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基于深度学习的人工智能技术在结直肠息肉性质鉴别中的应用 被引量:3
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作者 朱兴旺 严俊 +2 位作者 何英丽 刘刚 李汛 《世界华人消化杂志》 CAS 2021年第20期1201-1206,共6页
结直肠癌是明确可以从结肠镜筛查中获益且最宜开展筛查的癌症,2017年中国结直肠癌新发病例约431951例,发病人数在28年间增长了203.5%.在结肠镜检查中对腺瘤性息肉等癌前病变早发现、早切除,可预防结直肠癌的发生,然而各种因素导致结肠... 结直肠癌是明确可以从结肠镜筛查中获益且最宜开展筛查的癌症,2017年中国结直肠癌新发病例约431951例,发病人数在28年间增长了203.5%.在结肠镜检查中对腺瘤性息肉等癌前病变早发现、早切除,可预防结直肠癌的发生,然而各种因素导致结肠镜检查过程中息肉的漏诊,使结直肠癌发生的风险增加.近年来随着人工智能技术(artificial intelligence,AI)在医学领域的应用,AI辅助结肠镜检查能增加息肉的检出率(adenoma detection rate,ADR),提高结肠镜检查的质量.本文主要就以卷积神经网络(convolutional neural network,CNN)为架构的AI辅助系统在结肠镜检查中的的质量控制(automatic quality control system,AQCS)、肠道准备、结直肠息肉的诊断与分型以及AI在结肠镜领域未来面对的机遇与挑战等方面进行综述,希望能给临床工作提供一些参考. 展开更多
关键词 人工智能 深度学习 结肠镜检查 结直肠息肉 腺瘤检出率
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Overview of bile acid signaling in the cardiovascular system 被引量:5
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作者 Rou Zhang Wen-Qi Ma +6 位作者 Meng-Jun Fu Juan Li Chun-Hua Hu Yi Chen Mi-Mi Zhou Zhi-Jie Gao ying-li he 《World Journal of Clinical Cases》 SCIE 2021年第2期308-320,共13页
Bile acids(BAs)are classically known to play a vital role in the metabolism of lipids and in absorption.It is now well established that BAs act as signaling molecules,activating different receptors(such as farnesoid X... Bile acids(BAs)are classically known to play a vital role in the metabolism of lipids and in absorption.It is now well established that BAs act as signaling molecules,activating different receptors(such as farnesoid X receptor,vitamin D receptor,Takeda G-protein-coupled receptor 5,sphingosine-1-phosphate,muscarinic receptors,and big potassium channels)and participating in the regulation of energy homeostasis and lipid and glucose metabolism.In addition,increased BAs can impair cardiovascular function in liver cirrhosis.Approximately 50%of patients with cirrhosis develop cirrhotic cardiomyopathy.Exposure to high concentrations of hydrophobic BAs has been shown to be related to adverse effects with respect to vascular tension,endothelial function,arrhythmias,coronary atherosclerotic heart disease,and heart failure.The BAs in the serum BA pool have relevant through their hydrophobicity,and the lipophilic BAs are more harmful to the heart.Interestingly,ursodeoxycholic acid is a hydrophilic BA,and it is used as a therapeutic drug to reverse and protect the harmful cardiac effects caused by hydrophobic elevated BAs.In order to elucidate the mechanism of BAs and cardiovascular function,abundant experiments have been conducted in vitro and in vivo.The aim of this review was to explore the mechanism of BAs in the cardiovascular system. 展开更多
关键词 Bile acids CARDIOVASCULAR ARTERIES RECEPTORS SIGNALING CIRRHOSIS
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