Goodsitt M M, Baron R L
Department of Radiology, University of Washington School of Medicine, Seattle.
Invest Radiol. 1991 Feb;26(2):162-4. doi: 10.1097/00004424-199102000-00013.
A phantom was designed and constructed for in vitro studies of gallstones using a computed tomographic (CT) scanner. A primary objective of the design was to permit studies of multiple gallstones in a single CT slice. This was accomplished by incorporating in the phantom removable compartments that contain vertically oriented, cone-shaped voids for holding the gallstones and surrounding fluid medium. A slice through the center of the phantom passes through the apex of each cone-shaped holder, and hence through the center of each gallstone. The main body of the phantom is made of water-mimicking plastic, and each compartment can accommodate gallstones ranging up to 3 cm in diameter. Initial experience with the phantom has shown it to be a successful design.
设计并制造了一种用于使用计算机断层扫描（CT）扫描仪对胆结石进行体外研究的体模。该设计的一个主要目标是允许在单个CT切片中研究多个胆结石。这是通过在体模中加入可移动隔室来实现的，这些隔室包含垂直定向的锥形空隙，用于容纳胆结石和周围的流体介质。穿过体模中心的切片穿过每个锥形固定器的顶点，从而穿过每个胆结石的中心。体模的主体由模拟水的塑料制成，每个隔室可容纳直径达3厘米的胆结石。对该体模的初步经验表明它是一个成功的设计。
