Keywords:
Outcomes, Aneurysms, Treatment effects, Embolisation, CT-Angiography, Interventional vascular
Authors:
A. Ozola, S. Ponomarjova; Riga/LV
DOI:
10.26044/ecr2019/C-3314
Methods and materials
This is a retrospective study of cerebral aneurysm endovascular embolization,
performed in Riga East Clinical University Hospital,
department of interventional radiology.
Data from the procedure day and follow–up data three to six months after embolizations was gathered for patietns with the following diagnoses – cerebral ruptured and unruptured aneursysm with subarachnoid hemorrhage or sequelae of subarachnoid haemorrhage.
Patients were divided into two groups – patients with ruptured aneurysms and with unruptured aneurysms.
Total coil volume for each aneursym was calculated considering the amount of coil used and it’s properties.
Aneurysm volume was calculated using computed tomography angiography or rotational 3D angiography data (Figure 1).
[1] Knowing aneurysm volume and coil volume,
coil packing density was determined.
Packing density was divided into three groups – high (>22%),
moderate (12 – 22%) and low (<12%) density.
All the volumetric measurements and calculations for each patient were compared with the degree of aneurysm occlusion.
The degree of occlusion after treatment was evaluated according to the Montreal scale - Montreal A (Figure 2),
Montreal B (Figure 3) and Montreal C (Figure 4).
[2] Microsoft Excel was used to gather the data,
and the statistical analysis was performed using IBM SPSS 22.