Table 2 Summary of characteristics of the in-house dataset
From: A YOLO-based AI system for classifying calcifications on spot magnification mammograms
Characteristics | No. of cases |
|---|---|
No. of spot magnification images* | 1269 |
Age at examination (y)†| 29–81 (54.4 ± 8.42) |
Mean time interval between image acquisition and biopsy (d)‡ | 48.71 (46.3, 51.1) |
BI-RADS assessment | n (%) |
 4A (low suspicion for malignancy) | 435 (68.4) |
 4B (moderate suspicion for malignancy) | 178 (27.99) |
 4C (high suspicion for malignancy) | 23 (3.61) |
Histologic type of malignancy | n (%) |
 Invasive ductal carcinoma | 61 (29.9) |
 Invasive lobular carcinoma | 3 (1.5) |
 Ductal carcinoma in situ | 140 (68.6) |