Article Figures & Data
Figures
- FIG 1.
Flow chart of patient selection.
- FIG 2.
Use of the Neuroform Atlas stent in SAC for the treatment of an unruptured anterior communicating artery aneurysm. A, 2D DSA of the right ICA shows the right A1 artery to be slender and the anterior communicating artery to be open. B, 2D DSA of the left ICA shows an aneurysm of the anterior communicating artery of 2.2 × 4.5 mm. The anterior communicating artery sends out a median callosal artery and the bilateral A2 arteries together to form a triploid anterior cerebral artery (aneurysm is shown by a white arrow). C and D, 3D DSA shows the position between the 3 A2 arteries and the aneurysms (blue dashed line denotes the stent-placement area, the parent artery diameter is 1.91 mm, and the diameter mismatch ratio is 1.09). E, SAC using a Neuroform Atlas stent (3.0 × 24 mm) was performed, and the occlusion attenuation of the aneurysm was Raymond-Roy class I (white arrows indicate the ends of the stent). F and G, HR-CBCT with diluted contrast media shows complete stent apposition and satisfactory protection of the coils at the aneurysm neck (the stent wire at the aneurysm neck is indicated by white arrows). H, DSA follow-up at 6 months shows the stent patency and well-healed aneurysm (Raymond-Roy class I).
- FIG 3.
Use of the LVIS Jr stent in SAC for the treatment of an unruptured A2-segment aneurysm. A and B, 2D DSA and 3D DSA of the right ICA show an A2-segment aneurysm of the right anterior cerebral artery, with an irregular shape and a size of 1.5 × 2.7 mm. The parent artery diameter is 1.79 mm, and the diameter mismatch ratio is 1.15 (aneurysm is shown by a white arrow). C, SAC using a LVIS Jr stent (2.5 × 13 mm) was performed, and the aneurysm occlusion attenuation was Raymond-Roy class I (white arrows indicate the ends of the stent). D, HR-CBCT with diluted contrast media shows that the stent was completely deployed and stent angles were 43.34° (the stent angles are indicated by a white arrow). E, HR-CBCT shows complete stent apposition at the aneurysm neck and the coils protected satisfactorily (stent wire at the aneurysm neck is indicated by white arrows). F. DSA follow-up at 6 months shows stent patency, and the aneurysm has healed well (Raymond–Roy class I).
Tables
- Table 1:
Included variables and assignment in multivariable regression analysis of incomplete stent appositiona
Variable Name Assign Aneurysm dome X1 Quantitative variable Aneurysm neck X2 Quantitative variable Parent artery diameter mismatch ratio X3 <1.25 = 0a, ≥1.25 = 1 Paren artery stenosis X4 No = 0a, yes = 1 Stent type X5 Atlas = 0a, LVIS Jr = 1 Stent angles X6 <75°= 0a, ≥75°= 1 ↵a A value of zero was assigned as the reference group.
- Table 2:
Multivariable logistic analysis of the factors associated with incomplete stent apposition of unruptured intracranial aneurysms treated with Neuroform Atlas or LVIS Jr stents
Variable OR 95% CI P Value Aneurysm dome 1.122 0.655∼1.922 .675 Aneurysm neck 1.683 0.936∼3.027 .082 Parent artery diameter mismatch ratio 8.043 1.137∼56.895 .037 Parent artery stenosis 1.794 0.310∼10.369 .514 Stent type 20.297 1.794∼229.636 .015 Stent angles 23.963 2.602∼220.693 .005
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