根據Crawford classification的分類,thoracoabdominal aneurysm involve the distal half or less of the descending thoracic aorta and varying portions of the abdominal aorta時,是屬於那一型?

A. Type I

B. Type II

C. Type III

D. Type IV

E. Type V

 

Ans: C.

 

Classification

Description

Description

Type 1

Left subclavian to suprarenal abdominal aorta

左鎖骨下動脈到腎動脈之前

Type 2

(Left) Subclavian to the aortoiliac bifurcation

左鎖骨下動脈到主髂動脈分叉處

Type 3

Distal thoracic aorta to the aortoiliac bifurcation

()胸主動脈後段到主髂動脈分叉處

Type 4

Abdominal aorta below the diaphragm

橫膈以下的副主動脈

 

Crawford_classification.PNG


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