Stenbaek J, Kalin B, Swedenborg J
Department of Vascular Surgery, Karolinska Hospital, Stockholm, Sweden.
Eur J Vasc Endovasc Surg. 2000 Nov;20(5):466-9. doi: 10.1053/ejvs.2000.1217.
to investigate the relationships between diameter, surface and thrombus area in abdominal aortic aneurysms (AAAs) <5 cm.
sixty-seven patients with AAA underwent at least 2 CT examinations. At the point of maximal diameter, surface area and thrombus area were calculated and related to rupture, or impending rupture, during follow-up.
the mean increase in measured diameter, surface area and thrombus area were 3.4 mm, 1.9 cm(2)and 1.7 cm(2)per year respectively. Patients with AAA >4 cm and whose thrombus area increased >1.5 cm(2)/year were more likely to rupture (6/24 vs 1/23).
a rapid increase of thrombus area may be a better predictor of AAA rupture than increase in maximal diameter.
研究直径小于5厘米的腹主动脉瘤（AAA）的直径、表面积与血栓面积之间的关系。
67例腹主动脉瘤患者接受了至少2次CT检查。在最大直径处，计算表面积和血栓面积，并与随访期间的破裂或即将破裂情况相关联。
测量的直径、表面积和血栓面积的年平均增加量分别为3.4毫米、1.9平方厘米和1.7平方厘米。腹主动脉瘤直径大于4厘米且血栓面积每年增加超过1.5平方厘米的患者更有可能破裂（24例中有6例，而23例中有1例）。
与最大直径增加相比，血栓面积的快速增加可能是腹主动脉瘤破裂的更好预测指标。
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