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7T magnetic resonance angiographic imaging of basilar artery perforator aneurysms – initial experience of a non-invasive alternative to DSA

Ramgren, Birgitta LU ; Wassélius, Johan LU ; Hansson, Boel LU and Markenroth Bloch, Karin LU orcid (2023) In Interventional Neuroradiology
Abstract

Background: Perforator aneurysms of the basilar artery (PABA) are rare causes of subarachnoid haemorrhage (SAH) and challenging to diagnose. We present two cases of SAH caused by PABA diagnosed by cone beam computed tomography angiography (CBCTA) and a novel non-invasive method – 7T magnetic resonance imaging (7T MRI). Methods: Two patients with SAH, diagnosed with PABA, were imaged on day 9 and 13 after onset, respectively, with CBCTA and 7T MR angiography (MRA) performed on the day after and at follow-up at 3 months. Results: All four 7T MRI examinations in the two patients were technically successful with fully diagnostic images. No endovascular treatment was performed and control with 7T MRA at 3 months showed no remaining... (More)

Background: Perforator aneurysms of the basilar artery (PABA) are rare causes of subarachnoid haemorrhage (SAH) and challenging to diagnose. We present two cases of SAH caused by PABA diagnosed by cone beam computed tomography angiography (CBCTA) and a novel non-invasive method – 7T magnetic resonance imaging (7T MRI). Methods: Two patients with SAH, diagnosed with PABA, were imaged on day 9 and 13 after onset, respectively, with CBCTA and 7T MR angiography (MRA) performed on the day after and at follow-up at 3 months. Results: All four 7T MRI examinations in the two patients were technically successful with fully diagnostic images. No endovascular treatment was performed and control with 7T MRA at 3 months showed no remaining aneurysms. Conclusion: PABA can be imaged with 7T MRI – a novel non-invasive method, allowing non-invasive follow-up to monitor this rare cause of SAH.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
in press
subject
keywords
7T MRI, basilar artery, non-invasive neurovascular imaging, Perforator aneurysm, subarachnoid haemorrhage
in
Interventional Neuroradiology
publisher
Centauro srl
external identifiers
  • pmid:37312529
  • scopus:85162689182
ISSN
1591-0199
DOI
10.1177/15910199231183130
language
English
LU publication?
yes
id
51e62fe7-7ca9-4515-8d93-e35e6a8e584a
date added to LUP
2023-10-09 13:24:03
date last changed
2024-04-19 02:08:49
@article{51e62fe7-7ca9-4515-8d93-e35e6a8e584a,
  abstract     = {{<p>Background: Perforator aneurysms of the basilar artery (PABA) are rare causes of subarachnoid haemorrhage (SAH) and challenging to diagnose. We present two cases of SAH caused by PABA diagnosed by cone beam computed tomography angiography (CBCTA) and a novel non-invasive method – 7T magnetic resonance imaging (7T MRI). Methods: Two patients with SAH, diagnosed with PABA, were imaged on day 9 and 13 after onset, respectively, with CBCTA and 7T MR angiography (MRA) performed on the day after and at follow-up at 3 months. Results: All four 7T MRI examinations in the two patients were technically successful with fully diagnostic images. No endovascular treatment was performed and control with 7T MRA at 3 months showed no remaining aneurysms. Conclusion: PABA can be imaged with 7T MRI – a novel non-invasive method, allowing non-invasive follow-up to monitor this rare cause of SAH.</p>}},
  author       = {{Ramgren, Birgitta and Wassélius, Johan and Hansson, Boel and Markenroth Bloch, Karin}},
  issn         = {{1591-0199}},
  keywords     = {{7T MRI; basilar artery; non-invasive neurovascular imaging; Perforator aneurysm; subarachnoid haemorrhage}},
  language     = {{eng}},
  publisher    = {{Centauro srl}},
  series       = {{Interventional Neuroradiology}},
  title        = {{7T magnetic resonance angiographic imaging of basilar artery perforator aneurysms – initial experience of a non-invasive alternative to DSA}},
  url          = {{http://dx.doi.org/10.1177/15910199231183130}},
  doi          = {{10.1177/15910199231183130}},
  year         = {{2023}},
}