of breast lesions are crucial for timely diagnosis.
Purpose of the Study:
- To evaluate a time-resolved optical tomography system for breast imaging.
- To assess the system's capability in detecting and characterizing breast lesions.
Main Methods:
- Utilized a time-resolved optical tomography system with an iterative, nonlinear reconstruction algorithm.
- Employed mean photon flight time measurements compared to a homogeneous reference phantom.
- Conducted studies on healthy volunteers and patients with various breast lesions.
Main Results:
- Successfully detected 17 out of 19 breast lesions.
- Demonstrated repeatable heterogeneity in healthy breast optical images over time.
- Identified limitations in quantitating optical parameters and morphological information.
Conclusions:
- Time-resolved optical tomography shows promise for breast lesion detection.
- Current methodology requires enhancement for precise lesion characterization and differentiation of benign from malignant tissues.