TY - JOUR
T1 - Investigation of an appropriate contrast-enhanced CT protocol for young patients following the Fontan operation
AU - Nakagawa, Motoo
AU - Ozawa, Yoshiyuki
AU - Nomura, Norikazu
AU - Inukai, Sachiko
AU - Shiba, Ayano
AU - Sakurai, Keita
AU - Shimohira, Masashi
AU - Shibamoto, Yuta
N1 - Publisher Copyright:
© 2018, Japan Radiological Society.
PY - 2018/3/1
Y1 - 2018/3/1
N2 - Purpose: Children 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 methods: Between 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. Results: The CT numbers of conduits at 60 and 70 s were 185 ± 46 and 185 ± 31 HU, respectively (P = 0.97). Conclusion: In 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.
AB - Purpose: Children 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 methods: Between 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. Results: The CT numbers of conduits at 60 and 70 s were 185 ± 46 and 185 ± 31 HU, respectively (P = 0.97). Conclusion: In 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.
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U2 - 10.1007/s11604-018-0718-3
DO - 10.1007/s11604-018-0718-3
M3 - Article
C2 - 29327115
AN - SCOPUS:85040349053
SN - 1867-1071
VL - 36
SP - 215
EP - 222
JO - Japanese journal of radiology
JF - Japanese journal of radiology
IS - 3
ER -