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美《生物医学电子学》第15卷第11期(1980年)报道:美国梅奥医院的立体X线扫描仪叫做动力立体重现扫描仪(DSR),在开始应用后可废除探查性手术。 DSR不象X线扫描仪那样,可以横切人体,而是从数学上剖视人体,把活动中的人器官的全貌显示出来。DSR装置是在需要的时间内把检查台通过一个环形架,从头到脚扫描病人的全身。检查时,病人卧于X线半透明的检查台上,检查台被推入到检查室墙壁上的一个圆形开口中。在检查室内,病人身体周围是直径为15英寸、重3吨的拱形架。28个X线的枪形管半圆形排列在拱架上,当拱架转动时,可连续快速发出射线,每秒60次,而拱架每经4秒钟围绕病人旋转一次。扫描完成时,病人可返回病房,这样对医生提供了供研究用的跳动心脏和动脉分支的60,000个立体断层x线影象。
The United States, "Biomedical Electronics Volume 15, No. 11 (1980) reported: Mayo Hospital, the United States three-dimensional X-ray scanner is called dynamic three-dimensional reconstruction of the scanner (DSR), abolished the exploratory surgery after the beginning of the application. Unlike X-ray scanners, DSRs can cross the human body and instead mathematically profile the human body to visualize the full range of human organs in motion. The DSR unit scans the patient’s entire body from head to toe through a ring rack within the required time. During the examination, the patient was lying on a translucent X-ray examination table which was pushed into a circular opening in the wall of the examination room. Inside the examination room, the patient’s body is surrounded by 15-inch diameter and 3-ton arches. The 28 X-ray guns are arranged semi-circularly on the arches, radiating continuously and rapidly 60 times per second as the arches rotate and the arches rotate about the patient every 4 seconds. Upon completion of the scan, the patient may return to the ward, thus providing the physician with 60,000 tomosynthesis images of the beating heart and arterial branches for the study.