Hidajat N, Schedel H, Vogl T, Schröder R J, Keck H, Felix R
Strahlenklinik und Poliklinik, Universitätsklinikum Rudolf Virchow, Freie Universität, Berlin.
Rofo. 1995 Jul;163(1):16-23. doi: 10.1055/s-2007-1015938.
Spiral CT is compared with the dynamic CT and the conventional CT with regard to the enhancement of the pancreas and peripancreatic vessels and the visualisation of anatomic details.
In 15 patients spiral CT of the pancreatic region was performed in the arterial phase followed by spiral CT of the upper abdomen in the arterial-venous phase. In 30 patients dynamic CT (n = 15) and spiral CT (n = 15) of the pancreatic region was performed in the arterial phase followed by conventional CT of the upper abdomen.
Compared with dynamic CT, spiral CT of the pancreatic region in the arterial phase (flow 4 ml/s, delay 15-18 s) leads to a stronger contrast of the peripancreatic vessels (p < 0.001) and the pancreas (108 vs. 86 HU) (p < 0.05). In the following spiral CT of the upper abdomen (flow 1 ml/s, delay 70 s), a high enhancement of both arteries and veins could be achieved. Intrapancreatic structures and peripancreatic vessels were better seen in the spiral CT than in the conventional CT (p < 0.05) and p < 0.005, respectively).
The combination of spiral CT of the pancreatic region in the arterial perfusion phase and spiral CT of the upper abdomen in the arterial-venous phase enables an optimal enhancement of the pancreas and the abdominal vessels and a reliable visualisation of anatomic details.
比较螺旋CT与动态CT及传统CT在胰腺及胰腺周围血管强化以及解剖细节显示方面的差异。
15例患者在动脉期行胰腺区域螺旋CT扫描，随后在动静脉期行上腹部螺旋CT扫描。30例患者在动脉期行胰腺区域动态CT（n = 15）及螺旋CT（n = 15）扫描，随后行上腹部传统CT扫描。
与动态CT相比，胰腺区域动脉期螺旋CT（流速4 ml/s，延迟15 - 18 s）使胰腺周围血管（p < 0.001）及胰腺（108 HU对86 HU）（p < 0.05）的强化更明显。在随后的上腹部螺旋CT扫描（流速1 ml/s，延迟70 s）中，动脉和静脉均可实现高度强化。胰腺内结构及胰腺周围血管在螺旋CT上比在传统CT上显示得更好（分别为p < 0.05和p < 0.005）。
动脉灌注期胰腺区域螺旋CT与动静脉期上腹部螺旋CT相结合，能够使胰腺及腹部血管实现最佳强化，并可靠地显示解剖细节。
