{
  "abstract": "Introduction There is no consensus regarding the optimal imaging modality for assessing aneurysms treated with flow-diverter (FD).Aim of study The aim of study is to evaluate the image quality of intravenous vasoCT (IV-vasoCT) in the follow-up of aneurysms treated with FD and to explore its potential for depicting braid stent deformation and vessel lumen modifications.Method We retrospectively enrolled patients who underwent FD placement for the treatment of aneurysms, with post-treatment IV-vasoCT at 1–3 months and DSA at least 6 months. IV-vasoCT image quality assessment evaluated: vessel opacification, vessel border, stent radiopacity, stent/vessel contrast, movement artefacts. Braid stent and parent vessel findings were compared between IV-vasoCT and DSA in terms of: neointimal lining, stent foreshortening, fish-mouthing, bumping, braid collapse.Abstract A344 Figure 1Results 26 aneurysms were evaluated in 24 patients (F/M: 15/9), with a median age of 54.5 years (IQR: 47.0–59.0 years). The in-consensus image quality reading evaluated: vessel opacification as optimal in 19 cases (73.1%), vessel borders as well-defined in 17 (65.4%); stent radiopacity as well-defined in 25 (96.2%), stent/vessel contrast as optimal in 20 (76.9%). Compared to DSA, IV-vasoCT diagnosed 2/3 (66%) cases of neointimal lining, 2/2 (100%) of fish-mouth, 1/2 (50%) of foreshortening, 3/6 (50%) of bumping, 2/2 (100%) of braid collapse.Abstract A344 Figure 2Conclusion IV-vasoCT is feasible for the non-invasive follow-up of aneurysm treated with FD. It may depict modifications in braid stent and vessel neointimal lining, but the presence of coils may reduce its image quality because of artefacts.Conflict of Interest No",
  "authors": [
    {
      "affiliations": [
        "Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy"
      ],
      "name": "Giulia Platania"
    },
    {
      "affiliations": [
        "Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy"
      ],
      "name": "Beatrice Modello"
    },
    {
      "affiliations": [
        "Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy"
      ],
      "name": "Luca Caschera"
    },
    {
      "affiliations": [
        "University of Milan, Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Milan, Italy"
      ],
      "name": "Giorgio Conte"
    }
  ],
  "title": "A344 Intravenous vasoCT in the assessment of intracranial aneurysms treated with flow-diverter stents: a new gold standard for the non-invasive follow-up?",
  "uid": "3ec35429-0fec-5295-93cd-a1c7e0fb3488"
}