Intra- and inter-operator reproducibility of automated cloud-based carotid lumen diameter ultrasound measurement.
Indian Heart J
; 70(5): 649-664, 2018.
Article
en En
| MEDLINE
| ID: mdl-30392503
ABSTRACT
BACKGROUND:
Common carotid artery lumen diameter (LD) ultrasound measurement systems are either manual or semi-automated and lack reproducibility and variability studies. This pilot study presents an automated and cloud-based LD measurements software system (AtheroCloud) and evaluates its (i) intra/inter-operator reproducibility and (ii) intra/inter-observer variability.METHODS:
100 patients (83M, mean age 68±11years), IRB approved, consisted of L/R CCA artery (200 ultrasound images), acquired using a 7.5-MHz linear transducer. The intra/inter-operator reproducibility was verified using three operator's readings. Near-wall and far carotid wall borders were manually traced by two observers for intra/inter-observer variability analysis.RESULTS:
The mean coefficient of correlation (CC) for intra- and inter-operator reproducibility between all the three automated reading pairs were 0.99 (P<0.0001) and 0.97 (P<0.0001), respectively. The mean CC for intra- and inter-observer variability between both the manual reading pairs were 0.98 (P<0.0001) and 0.98 (P<0.0001), respectively. The Figure-of-Merit between the mean of the three automated readings against the four manuals were 98.32%, 99.50%, 98.94% and 98.49%, respectively.CONCLUSIONS:
The AtheroCloud LD measurement system showed high intra/inter-operator reproducibility hence can be adapted for vascular screening mode or pharmaceutical clinical trial mode.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Estenosis Carotídea
/
Arteria Carótida Común
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Ultrasonografía Doppler
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Grosor Intima-Media Carotídeo
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Nube Computacional
Tipo de estudio:
Guideline
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Observational_studies
/
Prognostic_studies
Límite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Indian Heart J
Año:
2018
Tipo del documento:
Article
País de afiliación:
Italia