3D Rotational Angiography After Non-Traumatic SAH.
Rofo
; 186(7): 675-9, 2014 Jul.
Article
em En
| MEDLINE
| ID: mdl-24477505
ABSTRACT
PURPOSE:
In about 15â% of patients with SAH no causative vascular lesions can be found in acute imaging with CTA and DSA. Usually, repeat DSA is mandatory and bears the usual risk of invasive angiography. The present study attempts to assess the diagnostic impact of 3âD rotational angiography in order to avoid repeat DSA. MATERIALS ANDMETHODS:
From January 2004 to December 2012, 649 patients with an acute non-traumatic SAH were examined. 91 patients with negative initial imaging diagnostics concerning the bleeding source were included in this study. These patients underwent a second angiography scan 61 in 4-plane technique, and 30 with 2-plane technique and additional 3âD DSA. Two cohorts were compared patients with repeat angiography in conventional 4-plane technique from 2004 to July 2008 and 2-plane technique with additional 3âD rotational DSA from 2008 to 2012. Statistical significance was verified by means of Fisher's exact test.RESULTS:
In the second DSA scan, 4 aneurysms in 4 patients (4/91; 4.4â%) were found and treated subsequently. Within the first 4.5 years of this study, 401 patients with SAH were treated and 61 of them underwent repeat angiography (15.2â%) compared to 30 of 248 patients (12.1â%) in the last 4.5 years of this study. In the first group we found 3 aneurysms during repeat angiography, and in the second group we found 1. No significance was reached (pâ=â0.29) but there was a tendency towards higher diagnostic security using 3D-DSA.CONCLUSION:
Using 3âD rotational DSA in initial imaging workup might help to reduce false-negative results concerning the bleeding source of acute SAH. At least because of this fact, 3âD rotational DSA should be part of the diagnostic workup after acute SAH.
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Base de dados:
MEDLINE
Assunto principal:
Hemorragia Subaracnóidea
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Angiografia Cerebral
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Tomografia Computadorizada por Raios X
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Angiografia Digital
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Imageamento Tridimensional
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article