◆ Breast Ultrasound Image Retrieval System

 - Decision support system for better differentiation
   of malignant and benign lesions
 - Provide computer-generated malignancy score
   and the retrieved images from biopsy-proved
   1,000 data..

◆ Low Positive Biopsy Rate

 The overall negative-to-positive biopsy ratio was
 5:1. From a medical and economic viewpoint, this
 is an unacceptable high negative-to-positive
 biopsy ratio.
- T. Stavros, et al., Solid breast nodules : use of
 sonography to distinguish between benign and
 malignant lesions, Radiology, vol. 196, no. 1, pp.
 123-134, 1995 .

◆ Malignancy Score (0 ~ 100)

  - 100 : highly suggestive of malignancy.
  - 0 : lowly suggestive of malignancy.
      (highly suggestive of benignancy)

◆ Practical use

  - Provide breast US image retrieval
    data for clinic counseling.
  - Provide explanation data about the
    relevance of biopsy.
  - Provide digital image and patient
    managements using breast US
    dedicated Report.

◆ Similar Image Retrieval

 - ROI image vs. full size image
 - Biopsy-proven DB : about 1,000 cases
   - Malignant cases : about 400 .
   - Benign cases : about 600
 - In situations in which the radiologist and the
   computer disagree, this is useful solutions.
 - Computer-generated malignant score is
   calculated based on the retrieved images.
 - User can infer what ' s the basis of computer ' s
   malignancy score.