Miura K, Miura G, Honjou K, Nishikawa H, Sasai K, Tanaka R, Nakada T, Nakanishi T
Department of Radiology, Yamaguchi University School of Medicine.
Nihon Igaku Hoshasen Gakkai Zasshi. 1990 Sep 25;50(9):1055-62.
Thin slice table incremental CE-CT was performed on 18 patients considered to have pancreatic carcinoma, 13 patients with chronic pancreatitis, and 19 patients with a normal pancreas. Each patient underwent precontrast CT scanning and delayed scanning. Computed tomography was performed with a high-speed scanner, a TCT 900s. First, precontrast CT scanning was initiated at the level of the top of the right diaphragm, and the scan sequence was performed to include the liver and pancreas at contiguous 10 mm intervals. Second, a bolus of 50-60 mL of 300 mgI/mL iopamidol was delivered intravenously by hand injection via a peripheral arm vein, and subsequent injections were administered during table incrementation with 2-second interscan delay, and the scan sequence was obtained at contiguous 5 mm intervals with a scan speed of 1-second. Delayed scanning was performed 1-2 minutes later after 12 images had been obtained by thin slice table incremental CE-CT scanning. The average CT numbers were calculated for each lesion by precontrast CT scanning, thin slice table incremental CE-CT scanning, and delayed scanning. For the patients with pancreatic carcinoma, the average CT numbers were 41.6HU +/- 6.4HU, 69.6HU +/- 10.4HU, and 86.2HU +/- 14.7HU by precontrast CT scanning, thin slice table incremental CE-CT scanning, and delayed scanning, respectively. While for the patients with chronic pancreatitis, the average CT numbers were 50.0HU +/- 5.0HU, 94.3HU +/- 13.3HU, and 82.5HU +/- 11.6HU, respectively, and for those with a normal pancreas, the average CT numbers were 51.3HU +/- 5.7HU, 93.5HU +/- 7.6HU, and 82.0HU +/- 11.6HU, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
对18例疑似胰腺癌患者、13例慢性胰腺炎患者和19例胰腺正常的患者进行了薄层床进床式增强CT检查。每位患者均接受了平扫CT扫描和延迟扫描。使用TCT 900s高速扫描仪进行计算机断层扫描。首先，在右膈顶部水平开始平扫CT扫描，扫描序列以10mm的连续间隔进行，包括肝脏和胰腺。其次，通过外周手臂静脉手动注射50 - 60mL 300mgI/mL的碘帕醇，随后在床进床过程中进行注射，扫描间隔延迟2秒，扫描序列以5mm的连续间隔、1秒的扫描速度获得。在薄层床进床式增强CT扫描获得12幅图像后1 - 2分钟进行延迟扫描。通过平扫CT扫描、薄层床进床式增强CT扫描和延迟扫描计算每个病变的平均CT值。对于胰腺癌患者，平扫CT扫描、薄层床进床式增强CT扫描和延迟扫描的平均CT值分别为41.6HU±6.4HU、69.6HU±10.4HU和86.2HU±14.7HU。而对于慢性胰腺炎患者，平均CT值分别为50.0HU±5.0HU、94.3HU±13.3HU和82.5HU±11.6HU，对于胰腺正常的患者，平均CT值分别为51.3HU±5.7HU、93.5HU±7.6HU和82.0HU±11.6HU。（摘要截断于250字）
