Categorization and Evaluation of Usefulness of Breast Lesions with using Ultrasound BI-RADS (Breast Imaging Reporting and Data system)
Journal of the Korean Radiological Society
; : 313-318, 2006.
Artigo
em Coreano
| WPRIM (Pacífico Ocidental)
| ID: wpr-66472
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE:
The aim of our study was to determine the positive predictive value (PPV) and to evaluate the usefulness of ultrasound BI-RADS, as compared with the histologic results of breast lesions that were categorized and classified by the ultrasound BI-RADS lexicon. MATERIALS ANDMETHODS:
Between January and December 2004, the ultrasound features of 471 breast lesions in 368 patients were analyzed and categorized with using ultrasound BI-RADS. All of the lesions were compared with the histological results. We categorized category 2 and 3 lesions as benign lesions, and category 4 and 5 lesions as malignant lesions. We then calculated the sensitivity, specificity, positive predictive value, negative predictive value and accuracy.RESULTS:
The breast lesions were histologically diagnosed as 298 cases of category 2, 21 cases of category 3, 108 cases of category 4 and 44 cases of category 5. The categorical malignancy rate was 1% (3/298) in category 2 lesions, 4.7% (1/21) in category 3 lesions, 8.3% (9/108) in category 4 lesions and 90.9% (40/44) in category 5 lesions. Within category 4, the malignancy rate for category 4a lesions was 5.4% (5/92), the malignancy rate for category 4b lesions was 1.3% (1/8) and the malignancy rate for category 4c lesions was 50% (4/8). The sensitivity, specificity, positive predictive value and negative predictive value were 90.6%, 75.1%, 31.6% and 98.4%, respectively. The statistically valid ultrasound features that were correlated with malignancy were an ill defined margin, a microlobulated mass, an irregular mass, inhomogenic echogenicity, an echogenic halo and an older patient age.CONCLUSION:
Ultrasound BI-RADS was useful in differentiating benign from malignant breast lesions.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Mama
/
Ultrassonografia
/
Sensibilidade e Especificidade
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Radiological Society
Ano de publicação:
2006
Tipo de documento:
Artigo