HAIS 2010 Jon Haitz Legarreta Gorroño Researcher – eHealth and Biomedical Applications Department [email protected]Hybrid Decision Support System for Endovascular Aortic Aneurysm Repair Follow-Up HAIS 2010 5th International Conference on Hybrid Artificial Intelligent Systems 1
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HAIS 2010
Jon Haitz Legarreta Gorroño
Researcher – eHealth and Biomedical Applications Department
Hybrid Decision Support System for Endovascular Aortic
Aneurysm Repair Follow-Up
HAIS 2010
5th International Conference on Hybrid Artificial Intelligent Systems
1
HAIS 2010
OUTLINE
1. Introduction2. Objectives3. System overview4. Results and Discussion5. Conclusions and Future Work
Hybrid Decision Support System for Endovascular Aortic Aneurysm Repair Follow-Up
2
HAIS 2010
An overview of the medical problem (I)
What is an abdominal aorticaneurysm?
An abdominal aortic aneurysm (alsoknown as AAA) is a localizeddilatation (ballooning) of theabdominal aorta, exceeding thenormal diameter (50% increaseover normal aorta diameter or 3 cmof enlargement).
Hybrid Decision Support System for Endovascular Aortic Aneurysm Repair Follow-Up 3
Introduction
AAA affected patient. Volume render
1. Introduction
2. Objectives
3. System overview
4. Results andDiscussion
5. Conclusions andFuture Work
Source: Stanford Computer Graphics Laboratory
HAIS 2010
Surgical repair of AAAs
Natural behaviour is to grow larger.
Survival rate to rupture is less than 10%.
Two surgical repair techniques:
Open Repair (OR): The weakened (ballooned) portion of the aorta is replacedwith a stent graft that is matched to the normal aorta and sewn in place.
Endovascular Aneurysm Repair (EVAR): A stent graft is inserted throughthe femoral arteries in order to exclude the bulge from blood circulation. Acatheter serves as a guide.
Hybrid Decision Support System for Endovascular Aortic Aneurysm Repair Follow-Up 4
Introduction
Source: Hallet et al.: Comprehensive Vascular and Endovascular Surgery, 2004 Elsevier Ltd.
AAA treatment with a modular Quantum (CORDIS, Johnson & Johnson) stent graft
1. Introduction
2. Objectives
3. System overview
4. Results andDiscussion
5. Conclusions andFuture Work
HAIS 2010
Where do the biomedical engineers come up?
A successful outcome of EVAR means bulge shrinking; after EVAR AAAsmay shrink or may not.
Screening is necessary.
Hybrid Decision Support System for Endovascular Aortic Aneurysm Repair Follow-Up 5