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Calculation of the Optimal Angiographic View Using Intravascular Ultrasound by the Tip Detection Method
Yohei Fukata1, Ryohei Yoshikawa2, Atsunori Okamura3
1Department of Clinical Engineering, Sanda City Hospital, Sanda, Hyogo, Japan.
Objectives:
We aimed to calculate the optimal angiographic view from an intravascular ultrasound (IVUS) image using the tip detection (TD) method.
Key Steps:
Using the TD method, we identified the orientation of the angiographic image on the IVUS image. The IVUS image was superimposed on the angiographic image. The angle at which the target could be most clearly distinguished was measured using the angle measurement function of the IVUS device. The position of the detector providing the optimal angiographic view was determined.
Potential Pitfalls:
The detector has restricted range of motion. Also, the direction of movement of the detector can be complicated where sharp curvature of the vessels occurs.
Take-Home Messages:
Our technique, "calculation of the optimal angiographic view using IVUS" (COA view), yielded good results for treating bifurcation lesions. The COA view method can be used to determine the optimal angiographic view from IVUS images.
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