From: Is B-mode ultrasound alone a sufficient screening tool for carotid stenosis? A pilot study
 | Elective ultrasound result |  | ||
---|---|---|---|---|
 | Positive (≥50%) | Negative (<50%) |  | |
Result of reinterpretation | Positive (≥50%) | 32 | 56 | 88 |
Negative (<50%) | 0 | 104 | 104 | |
 | 32 | 160 | 192 |