dissection plane
The anatomical layer within arterial wall tissue where separation occurs during coronary dissection.
Full Definition
The specific tissue interface within the coronary artery wall where separation occurs during interventional procedures or spontaneous dissection events. Understanding dissection planes is crucial for procedural planning and complication management. Dissections may occur between the intima and media (subintimal), within the media layer (intramedial), or between the media and adventitia (subadventitial). The location of the dissection plane influences healing potential, risk of vessel closure, and treatment strategies. Angiographic appearance and intravascular imaging help identify the dissection plane and guide management decisions.
Usage
Usage note: Two words without hyphenation; specify anatomical layer when documenting.
In Context
- "Optical coherence tomography revealed a subintimal dissection plane extending beyond the stented segment." — Imaging interpretation report
- "Recognition of the correct dissection plane is essential for chronic total occlusion revascularization." — Training manual