Delineation of the central retinal artery using computed tomography: a pilot study.
Anatomy
Central retinal artery
Computed tomography scan
Ophthalmic artery
Orbit
Scan timing
Journal
Surgical and radiologic anatomy : SRA
ISSN: 1279-8517
Titre abrégé: Surg Radiol Anat
Pays: Germany
ID NLM: 8608029
Informations de publication
Date de publication:
Dec 2023
Dec 2023
Historique:
received:
21
07
2023
accepted:
05
10
2023
medline:
6
11
2023
pubmed:
18
10
2023
entrez:
17
10
2023
Statut:
ppublish
Résumé
The prospective study aimed to examine the central retinal artery (CRA) using computed tomography (CT). Seventy adult outpatients comprising 32 men and 38 women, at a mean age of 60.6 ± 13.3 years, were enrolled in the study. The patients underwent contrast-enhanced CT. The scan timing was set to start 5.0 s after the circle of Willis began to be delineated. The ophthalmic arteries (OphAs) were comfortably delineated in all. In 97% of the patients, the CRA was delineated from the original site on the OphA to a more distal segment coursing on the optic sheath. Unilateral and bilateral CRA delineations were observed in 44% and 53% of cases, respectively. The delineated CRAs demonstrated highly variable morphologies in terms of the course and length on the optic sheath. In addition, the distance between the original site of the CRA and the posterior limit of the bulb was measured. The mean distance was 18.6 ± 5.0 mm on the right and 17.8 ± 4.3 mm on the left, respectively. No significant right-to-left differences in the measurements (p > 0.05) were observed. If optimal scan timing is adopted, the CRA segments coursing on the optic sheath can be delineated using contrast-enhanced CT. CT may be a useful diagnostic modality for the CRAs and associated pathological conditions.
Identifiants
pubmed: 37848755
doi: 10.1007/s00276-023-03250-4
pii: 10.1007/s00276-023-03250-4
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1551-1555Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.
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