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Time-resolved magnetic resonance angiography for assessment of recanalization after coil embolization of visceral artery aneurysms

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Time-resolved magnetic resonance angiography for assessment of recanalization after coil embolization of visceral artery aneurysms

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dc.contributor.author Kurosaka, Kenichiro pl
dc.contributor.author Kawai, Tatsuya pl
dc.contributor.author Shimohira, Masashi pl
dc.contributor.author Hashizume, Takuya pl
dc.contributor.author Ohta, Kengo pl
dc.contributor.author Suzuki, Yosuke pl
dc.contributor.author Shibamoto, Yuta pl
dc.date.accessioned 2017-09-04T15:40:40Z
dc.date.available 2017-09-04T15:40:40Z
dc.date.issued 2013 pl
dc.identifier.issn 1733-134X pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/43792
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 3.0 Polska *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/pl/legalcode *
dc.title Time-resolved magnetic resonance angiography for assessment of recanalization after coil embolization of visceral artery aneurysms pl
dc.type JournalArticle pl
dc.description.physical 64-68 pl
dc.description.additional Bibliogr. s. 68 pl
dc.abstract.en Background: Follow-up imaging after coil embolization of visceral artery aneurysms is important for detecting recanalization. However, CT examination is susceptible to coil artifacts, which sometimes makes it difficult to assess recanalization. We report 2 cases where recanalization was successfully visualized using time-resolved magnetic resonance angiography after coil embolization of visceral artery aneurysms (one case of right internal iliac artery aneurysm and one case of splenic artery aneurysm). Repeat coil embolization was successfully performed. Case Report: Case 1. An 80-year-old male patient with right internal iliac artery (IIA) aneurysm underwent coil embolization. Aneurysm was located at the bifurcation of the right IIA and therefore, after making a femorofemoral bypass, the distal part of the right IIA, aneurysm and the common iliac artery were embolized with a coil. One year later, the size of the aneurysm seemed to have increased on CT. However, the details were not determined because of metal artifacts. Thus, timeresolved MRA was performed and showed minute vascular flow inside the aneurysm. Angiography was subsequently performed and blood flow inside the aneurysm was visualized similar to the findings in time-resolved MRA. Coil embolization was performed once more and vascular flow inside the aneurysm disappeared. Case 2. A 36-year-old male patient with a splenic artery aneurysm underwent coil packing with preservation of splenic artery patency. Four years later, coil compaction was suspected in a CT scan, but CT could not evaluate recanalization because of severe metal artifacts. Angiography was subsequently performed, showing recanalization of the aneurysm as did the time-resolved MRA. Therefore, coil embolization of the aneurysm and splenic artery was performed again. Conclusions: Follow-up imaging after coil embolization of visceral artery aneurysms is important for detecting recanalization. However, it is sometimes difficult to assess recanalization with CT because of artifacts caused by metal. In our cases, recanalization of aneurysms was clearly shown by timeresolved MRA and re-embolization was successfully performed. In conclusion, time-resolved MRA appears to be useful in assessment of recanalization of visceral artery aneurysms after coil embolization. pl
dc.subject.en visceral artery aneurysms pl
dc.subject.en MR angiography pl
dc.subject.en coil embolization pl
dc.subject.en recanalization pl
dc.description.volume 78 pl
dc.description.number 1 pl
dc.identifier.doi 10.12659/PJR.883769 pl
dc.identifier.eissn 1899-0967 pl
dc.title.journal Polish Journal of Radiology pl
dc.language.container eng pl
dc.subtype Article pl
dc.rights.original CC-BY-NC-ND; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl


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Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 3.0 Polska Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 3.0 Polska