Urikura Atsushi, Yoshida Tsukasa, Endo Masahiro, Asakura Koiku, Sato Rui, Saiga Atsushi, Moriguchi Michihisa, Nakashima Kazuaki, Aramaki Takeshi
Division of Diagnostic Radiology, Shizuoka Cancer Center, Shizuoka, Japan.
Department of Radiological Technology, Radiological Diagnosis, National Cancer Center Hospital, Tokyo, Japan.
Acta Radiol Open. 2022 Oct 14;11(10):20584601221131476. doi: 10.1177/20584601221131476. eCollection 2022 Oct.
Acute pulmonary thromboembolism occurring during cancer treatment has been increasing with the number of cancer patients and chemotherapy cases. Computed tomographic pulmonary angiography (CTPA) for evaluating the pulmonary artery is generally performed using rapid injection of contrast medium. However, intravenous catheters for contrast medium injection might cause extravasation due to rapid injection. This case series describes three patients who underwent contrast-enhanced computed tomography combined with low-tube-voltage imaging and slow injection. Low-tube-voltage slow-injection CTPA can be an effective technique for obtaining high contrast enhancement while accommodating fragile veins and low injection rates.
随着癌症患者数量和化疗病例的增加,癌症治疗期间发生的急性肺血栓栓塞症也在增多。评估肺动脉的计算机断层扫描肺动脉造影(CTPA)通常采用快速注射造影剂的方式进行。然而,用于注射造影剂的静脉导管可能因快速注射而导致渗漏。本病例系列描述了三名接受了对比增强计算机断层扫描并结合低管电压成像和缓慢注射的患者。低管电压缓慢注射CTPA可能是一种在适应脆弱静脉和低注射速率的同时获得高对比增强效果的有效技术。