Background: Aortic dissection (AD) is a relatively rare but dreadful illness, often accompanied by severe, sharp (or tearing) back pain or anterior chest pain, as well as acute hemodynamic compromise. Painless dissect...Background: Aortic dissection (AD) is a relatively rare but dreadful illness, often accompanied by severe, sharp (or tearing) back pain or anterior chest pain, as well as acute hemodynamic compromise. Painless dissection has also been reported in rare cases and might be misdiagnosed due to its atypical symptoms leading to catastrophic outcomes. Case presentation: The patient was admitted to the hospital due to right limb weakness with speech inability for more than 10 hours. In the routine cardiac ultrasound examination, the avulsion intimal echo was found in the initial segment of the descending aorta. The rupture range was about 11 mm, and the lumen was separated into real and false lumen. Further computed tomography angiography (CTA) examination confirmed the major arterial dissection (De Bakey Type I). Conclusion: We report a case of painless aortic dissection with active carotid artery thrombosis diagnosed by ultrasound and CTA, and to improve the understanding of painless aortic dissection by reviewing relevant domestic and foreign literature.展开更多
目的采用双能量CT血管成像(dual energy CTA,DECTA)研究颈动脉斑块形态特征,并探讨除狭窄度之外与缺血性脑血管病相关的风险因子。方法对412例有脑缺血性症状的患者,使用双能量CTA进行扫描,运用CT重建技术进行重建,评估颈动脉斑块的形...目的采用双能量CT血管成像(dual energy CTA,DECTA)研究颈动脉斑块形态特征,并探讨除狭窄度之外与缺血性脑血管病相关的风险因子。方法对412例有脑缺血性症状的患者,使用双能量CTA进行扫描,运用CT重建技术进行重建,评估颈动脉斑块的形态特征和颈动脉狭窄度,其中包括斑块密度,表面形态,钙化程度,并记录有无管腔内栓子形成。斑块表面形态分为平滑,不规则和溃疡三类。结果 412个患者217个有右侧半球症状,195有左侧半球症状。颈动脉梗阻(P=0.01,OR=6.72),重度狭窄(70%-99%)(P=0.05,OR=2.10),和溃疡斑块形成(P=0.04,OR=0.97)高度预示同侧脑缺血症状。多变量Logistic回归分析结果溃疡斑块(P=0.05,OR=0.92)与同侧脑缺血症状相关,平滑斑块(P=0.05,OR=0.65)及重度钙化斑块(P=0.04,OR=0.67)与同侧无症状具有相关性。结论DECTA成像可以对颈动脉粥样硬化斑块表面形态进行分类,斑块表面溃疡与脑缺血病变具有相关性,平滑斑块及重度钙化斑块也具有预测作用。展开更多
文摘Background: Aortic dissection (AD) is a relatively rare but dreadful illness, often accompanied by severe, sharp (or tearing) back pain or anterior chest pain, as well as acute hemodynamic compromise. Painless dissection has also been reported in rare cases and might be misdiagnosed due to its atypical symptoms leading to catastrophic outcomes. Case presentation: The patient was admitted to the hospital due to right limb weakness with speech inability for more than 10 hours. In the routine cardiac ultrasound examination, the avulsion intimal echo was found in the initial segment of the descending aorta. The rupture range was about 11 mm, and the lumen was separated into real and false lumen. Further computed tomography angiography (CTA) examination confirmed the major arterial dissection (De Bakey Type I). Conclusion: We report a case of painless aortic dissection with active carotid artery thrombosis diagnosed by ultrasound and CTA, and to improve the understanding of painless aortic dissection by reviewing relevant domestic and foreign literature.
文摘目的采用双能量CT血管成像(dual energy CTA,DECTA)研究颈动脉斑块形态特征,并探讨除狭窄度之外与缺血性脑血管病相关的风险因子。方法对412例有脑缺血性症状的患者,使用双能量CTA进行扫描,运用CT重建技术进行重建,评估颈动脉斑块的形态特征和颈动脉狭窄度,其中包括斑块密度,表面形态,钙化程度,并记录有无管腔内栓子形成。斑块表面形态分为平滑,不规则和溃疡三类。结果 412个患者217个有右侧半球症状,195有左侧半球症状。颈动脉梗阻(P=0.01,OR=6.72),重度狭窄(70%-99%)(P=0.05,OR=2.10),和溃疡斑块形成(P=0.04,OR=0.97)高度预示同侧脑缺血症状。多变量Logistic回归分析结果溃疡斑块(P=0.05,OR=0.92)与同侧脑缺血症状相关,平滑斑块(P=0.05,OR=0.65)及重度钙化斑块(P=0.04,OR=0.67)与同侧无症状具有相关性。结论DECTA成像可以对颈动脉粥样硬化斑块表面形态进行分类,斑块表面溃疡与脑缺血病变具有相关性,平滑斑块及重度钙化斑块也具有预测作用。
