OBJECTIVE: The aim of this study was to determine the feasibility and usefulness of contrast-enhanced magnetic resonance angiography (CE-MRA) and 3-dimensional (3D) time-of-flight (TOF) MRA for follow-up of intracranial aneurysms treated using the Enterprise stent. METHODS: Five aneurysm cases using the Enterprise stent were prospectively analyzed and were followed up with CE-MRA, 3D TOF MRA, and digital subtraction angiography (DSA). Depictions of parent artery lumen and the aneurysm neck with 3D TOF MRA and CE-MRA were compared with those of DSA. RESULTS: In all cases, on 3D TOF MRA, it was difficult to evaluate the parent artery lumen and aneurysm neck owing to the significant artifacts from the stent. Contrast-enhanced MRA sufficiently demonstrated parent artery lumen and aneurysm neck distinctly and as clear as DSA did in all cases. CONCLUSIONS: For follow-up after coiling with an Enterprise stent, CE-MRA may be necessary to avoid susceptibility artifacts caused by the stent.
OBJECTIVE: The aim of this study was to determine the feasibility and usefulness of contrast-enhanced magnetic resonance angiography (CE-MRA) and 3-dimensional (3D) time-of-flight (TOF) MRA for follow-up of intracranial aneurysms treated using the Enterprise stent. METHODS: Five aneurysm cases using the Enterprise stent were prospectively analyzed and were followed up with CE-MRA, 3D TOF MRA, and digital subtraction angiography (DSA). Depictions of parent artery lumen and the aneurysm neck with 3D TOF MRA and CE-MRA were compared with those of DSA. RESULTS: In all cases, on 3D TOF MRA, it was difficult to evaluate the parent artery lumen and aneurysm neck owing to the significant artifacts from the stent. Contrast-enhanced MRA sufficiently demonstrated parent artery lumen and aneurysm neck distinctly and as clear as DSA did in all cases. CONCLUSIONS: For follow-up after coiling with an Enterprise stent, CE-MRA may be necessary to avoid susceptibility artifacts caused by the stent.
Authors: N Takano; M Suzuki; R Irie; M Yamamoto; N Hamasaki; K Kamagata; K K Kumamaru; M Hori; H Oishi; S Aoki Journal: AJNR Am J Neuroradiol Date: 2016-12-22 Impact factor: 3.825
Authors: N Takano; M Suzuki; R Irie; M Yamamoto; K Teranishi; K Yatomi; N Hamasaki; K K Kumamaru; M Hori; H Oishi; S Aoki Journal: AJNR Am J Neuroradiol Date: 2017-05-18 Impact factor: 3.825
Authors: R Irie; M Suzuki; M Yamamoto; N Takano; Y Suga; M Hori; K Kamagata; M Takayama; M Yoshida; S Sato; N Hamasaki; H Oishi; S Aoki Journal: AJNR Am J Neuroradiol Date: 2014-12-18 Impact factor: 3.825