Aortoiliac morphologic correlations in aneurysms undergoing endovascular repair

Kenneth Ouriel¹, Eugene Tanquilut, Roy K Greenberg

¹Department of Vascular Surgery, The Cleveland Clinic Foundation, Desk S40, 9500 Euclid Avenue, Cleveland, OH 44195, USA. ourielk@ccf.org

|August 2, 2003

Summary

Endovascular aneurysm repair feasibility relies on aortoiliac anatomy. This study quantines key morphologic parameters, revealing associations crucial for device development and patient selection in endovascular aneurysm repair.

Area of Science:

Vascular Surgery
Medical Imaging
Biomedical Engineering

Background:

Endovascular aneurysm repair (EVAR) success is contingent upon patient-specific aortoiliac anatomy.
Understanding these morphologic characteristics is vital for both safe device deployment and the development of next-generation EVAR technologies.

Purpose of the Study:

To comprehensively analyze the morphologic characteristics of the aortoiliac segment in patients considered for EVAR.
To identify key anatomical variables influencing EVAR feasibility and device design.

Main Methods:

Computed tomography (CT) scans of 277 patients were analyzed.
Three-dimensional trigonometry was used to estimate aortic neck length and angulation.
Measurements included aortic neck diameter, length, thrombus, calcium content, and neck conicity.

Main Results:

Significant variability was observed in aortoiliac morphologic parameters across the patient cohort.
Key associations were identified: increased sac diameter correlated with increased neck angulation and iliac artery diameter.
Aneurysm sac length inversely correlated with proximal aortic neck length, and increased with sac eccentricity.

Conclusions:

Considerable variability exists in aortoiliac morphology, with significant interrelations between diameter, length, and angulation.
These findings suggest a shared pathogenesis for aortoiliac aberrations.
This anatomical knowledge is essential for developing EVAR devices with wider applicability and improved long-term outcomes.

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Aortoiliac morphologic correlations in aneurysms undergoing endovascular repair

Area of Science:

Background:

Purpose of the Study:

Main Methods:

Main Results:

Conclusions:

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