RT Journal Article
SR Electronic
T1 Combination of high-resolution cone beam computed tomography and metal artefact reduction software: a new image fusion technique for evaluating intracranial stent apposition after aneurysm treatment
JF BMJ Case Reports
JO BMJ Case Reports
FD BMJ Publishing Group Ltd
SP e230687
DO 10.1136/bcr-2019-230687
VO 12
IS 9
A1 Ichiro Yuki
A1 Toshihiro Ishibashi
A1 Chihebeddine Dahmani
A1 Naoki Kato
A1 Ayako Ikemura
A1 Yukiko Abe
A1 Katharina Otani
A1 Tomonobu Kodama
A1 Issei Kan
A1 Kengo Nishimura
A1 Yuichi Murayama
YR 2019
UL http://casereports.bmj.com/content/12/9/e230687.abstract
AB We introduce a new imaging technique to improve visualisation of stent apposition after endovascular treatment of brain aneurysms employing high-resolution cone beam CT and three-dimensional digital subtraction angiography. After performing a stent-assisted coil embolisation of brain aneurysm, the image datasets were processed with a metal artefact reduction software followed by the automated image fusion programmes. Two patients who underwent aneurysm coiling using a Neuroform stent were evaluated. The reconstructed 3D images showed a detailed structure of the stent struts and identified malappositions of the deployed stents. Case 1 showed good apposition on the outer curvature side of the carotid siphon, while the inner curvature side showed prominent malapposition. Case 2, with multiple aneurysms, showed good apposition on both outer and inner curvature sides, although inward prolapse of the struts was observed. This new imaging technique may help evaluate stent apposition after the endovascular aneurysm treatment.