Ballistic gel was investigated as a tissue-mimicking material in an anthropomorphic cardiac phantom for ultrasound imaging. The gel was tested for its acoustic properties and its compatibility with conventional plastics molding techniques. Speed of sound and attenuation were evaluated in the range 2–12 MHz. The speed of sound was 1537 ± 39 m/s, close to typical values for cardiac tissue (∼1576 m/s). The attenuation coefficient was 1.07 dB/cm·MHz, within the range of values previously reported for cardiac tissue (0.81–1.81 dB/cm·MHz). A cardiac model based on human anatomy was developed using established image segmentation processes and conventional plastic molding techniques. Key anatomic features were observed, captured and identified in the model using an intracardiac ultrasound imaging system. These favorable results along with the material's durability and processes that allow for repetitive production of detailed whole-heart models at low cost are promising. There are numerous applications for geometrically complex phantoms in research, training, device development and clinical use.

弹道凝胶被研究作为用于超声成像的拟人心脏模型中的组织模拟材料。对该凝胶的声学特性及其与传统塑料成型技术的兼容性进行了测试。在 2-12 MHz 范围内评估声速和衰减。声速为 1537 ± 39 m/s，接近心脏组织的典型值 (~1576 m/s)。衰减系数为 1.07 dB/cm·MHz，在先前报告的心脏组织值范围内 (0.81–1.81 dB/cm·MHz)。使用已建立的图像分割过程和传统的塑料成型技术开发了基于人体解剖结构的心脏模型。使用心内超声成像系统在模型中观察、捕获和识别关键解剖特征。这些有利的结果连同材料' 允许以低成本重复生产详细的全心脏模型的耐用性和工艺很有前景。几何复杂的体模在研究、培训、设备开发和临床使用中有许多应用。