Imaging – Coronary

What is this Yin and Yang like appearance on IVUS?

Image in interventional cardiovascular medicine: what is displayed on this image? ... And do not hesitate to comment on how you would treat this case!

A middle-aged male presented with unstabe angina. He had a tight stenosis in mid RCA. The IVUS pullback after doing pre dilatation revealed this image which appeared like a Yin and Yang symbol.

An image is worth a 1,000 words: participate in the quiz below to tell us what you see in this image!