Multipath Curved Planar Reformations of Peripheral CT Angiography: Diagnostic Accuracy and Time Efficiency.
Cardiovasc Intervent Radiol
; 41(5): 718-725, 2018 May.
Article
en En
| MEDLINE
| ID: mdl-29218656
ABSTRACT
OBJECTIVES:
To compare diagnostic performance and time efficiency between 3D multipath curved planar reformations (mpCPRs) and axial images of CT angiography for the pre-interventional assessment of peripheral arterial disease (PAD), with digital subtraction angiography as the standard of reference.METHODS:
Forty patients (10 females, mean age 72 years), referred to CTA prior to endovascular treatment of PAD, were prospectively included and underwent peripheral CT angiography. A semiautomated toolbox was used to render mpCPRs. Twenty-one arterial segments were defined in each leg; for each segment, the presence of stenosis > 70% was assessed on mpCPRs and axial images by two readers, independently, with digital subtraction angiography as gold standard.RESULTS:
Both readers reached lower sensitivity (Reader 1 91 vs. 94%, p = 0.08; Reader 2 89 vs. 93%, p = 0.03) but significantly higher specificity (Reader 1 94 vs. 89%, p < 0.01; Reader 2 96 vs. 95%, p = 0.01) with mpCPRs than with axial images. Reader 1 achieved significantly higher accuracy with mpCPRs (93 vs. 91%, p = 0.02), and Reader 2 had similar overall accuracy in both evaluations (94 vs. 94%, p = 0.96). Both readers read mpCPRs significantly faster than axial images (Reader 1 5'45â³ based on mpCPRs vs. 7'40â³ based on axial images; Reader 2 4'41â³ based on mpCPRs vs. 6'57â³ based on axial images; p < 0.01).CONCLUSIONS:
mpCPRs are a promising 3D reformation technique that facilitates a fast assessment of PAD with high diagnostic accuracy.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Enfermedad Arterial Periférica
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Angiografía por Tomografía Computarizada
Tipo de estudio:
Diagnostic_studies
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Observational_studies
Límite:
Adult
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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:
Cardiovasc Intervent Radiol
Año:
2018
Tipo del documento:
Article
País de afiliación:
Austria