Investigation and application of bolus chasing DSA technology

Objective: To discuss the application of the bolus chasing DSA technology in angiography in thoracic, abdominal, common iliac and four limbs' arteries. Methods: Bolus chasing DSA with Mask Before program of the system was performed in 40 procedures in 25 patients, using the control handle to control the moving of the bed, and obtained the real time bolus chasing DSA pictures at the blood stream speed. Results: In the 40 procedures, photographing in 35 had good qualities, accounting for 87.5%, but not good in 5, accounting for 12.5%, which could still meet the request of diagnosing after non-subtraction processing. Conclusion: Bolus chasing DSA could display a large scale of anatomical skeleton and blood stream condition from chest to the four limbs exactly. It was a new method that could be taken to observe real time continuous multi-sections of blood vessel structure