Abstract
Objective To determine whether the tumor size of breast cancer is correlated with the characteristics of ultrasound contrast [peak intensity (PI) , time to peak (TTP) , blood flow grading]. Methods Forty- five patients, diagnosed with breast cancer by pathology in our hospital between January 2010 and January 2015, were randomly included in the study. According to the maximum diameter of the tumor (<10 mm, 10~20 mm, ≥20 mm) , all patients were divided into 3 groups. The differences among PI, TTP and blood flow grading in the 3 groups were analyzed based on time- intensity curve. Results There were statistically significant differences in PI and TTP among the maximum tumor diameter <10 mm, 10~20 mm, ≥20 mm groups (PI: 16.48±2.19 vs 23.15±2.06 vs 24.50±5.40, TTP: 17.23±2.72 vs 14.10±1.64 vs 7.69±1.38, all P<0.05). As the tumor size increased, PI showed a trend of increasing and TTP showed a trend of decreasing. There was no statistical significance in the blood flow grading among the 3 groups (P= 0.142). Conclusion The tumor size of breast cancer significantly influences the characteristics of ultrasound contrast (PI, TTP). Key words: Breast tumor; Ultrasonography, interventional; Peak intensity; Time to peak; Blood flow grading
Published Version
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