MRI spot sign in acute intracerebral hemorrhage: an independent biomarker of hematoma expansion and poor functional outcome.
Cerebral hemorrhage
Magnetic resonance imaging
Prognosis
Stroke
Journal
Journal of neurology
ISSN: 1432-1459
Titre abrégé: J Neurol
Pays: Germany
ID NLM: 0423161
Informations de publication
Date de publication:
Mar 2023
Mar 2023
Historique:
received:
25
10
2022
accepted:
18
11
2022
revised:
17
11
2022
pubmed:
27
11
2022
medline:
3
3
2023
entrez:
26
11
2022
Statut:
ppublish
Résumé
In acute intracerebral hemorrhage (ICH), the prognostic value of the MRI spot sign on hematoma expansion (HE) and poor functional outcome is poorly known. We retrospectively included patients admitted over a 4-year period for an acute ICH in a single institution using MRI as the first-line imaging tool. The presence and number of MRI spot signs on contrast-enhanced T1-weighted imaging was evaluated by one neuroradiologist, blinded from outcomes. The primary outcome was HE, defined as > 6 mL or > 33% ICH volume growth from initial MRI to 24-48 h follow-up imaging; the secondary outcome was poor 3-month modified Rankin score (4-6). Overall, 147 patients were included, and 62% had a spot sign. Among the 130 patients with follow-up imaging, 24% experienced HE. HE occurred in 6%, 21% and 43% patients with 0, 1 and ≥ 2 spots, respectively (P < 0.001). The MRI spot sign was independently associated with HE (adjusted OR 6.15 [95% CI 1.60-23.65]; P = 0.008), with a dose-dependent effect. The negative and positive predictive values of the spot sign for HE were 0.94 and 0.35, respectively. Poor functional outcome occurred in 27%, 32% and 71% patients with 0, 1 and ≥ 2 spots, respectively (P < 0.001). In multivariable analysis, the presence of ≥ 2 spots was independently associated with poor functional outcome (adjusted OR 3.67 [95% CI 1.21-11.10]; P = 0.024). The MRI spot sign is an independent biomarker of HE, and the presence of ≥ 2 spots is independently associated with poor 3-month outcome. The lack of spot sign is highly predictive of a favorable evolution.
Sections du résumé
BACKGROUND
BACKGROUND
In acute intracerebral hemorrhage (ICH), the prognostic value of the MRI spot sign on hematoma expansion (HE) and poor functional outcome is poorly known.
METHODS
METHODS
We retrospectively included patients admitted over a 4-year period for an acute ICH in a single institution using MRI as the first-line imaging tool. The presence and number of MRI spot signs on contrast-enhanced T1-weighted imaging was evaluated by one neuroradiologist, blinded from outcomes. The primary outcome was HE, defined as > 6 mL or > 33% ICH volume growth from initial MRI to 24-48 h follow-up imaging; the secondary outcome was poor 3-month modified Rankin score (4-6).
RESULTS
RESULTS
Overall, 147 patients were included, and 62% had a spot sign. Among the 130 patients with follow-up imaging, 24% experienced HE. HE occurred in 6%, 21% and 43% patients with 0, 1 and ≥ 2 spots, respectively (P < 0.001). The MRI spot sign was independently associated with HE (adjusted OR 6.15 [95% CI 1.60-23.65]; P = 0.008), with a dose-dependent effect. The negative and positive predictive values of the spot sign for HE were 0.94 and 0.35, respectively. Poor functional outcome occurred in 27%, 32% and 71% patients with 0, 1 and ≥ 2 spots, respectively (P < 0.001). In multivariable analysis, the presence of ≥ 2 spots was independently associated with poor functional outcome (adjusted OR 3.67 [95% CI 1.21-11.10]; P = 0.024).
CONCLUSION
CONCLUSIONS
The MRI spot sign is an independent biomarker of HE, and the presence of ≥ 2 spots is independently associated with poor 3-month outcome. The lack of spot sign is highly predictive of a favorable evolution.
Identifiants
pubmed: 36434128
doi: 10.1007/s00415-022-11498-w
pii: 10.1007/s00415-022-11498-w
doi:
Substances chimiques
Biomarkers
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1531-1542Informations de copyright
© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.
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