Use of the delayed mask for improved demonstration of aneurysms on intraarterial DSA.
AJNR Am J Neuroradiol
; 13(6): 1589-93, 1992.
Article
em En
| MEDLINE
| ID: mdl-1442435
ABSTRACT
PURPOSE:
We retrospectively explored the use of the delayed mask technique for intraarterial digital subtraction angiography (IADSA) to demonstrate the anatomy of aneurysm necks.METHODS:
The delayed mask technique was utilized in 22 patients who had craniotomies for aneurysms demonstrated at angiography. The operative notes were compared to the angiographic findings of both the traditionally masked IADSA and the delayed mask IADSA. In addition, an in vitro model was constructed to examine the relationship between the size of the aneurysm neck and the ability to indirectly define its anatomy by demonstrating the flow jet.RESULTS:
In 12 of 22 cases, the delayed mask technique demonstrated a systolic jet that was not demonstrated by traditional subtraction techniques. In nine of 12 cases, the delayed mask technique gave more specific information regarding the size, location, and orientation of the aneurysm neck.CONCLUSION:
The delayed mask technique can add important information regarding the anatomy of aneurysm without adding time or risk to the procedure.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Angiografia Digital
/
Aneurisma Intracraniano
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
AJNR Am J Neuroradiol
Ano de publicação:
1992
Tipo de documento:
Article