CEUS versus CT Angiography in the follow-up of abdominal aortic endoprostheses: diagnostic accuracy and activity-based cost analysis.
Radiol Med
; 123(12): 904-909, 2018 Dec.
Article
em En
| MEDLINE
| ID: mdl-30084107
ABSTRACT
PURPOSE:
To evaluate diagnostic accuracy and to perform an activity-based cost analysis of contrast-enhanced ultrasonography (CEUS) compared to computed tomography (CT) during annual surveillance after abdominal aortic aneurysm repair with endovascular procedure (EVAR). MATERIALS ANDMETHODS:
This retrospective study included 137 patients in post-EVAR follow-up over a 6-year period (average post-operatory follow-up without aneurysm sac volumetric reduction). Sensitivity, specificity, positive predictive values, negative predictive values and accuracy were considered for CEUS using CT angiography (CTA) as reference standard. An activity-based cost analysis was performed to evaluate potential savings due to the introduction of CEUS as an alternative to CT, after the first year of postoperative negative controls.RESULTS:
CEUS reported accuracy, sensitivity, specificity, positive predictive values, negative predictive values of 97.4, 96, 100, 100 and 93.1% in the detection and characterization of endoleaks. CEUS cost was 84.7, and CTA cost was 157.77, with a differential cost of 73.07; using CEUS as an alternative to CT allowed a potential saving of 50.052,95 during follow-up.CONCLUSIONS:
CEUS is an accurate and cheap imaging method in post-EVAR follow-up patients, and it could be considered as a valid alternative to CTA, after the first year of negative controls, reducing the number of unnecessary CT examinations.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Ultrassonografia
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Aneurisma da Aorta Abdominal
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Procedimentos Endovasculares
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Angiografia por Tomografia Computadorizada
Tipo de estudo:
Diagnostic_studies
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Health_economic_evaluation
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Radiol Med
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Itália