[Quantitative and qualitative analysis of the blood flow in breast tumors using power Doppler ultrasound]. / Quantitative und qualitative Analysen der Durchblutung von Mammatumoren mittels Power-Doppler-Ultraschall.
Ultraschall Med
; 29 Suppl 5: 233-8, 2008 Dec.
Article
em De
| MEDLINE
| ID: mdl-18773383
ABSTRACT
PURPOSE:
Our study was performed to obtain additional information regarding the present diagnostic approaches in breast tumor diagnosis by investigating tumor vessels. We present a new method that helps to capture the morphologic features from power Doppler ultrasound images using a computer-aided system facilitating pixel relation analysis techniques in the region of interest (ROI). MATERIALS ANDMETHODS:
45 solid breast tumors, including 18 benign and 27 malignant histologically proven cases, were studied using quantitative and qualitative parameters with extracted three-dimensional (3D) diagrams. We focused on pixel counting and on physiologic and pathophysiologic vascular analysis over time. P values less than 0.05 using the Wilcoxon, Mann and Whitney's U-test were deemed statistically significant.RESULTS:
One of the two quantitative values, the color range, showed a statistical significance for distinguishing between benign and malignant lesions by counting more pixels in malignant cases. We detected differences in the blood flow dynamics with a characteristic flow texture in 89 % of benign lesions and periodic oscillations which were identified with a diagnostic accuracy of 78 % in malignant cases.CONCLUSION:
The preliminary results show that the proposed method using power Doppler imaging is feasible and can aid in the classification of breast tumors as benign or malignant.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Mama
/
Doenças Mamárias
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Neoplasias da Mama
/
Ultrassonografia Doppler
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Qualitative_research
Limite:
Adult
/
Aged
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Aged80
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Female
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Humans
/
Middle aged
Idioma:
De
Ano de publicação:
2008
Tipo de documento:
Article