Article Figures & Data
Figures
- Fig 1.
Nonenhanced (left) and contrast-enhanced (right) MR vessel wall imaging shows circumferential strong contrast enhancement of a right middle cerebral artery aneurysm.
- Fig 2.
CD34 (A and C), hematoxylin-eosin (B and D), and MPO stain (E) at 10x magnification. A and B, Patient 3: aneurysm wall with evidence of neovascularization (arrows). C and D, Patient 8, vasa vasorum are present (arrowheads). There is no sign of neovascularization. E, The same patient as in C and D. MPO-positive aneurysm wall with accumulation of MPO-positive inflammatory cells in the tunica media (dotted arrows).
Tables
Patient characteristics
Patient Age (yr) Sex ASA Nicotine Estimated 5-Year Rupture Risk (PHASES) Size of Aneurysm (mm) Location of Aneurysm Multiple Aneurysms Enhancement in VWI MPO CD34 Vasa Vasorum 1 48 Male Yes No 3.2% 17 Right MCA No Strong + + No 2 64 Male Yes Yes 0.4% 6 Right MCA No Strong + + No 3 73 Female Yes Yes 5.3% 10 Right MCA No Strong + + No 4 48 Female No Yes 3.2% 10 Left MCA No Faint − − No 5 52 Female Yes Yes 0.7% 5 Right MCA Yes None − − No 6 53 Male Yes Yes 4.3% 14 Right MCA No Strong − − Yes 7 53 Female Yes Yes 0.7% 7 Left MCA No None − − No 8 46 Male No Yes 0.4% 6 Left MCA Yes Strong (partial) + − Yes 9 48 Male No Yes 0.4% 8 Left MCA No None − − No 10 57 Female No No 1.7% 9 Right MCA No None − − No 11 67 Female No Yes 0.7% 4 Right MCA No None − − No 12 36 Female No No 0.4% 4 Right MCA No None − − No 13 49 Female No Yes 1.3% 9 Right MCA No None − − No Note:—ASA indicates acetylsalicylic acid; +, positive; −, negative.
In this issue
Vessel Wall Enhancement in Unruptured Intracranial Aneurysms: An Indicator for Higher Risk of Rupture? High-Resolution MR Imaging and Correlated Histologic Findings
