Question:

Which of the following answer choices is false?
1. Proximal neck diameter can be defined as the length of normal aorta proximal to the aneurysm in the horizontal plane measured from the inferior portion of the renal artery to the most superior extent of the aneurysm.
2. Proximal neck angulation is defined as the angle formed between the line that transects the normal aorta proximal to the aneurysm and the line that transects the long axis of the aneurysm.
3. In EVAR, access is gained through a cut in the external iliac artery and insertion of a catheter.
4. EVAR is widely practiced, and more than 20,000 EVAR procedures occur every year in the United States.
5. Proximal neck length can be defined as the length of normal aorta proximal to the aneurysm measured from the inferior portion of the renal artery to the most superior extent of the aneurysm.





Answer:

The correct answer for the question "Which of the following answer choices is false?" is:

3. In EVAR, access is gained through a cut in the external iliac artery and insertion of a catheter.



Explanation
1.    Proximal neck diameter is the length of normal aorta proximal to the aneurysm in the horizontal plane measured from the inferior portion of the renal artery to the most superior extent of the aneurysm. (Proximal neck length can be defined as the length of normal aorta proximal to the aneurysm measured from the inferior portion of the renal artery to the most superior extent of the aneurysm. Proximal neck diameter is the length of normal aorta proximal to the aneurysm in the horizontal plane measured from the inferior portion of the renal artery to the most superior extent of the aneurysm.)

2.    Proximal neck angulation is the angle formed between the line that transects the normal aorta proximal to the aneurysm and the line that transects the long axis of the aneurysm. (Proximal neck angulation is defined as the angle formed between the line that transects the normal aorta proximal to the aneurysm and the line that transects the long axis of the aneurysm.)

3.    In EVAR, access is gained through a cut in the femoral artery and insertion of a catheter, not through the external iliac artery. (In EVAR, access is gained through a cut in the femoral artery and insertion of a catheter.)

4.    EVAR is now widely practiced, and more than 20,000 procedures occur every year in the United States. (This technique is now widely practiced, and more than 20,000 EVAR procedures occur every year in the United States, a number that represents about 40% of all abdominal aortic aneurysm (AAA) repairs (3).)

5.    Proximal neck length is the length of normal aorta proximal to the aneurysm measured from the inferior portion of the renal artery to the most superior extent of the aneurysm. (Proximal neck length can be defined as the length of normal aorta proximal to the aneurysm measured from the inferior portion of the renal artery to the most superior extent of the aneurysm. Proximal neck diameter is the length of normal aorta proximal to the aneurysm in the horizontal plane measured from the inferior portion of the renal artery to the most superior extent of the aneurysm.)



From the manuscript:
Utility of aortic cuffs in converting initially ineligible patients due to unfavorable neck anatomy into successful candidates for endovascular aortic aneurysm repair: A Case Series
Radiology Case. 2010 Mar; 4(3):1-10


This article belongs to the Interventional section.




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From the manuscript

Utility of aortic cuffs in converting initially ineligible patients due to unfavorable neck anatomy into successful candidates for endovascular aortic aneurysm repair: A Case Series

Free full text article: Utility of aortic cuffs in converting initially ineligible patients due to unfavorable neck anatomy into successful candidates for endovascular aortic aneurysm repair: A Case Series

Abstract
Endovascular repair of the abdominal aortic aneurysm has been established as a successful alternative to open surgical repair, provided that the criteria necessary for such an approach are fulfilled. Anatomic criteria include suitable diameter, length, and angle of the aneurysm proximal neck. We present three cases in which patients were initially ineligible for endovascular repair because of unfavorable neck anatomy but in whom the use of aortic cuffs allowed for successful endograft placement and aneurysm exclusion.






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