State (Beijing) Medical Technology Co., Ltd.
State (Beijing) Medical Technology Co., Ltd.
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128 E Diagnostic Baby Color Doppler Ultrasound Scanner B / M Display Mode Customized
Performance requirements in grayscale imaging mode
Color ultrasound in the gray scale imaging mode of the performance of the probe:
| Performance | Probe type and nominal frequency | ||
| 2.0≤f＜5.0 | 5.0≤f＜8.0 | 5.0≤f＜10.0 | |
| a) Robe type, model | Convex array (model TC60A) | Cavity (model TC10A) | Line array (model TL40A) |
| b) Robe nominal frequency (MHz) | 3.5 | 5.5 | 7.5 |
| c)Robe depth(mm) | ≥160 | ≥80 | ≥50 |
| d) Lateral resolution (mm) | ≤3(depth≤80) ≤4(80＜depth≤130) | ≤2(depth≤40) | ≤2(depth≤40) |
| e) Axial resolution (mm) | ≤2(depth≤80) ≤3(80＜depth≤130) | ≤1(depth≤40) | ≤1(depth≤50) |
| f) Blind zone (mm) | ≤5 | ≤5 | ≤3 |
| g) Horizontal geometric position accuracy (%) | ≤15 | ≤20 | ≤10 |
| h) Longitudinal geometric position accuracy (%) | ≤10 | ≤10 | ≤5 |
| i) Slice thickness (mm) | ≤7 | ≤5 | ≤5 |
| j) Perimeter and area measurement deviations (%) | ≤±20 | ≤±20 | ≤±20 |
| k) M mode time display error (%) | ≤±10 | ≤±10 | ≤±10 |
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