New imaging techniques

作为心脏功能磁共振成像工作的继续，我们与两个临床小组合作进行了患者测试，比较了位移编码的MRI评估(Dense)和回声心动图评估，结果显示新的MRI评估显著提高了检测异常功能的敏感性。 在一个相关的项目中，我们开始将心脏灌注和功能成像结合起来，并在猪缺血模型上获得了第一个结果。 使用类似的技术，我们在人类身上完成了第一项关于颈动脉区域顺应性模式的验证性研究。这是研究区域顺应性分布与动脉粥样硬化之间关系的基础。 在X射线成像领域，我们建造了一台台式扫描仪，采用了一种将图像对比度与微观结构相关联的新技术，并获得了演示这一原理的第一批数据。

As a continuation of the work in MR imaging of cardiac function, we performed patient tests comparing displacement-encoded MRI assessment (DENSE) with echo-cardiography assessment in collaboration with two clinical groups, and showed that the new MRI assessment significantly improves the sensitivity in detecting abnormal function. In a related project we began to combine cardiac perfusion and function imaging and obtained first results in a pig ischemia model. Using a similar technique, we finished the first validation study in humans on the carotid artery regional compliance pattern. This serves as the basis to look at the relationship between regional compliance distribution and atherosclerosis. In the area of x-ray imaging, we constructed a benchtop scanner of a new technique that relates the image contrast to microscopic structures, and obtained first data demonstrating the principle.