Question

医学中，基线CT扫描和基线筛查什么意思？

例：All baseline CT scans were screened for nodules.
At baseline screening, 4026 nodules were detected in 1729 participants,

Answer 1

颅脑CT扫描常取仰卧位，先扫定位片，然后确定扫描范围，再行横断位扫描。扫描所用基线多为听眦线(即外眦与外耳道的连线)或听眉线(即眉毛上缘中点与外耳道的连线)。两侧应对称，从基线向上扫描至颅顶。通常采用层厚10MM连续扫描，特殊部位病变的检查采用5MM以下薄层扫描。