Detection and follow-up of important extra-arterial lesions with helical CT angiography.
Clin Radiol
; 54(5): 294-300, 1999 May.
Article
em En
| MEDLINE
| ID: mdl-10362234
ABSTRACT
AIM:
To determine the prevalence and significance of extra-arterial findings detected prospectively on helical computed tomographic angiography (CTA). SUBJECTS ANDMETHODS:
The official reports of 802 consecutive CTAs performed over a 4.5-year period on 624 patients and the reports of all radiographic follow-up studies were reviewed for identification of important extra-arterial findings. Medical records and imaging studies of all patients with previously unknown extra-arterial findings on CTA were reviewed to assess follow-up. In cases where follow-up was not indicated in the medical record, referring physicians were contacted directly.RESULTS:
Important, previously unknown, extra-arterial findings were detected on 35 CTAs (4.4% of all CTAs, 5.6% of all patients), with 33 of 35 detected prospectively. Six lesions were consistent with and/or proven to be malignant. Important non-tumoural lesions were discovered on nine CTAs. Of 13 lesions with imaging features that were suspicious for malignancy. Five of these lesions proved to be benign, but radiographic and/or clinical follow-up was not obtained or could not be documented in eight patients.CONCLUSION:
With the increasing use of CTA as a replacement for conventional angiography, careful attention should be paid to the visualized extra-arterial structures. Extra-vascular findings that are believed to be significant, may not be adequately followed-up by referring vascular specialists.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Angiografia
/
Tomografia Computadorizada por Raios X
/
Neoplasias
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
1999
Tipo de documento:
Article