Investigation of an appropriate contrast-enhanced CT protocol for young patients following the Fontan operation.
Investigation of an appropriate contrast-enhanced CT protocol for young patients following the Fontan operation.
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研究适合 Fontan 手术后年轻患者的对比增强 CT 方案。
DOI：
10.1007/s11604-018-0718-3
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发表时间：
2018
影响因子：
2.1
通讯作者：
Motoo Nakagawa
中科院分区：
文献类型：
--
作者：
Tsuneo Yamashiro;Hiroshi Moriya;Maho Tsubakimoto;Sadayuki Murayama;山城恒雄;Motoo Nakagawa
目的先天性心脏病（CHD）患儿Fontan手术后可能出现导管闭塞等并发症，需要进行CT增强随访。本研究的目的是制定一个适当的对比增强CT协议，为儿童先心病后Fontan operation.Materials和methodsBetween 2012年7月和2017年7月，29 CT检查26例患者年龄2-11岁（中位数5年），先心病后Fontan operation进行了使用双源CT。通过手背静脉注射非离子化造影剂。注射开始后60或70秒开始扫描。延迟相随机选择60 s 14例，70 s 15例。结果60 s和70 s时的CT值分别为185 ± 46和185 ± 31 HU（P= 0.97）。
PurposeChildren with congenital heart diseases (CHDs) may need to be followed up with contrast-enhanced CT following the Fontan operation because complications such as the occlusion of conduits may occur. The purpose of the present study was to develop an adequate contrast-enhanced CT protocol for children with CHD following the Fontan operation.Materials and methodsBetween July 2012 and July 2017, 29 CT examinations for 26 patients aged 2–11 years (median 5 years) with CHD following the Fontan operation were performed using dual-source CT. A non-ionized contrast medium was injected through the dorsum manus vein. Scanning began 60 or 70 s after the start of the injection. The delayed phase was randomly selected to be 60 s in 14 cases and 70 s in 15 cases. We evaluated the enhancement of conduits following the Fontan operation at delayed phases.ResultsThe CT numbers of conduits at 60 and 70 s were 185 ± 46 and 185 ± 31 HU, respectively (P= 0.97).ConclusionIn contrast-enhanced CT for children after the Fontan operation, both of the delayed phases (60 and 70 s) appeared to be adequate for evaluating intraconduit patency.