Lardennois B, Ziade A, Walter K
Département d'Urologie, CHU de Reims.
Prog Urol. 1991 Feb;1(1):139-48.
A number of technical difficulties are encountered in the ultrasonographic detection of renal stones which unfortunately limit its performance. The margin of error of firing in extracorporeal shock-wave lithotripsy (ESWL) must be reduced to a minimum. The role of the ultrasonographic monitoring during lithotripsy is also essential: continuous control of the focussing of the short-wave beamand assessment if the quality of fragmentation. The authors propose to improve ultrasonographic imaging in ESWL by means of intraoperative colour processing of the stone. Each shot must be directed to its target with an economy of vision avoiding excessive fatigue. The principle of the technique consists of digitalization of the ultrasound video images using a Macintosh Mac 2 computer. The Graphis Paint II program is interfaced directly with the Quick Capture card and recovers the images on its work surface in real time. The program is then able to attribute to each of these 256 shades of grey any one of the 16.6 million colours of the Macintosh universe with specific intensity and saturation. During fragmentation, using the principle of a palette, the stone changes colour from green to red indicating complete fragmentation. A Color Space card converts the digital image obtained into a video analogue source which is visualized on the monitor. It can be superimposed and/or juxtaposed with the source image by means of a multi-standard mixing table. Colour processing of ultrasonographic images in extracoporeal shockwave lithotripsy allows better visualization of the stones and better follow-up of fragmentation and allows the shockwave treatment to be stopped earlier. It increases the stone-free performance at 6 months. This configuration will eventually be able to integrate into the ultrasound apparatus itself.
在肾结石的超声检测中会遇到一些技术难题，不幸的是，这些难题限制了其性能。体外冲击波碎石术（ESWL）中发射的误差范围必须降至最低。碎石术中超声监测的作用也至关重要：持续控制短波束的聚焦，并评估碎石质量。作者提议通过对结石进行术中彩色处理来改善ESWL中的超声成像。每次发射都必须以节省视觉的方式对准目标，避免过度疲劳。该技术的原理是使用Macintosh Mac 2计算机对超声视频图像进行数字化处理。Graphis Paint II程序直接与Quick Capture卡连接，并在其工作界面上实时恢复图像。然后，该程序能够将Macintosh系统中的1660万种颜色中的任何一种赋予这256种灰度中的每一种，并具有特定的强度和饱和度。在碎石过程中，利用调色板原理，结石颜色从绿色变为红色，表示完全破碎。Color Space卡将获取的数字图像转换为视频模拟源，在监视器上显示。它可以通过多标准混合台与源图像叠加和/或并列。体外冲击波碎石术中超声图像的彩色处理可以更好地显示结石，更好地跟踪碎石情况，并能更早地停止冲击波治疗。它提高了6个月时的无结石率。这种配置最终将能够集成到超声设备本身中。
