评估超声波系统的成像性能,使用随机的低声波球体幻影与自由手扫描
Baihui Yu1, Dufan Wu2, Cristel Baiu3
1Department of Radiology, The University of Chicago, Chicago, Illinois, USA.
Medical physics
|January 15, 2026
概括
使用随机低音球幻影 (RHSP) 进行超声质量保证的自动化方法提供了精确的损伤检测度测量. 这种技术是稳固的,可用于临床使用,简化性能评估.
科学领域:
- 医疗成像医学成像
- 超声波技术 超声波技术
- 质量保证 质量保证 质量保证
背景情况:
- 目前的超声波质量保证 (QA) 和质量控制 (QC) 方法往往是手动的,主观的,缺乏可重复性.
- 需要自动化方法来进行更定量和可靠的超声波系统评估.
- 随机低音球幻影 (RHSP) 已被用于通过损伤信号与噪声比 (LSNR) 来评估损伤的检测能力.
研究的目的:
- 开发和验证适用于临床环境中自由手扫描的RHSP自动化分析方法.
- 评估超声波系统的性能,并确定影响LSNR测量的变化源.
主要方法:
- 开发了一种自动化算法,用于分析自由手RHSP扫描中的体积图像.
- 使用深度适应值和计算的LSNR. 分段的低声球体.
- 通过评估LSNR变异与成像参数和扫描技术的变化来验证该方法.
主要成果:
- LSNR测量与视觉评估和预期的性能趋势有很好的相关性.
- 更高的名义频率,波成像,增加的传输功率和减少的动态范围改善了LSNR.
- 在LSNR的变化很低 (2.5%-6.9%的运营商内部,5.2%的运营商间,5.5%的翻译速度),显示出稳定性.
结论:
- 自动化RHSP分析方法提供了超声波病变检测能力的准确,稳定和定量评估.
- 该方法在临床环境中很实用,并且对自由手扫描的变化有很强的抵抗力.
- 这种方法简化了超声波性能评估,可以整合到常规的QA/QC中.
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