|
|
|
| Relationship of power Doppler flow on bladder cancer and depth of tumor invasion |
| WANG Yan, WANG Xue-mei |
| Department of Ultrasonography, First Affiliated Hospital of China Medical University, Shenyang 110001, China |
|
|
|
|
Abstract Objective: To study the blood signal of bladder tumor in power Doppler technique and evaluate the clinical value of power Doppler image(PDI) in examining bladder cancer. Materials and Methods: All 60 patients were examined by ATL-HDI 5000 US system. Then the blood flow characteristics of bladder cancer and the blood flow grades were determined. Some data, such as PSV, EDV, RI, were got from it. The post-operation samples were dyed in HE to confirm the depth of invasion. Results: There were good relationship between PDI blood flow grade, depth of muscle layer invasion, and adjacent tissue invasion, P=0.05. Correlation coefficient was 0.318, 0.355 respectively. RI had significant correlation with depth of muscular layer invasion, P=0.01, and correlative coefficient was 0.540. RI correlated well with adjacent tissue invasion, P=0.05, the correlation coefficient was 0.282. As the depth of muscular layer and adjacent tissue invasion increased, the blood flow signals within tumor increased, RI was rising too. PSV, EDV had no correlation with depth of muscular layer invasion. Conclusion: The more blood signals within tumors, the more tendency of invasion to muscle and adjacent tissue. RI is rising too, which shows RI has some values in determing the nature of bladder cancer.
|
|
Received: 14 January 2008
|
|
|
|
Corresponding Authors:
WANG Xue-mei
|
|
|
|
|
|
|
2008, Vol. 19 
