Article Figures & Data
Figures
- Fig 1.
Volume rendering of angiographic imaging data before and after rupture for all cases. Cases 1 and 2 show the largest absolute increase in aneurysm volume (+433 and +613 mm3, respectively); case 5 and 7, the largest relative increase in aneurysm volume (176% and 832%, respectively).
- Fig 2.
Case 7. Lateral view of 2D DSA (A) and 3DRA (B) before rupture shows a small aneurysm at the posterior communicating artery. Postrupture 2D DSA (C) and 3DRA (D) show a large increase of aneurysm volume and a new lobulation at the aneurysm dome.
- Fig 3.
Case 2. A, Axial 3D TOF MRA source image shows an anterior communicating artery aneurysm (arrow). B, Axial CTA source image after rupture shows an increase of aneurysm volume and flattening of the right aneurysm border and displacement of the aneurysm to the left side due to a large perianeurysmal hematoma (curved arrow).
Tables
No. Imaging Modality before Rupture Resolution (mm) Imaging Modality after Rupture Resolution (mm) 1 3D TOF MRA 0.49 × 0.49 × 1.2 3D RA 0.22 × 0.22 × 0.22 2 3D TOF MRA 0.31 × 0.31 × 1.0 CTA 0.31 × 0.31 × 0.45 3 CTA 0.33 × 0.33 × 1.0 CTA 0.35 × 0.35 × 0.33 4 3D PC MRA 0.78 × 0.78 × 1.0 3D RA 0.25 × 0.25 × 0.25 5 3D TOF MRA 0.45 × 0.45 × 1.0 3D RA 0.39 × 0.39 × 0.39 6 CTA 0.43 × 0.43 × 0.9 3D RA 0.22 × 0.22 × 0.22 7 3D TOF MRA 0.20 × 0.20 × 1.0 3D RA 0.17 × 0.17 × 0.17 8 3D TOF MRA 0.35 × 0.35 × 1.4 3D RA 0.17 × 0.17 × 0.17 9 CTA 0.33 × 0.33 × 1.3 3D RA 0.09 × 0.09 × 0.09 Note:—PC indicates phase-contrast; RA, rotational angiography.
Case Postrupture Imaginga 1 Large amount of subarachnoid hemorrhage No hematoma, no mass effect; no intra-aneurysmal thrombus; no lobulations 2 SAH, large perianeurysmal hematoma (28 × 22 × 35 mm) with mass effect on the aneurysm (slightly flattened contour right side); no intra-aneurysmal thrombus; no lobulations 3 SAH, no hematoma; no intra-aneurysmal thrombus; 1 new lobulation 4 SAH, large perianeurysmal hematoma in Sylvian fissure (46 × 33 × 38 mm) with mass effect, anterior displacement of vessels and aneurysm; no intra-aneurysmal thrombus; no lobulations 5 Large amount of subarachnoid hemorrhage Hematoma (10 × 20 × 10 mm), no mass effect on the aneurysm; no intra-aneurysmal thrombus; no lobulations 6 SAH, no hematoma; no intra-aneurysmal thrombus; no lobulation 7 SAH, no hematoma; no intra-aneurysmal thrombus; 1 new lobulation 8 Diffusely spread SAH, no hematoma; no intra-aneurysmal thrombus; the 2 initial lobulations were merged into a single large lobulation 9 SAH, no hematoma; no intra-aneurysmal thrombus; 1 new lobulation ↵a None of the prerupture imaging showed an intra-aneurysmal thrombus. Only case 8 showed lobulations on the prerupture imaging (2 lobulations).
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