Department of Mechanical Engineering, McMaster University, Hamilton, ON, Canada.
School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada.
Sci Rep. 2020 Apr 23;10(1):6905. doi: 10.1038/s41598-020-63728-8.
Hemodynamics quantification is critically useful for accurate and early diagnosis, but we still lack proper diagnosticmethods for many cardiovascular diseases. Furthermore, as most interventions intend to recover the healthy condition, the ability to monitor and predict hemodynamics following interventions can have significant impacts on saving lives. Predictive methods are rare, enabling prediction of effects of interventions, allowing timely and personalized interventions and helping critical clinical decision making about life-threatening risks based on quantitative data. In this study, an innovative non-invasive imaged-based patient-specific diagnostic, monitoring and predictive tool (called C3VI-CMF) was developed, enabling quantifying (1) details of physiological flow and pressures through the heart and circulatory system; (2) heart function metrics. C3VI-CMF also predicts the breakdown of the effects of each disease constituents on the heart function. Presently, neither of these can be obtained noninvasively in patients and when invasive procedures are undertaken, the collected metrics cannot be by any means as complete as the ones C3VI-CMF provides. C3VI-CMF purposefully uses a limited number of noninvasive input parameters all of which can be measured using Doppler echocardiography and sphygmomanometer. Validation of C3VI-CMF, against cardiac catheterization in forty-nine patients with complex cardiovascular diseases, showed very good agreement with the measurements.
血流动力学定量分析对于准确和早期诊断至关重要,但我们仍然缺乏许多心血管疾病的适当诊断方法。此外,由于大多数干预措施旨在恢复健康状态,因此能够监测和预测干预后的血流动力学变化可以对挽救生命产生重大影响。预测方法很少,能够预测干预措施的效果,实现及时和个性化的干预,并根据定量数据对危及生命的风险做出关键的临床决策。在这项研究中,开发了一种创新的基于影像的患者特异性诊断、监测和预测工具(称为 C3VI-CMF),能够定量分析(1)心脏和循环系统中生理流动和压力的细节;(2)心脏功能指标。C3VI-CMF 还可以预测每种疾病成分对心脏功能影响的失效。目前,这些都无法在患者中进行非侵入性地获取,而当进行侵入性程序时,所收集的指标无论如何都不能像 C3VI-CMF 提供的那样完整。C3VI-CMF 有意使用数量有限的非侵入性输入参数,所有这些参数都可以使用多普勒超声心动图和血压计进行测量。对 49 名患有复杂心血管疾病的患者进行的 C3VI-CMF 与心导管检查的验证研究表明,该方法与测量结果非常吻合。