Nakaya Yasuhiro, Kim Tonsok, Hori Masatoshi, Onishi Hiromitsu, Maeda Noboru, Higashihara Hiroki, Tomoda Kaname, Nakamura Hironobu
Department of Radiology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan.
J Comput Assist Tomogr. 2009 Jan-Feb;33(1):20-5. doi: 10.1097/RCT.0b013e3181674063.
To evaluate the efficacy of test injection technique using a monitoring scan at knee level for 64-slice multidetector row computed tomographic (MDCT) angiography of the abdominal and lower extremity arteries.
The test injection technique using low-dose serial CT scan at knee level was performed for 58 patients. Time elapsed from contrast material injection to peak enhancement for the popliteal arteries was applied to scan delay for CT angiography. 64-Slice MDCT angiography of the abdominal and lower extremity arteries obtained with a table speed of 137.5 mm/s was evaluated.
The time to peak enhancement was unavailable in 2 cases. CT angiographic images were of good quality in 54 cases, whereas prominent enhancement of abdominal veins was observed in 2 cases.
The test injection using a monitoring scan at knee level was found to be useful for 64-slice MDCT angiography of the abdominal and lower extremity arteries.
评估在膝关节水平进行监测扫描的试验性注射技术用于腹部和下肢动脉64层螺旋CT血管造影（MDCTA）的有效性。
对58例患者采用在膝关节水平进行低剂量序列CT扫描的试验性注射技术。将对比剂注射至腘动脉峰值强化的时间用于CT血管造影的扫描延迟。对采用137.5mm/s的床速获得的腹部和下肢动脉64层MDCTA进行评估。
2例无法获得峰值强化时间。54例CT血管造影图像质量良好，2例观察到腹部静脉显著强化。
发现在膝关节水平进行监测扫描的试验性注射技术对腹部和下肢动脉64层MDCTA有用。
