Strain Elastography: A Valuable Additional Method to BI-RADS?
Ultraschall Med
; 39(5): 526-534, 2018 Oct.
Article
en En
| MEDLINE
| ID: mdl-30176697
ABSTRACT
BACKGROUND:
Breast lesions classified as BI-RADS-US 3 are probably benign and observation was recommended, while a considerable number of BI-RADS-US 4 lesions were benign, resulting in excessive biopsies. We focus exclusively on BI-RADS-US 3 and 4 lesions and hypothesize that improved diagnostic performance can be achieved by integrating real-time elastography (strain ratio) into the BI-RADS-US classification system.METHOD:
From April 2010 to September 2015, 1071 lesions were included in the final analysis. After the conventional ultrasound examination, the BI-RADS-US (2013) classification was used to evaluate the lesions. Then the strain ratios were calculated, and the final diagnosis was made on the basis of histological results. The sensitivity, specificity, accuracy, PPV and NPV were calculated and the AUCs were compared. Additionally, an analysis of the diagnostic performance expressed by the pretest and posttest probability of disease (POD) was performed in BI-RADS-US 3 and 4A lesions.RESULTS:
With the cutoff point of 2.98, the sensitivity, specificity and accuracy of the strain ratio method were 86.9â%, 86.6â% and 82.6â%, respectively. In BI-RADS-US 3 lesions, a suspicious strain ratio significantly modified the POD from 1.3â% to a posttest POD of 29.8â%. In BI-RADS-US 4A lesions, a suspicious strain ratio significantly modified the POD from 8.5â% to a posttest POD of 48.7â%.CONCLUSION:
Ultrasonographic elastography (strain ratio) yields additional diagnostic information in the evaluation of BI-RADS-US 3 and 4 breast lesions. The strain ratios should be integrated into the BI-RADS-US classification system and into daily practice.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
/
Diagnóstico por Imagen de Elasticidad
Tipo de estudio:
Diagnostic_studies
Límite:
Female
/
Humans
Idioma:
En
Revista:
Ultraschall Med
Año:
2018
Tipo del documento:
Article
País de afiliación:
China