Morphological features and endovascular repair for type B multichanneled aortic dissection: A case report

Area of Science:

• Cardiovascular Surgery
• Medical Imaging
• Aortic Diseases

Background:

• Multichanneled aortic dissection (MCAD) is a rare variant of aortic dissection, characterized by the formation of additional false lumens.
• MCAD presents significant challenges due to high perioperative mortality and morbidity.
• The precise morphological characteristics and optimal treatment strategies for MCAD remain incompletely understood.

Observation:

• A case of type B aortic dissection with multiple channels was diagnosed in a 64-year-old male presenting with severe epigastric pain.
• Computed tomography angiography identified extensive false lumens from the left subclavian artery to the bilateral femoral arteries.
• Medical 3D modeling was utilized to visualize the complex anatomy and identify the entry points of the false lumens.

Findings:

• Medical 3D modeling precisely delineated the extent and location of multiple lumens.
• The study identified aortic wall fragility and true lumen collapse as critical morphological features of MCAD.
• This imaging technique facilitated the exclusion of multiple false lumens using a single stent-graft.

Implications:

• 3D modeling offers a valuable tool for understanding the complex morphology of MCAD.
• Accurate anatomical depiction aids in planning and executing effective therapeutic interventions for MCAD.
• Further research into MCAD morphology and treatment is warranted to improve patient outcomes.