Diagnostic value of acoustic radiation force impulse for BI-RADS category 4 breast lesions of different sizes.
Clin Hemorheol Microcirc
; 70(2): 143-154, 2018.
Article
em En
| MEDLINE
| ID: mdl-29710678
ABSTRACT
OBJECTIVE:
To determine the diagnostic value of combined conventional ultrasound (US) and acoustic radiation force impulse (ARFI) imaging for the differential diagnosis of BI-RADS category 4 breast lesions of different sizes. MATERIALS ANDMETHODS:
From April 2013 to January 2015, 283 patients (with a total of 292 breast lesions) who underwent US and ARFI examination were included in this retrospective study. The SWV for the lesion and adjacent normal breast tissue were measured and the SWV ratio was calculated. VTI grade was also assessed. The lesions were separated into three groups on the basis of size, and two combinations of ARFI parameters (SWVâ+âVTI and SWV ratioâ+âVTI) were applied to reassess the BI-RADS categories. Diagnoses were confirmed by pathological examination after biopsy or surgery. ROC analysis was performed to assess the diagnostic efficiency of each method. The Z test was used to compare the difference between AUC of the two methods.RESULTS:
Significant improvement was seen in the diagnostic performance of US with the use of the ARFI parameters SWVâ+âVTI (77/179 [43.0%] of BI-RADS category 4A breast lesions were downgraded) and SWV ratioâ+âVTI (64/179 [35.8%] of BI-RADS category 4A breast lesions were downgraded, including two malignant cases that were misdiagnosed as benign) (Pâ<â0.01). The difference between the performances of the two combinations-SWVâ+âVTI and SWV ratioâ+âVTI-was significant only in breast lesionsâ<10âmm in size, where the AUC of SWV ratioâ+âVTI was significantly greater than the AUC of SWVâ+âVTI (0.929 vs. 0.874; Pâ<â0.01).CONCLUSION:
Combination of US with ARFI can improve diagnostic performance and help avoid unnecessary biopsy in BI-RADS category 4 breast lesions. The combination of SWV ratioâ+âVTI can improve BI-RADS classification of small lesions (<10âmm size).Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Mama
/
Neoplasias da Mama
/
Técnicas de Imagem por Elasticidade
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
Limite:
Adolescent
/
Adult
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Aged
/
Aged80
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Female
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Humans
/
Middle aged
Idioma:
En
Revista:
Clin Hemorheol Microcirc
Assunto da revista:
ANGIOLOGIA
/
HEMATOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
China