切换至 "中华医学电子期刊资源库"

中华医学超声杂志(电子版) ›› 2021, Vol. 18 ›› Issue (07) : 710 -714. doi: 10.3877/cma.j.issn.1672-6448.2021.07.018

基础研究

兔脑死亡状态下肝超声造影微血流灌注研究
高农1, 潘宜鹏2, 任秀昀1,()   
  1. 1. 100039 北京,解放军总医院第三医学中心超声科
    2. 100039 北京,解放军总医院第三医学中心器官移植科
  • 收稿日期:2020-03-10 出版日期:2021-07-01
  • 通信作者: 任秀昀
  • 基金资助:
    北京市自然科学基金项目(7212139)

Investigation of liver microperfusion by contrast-enhanced ultrasound in rabbits with brain death

Nong Gao1, Yipeng Pan2, Xiuyun Ren1()   

  1. 1. Department of Ultrasound, the Third Medical Center of PLA General Hospital, Beijing 100039, China
    2. Department of Transplantation, the Third Medical Center of PLA General Hospital, Beijing 100039, China
  • Received:2020-03-10 Published:2021-07-01
  • Corresponding author: Xiuyun Ren
引用本文:

高农, 潘宜鹏, 任秀昀. 兔脑死亡状态下肝超声造影微血流灌注研究[J]. 中华医学超声杂志(电子版), 2021, 18(07): 710-714.

Nong Gao, Yipeng Pan, Xiuyun Ren. Investigation of liver microperfusion by contrast-enhanced ultrasound in rabbits with brain death[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2021, 18(07): 710-714.

目的

应用超声造影分析兔脑死亡状态下肝微血流灌注定量参数,探讨评估脑死亡供肝的新方法。

方法

制备兔脑死亡组(15只)和对照组(5只)模型并维持状态达8 h,对脑死亡组和对照组于模型制备完成后0 h、4 h、8 h进行肝超声造影检查和微血流灌注定量分析,定量参数包括曲线下面积(AUC)、峰值强度(Peak)、达峰时间(Tp)、平均渡越时间(MTT)。采用t检验比较脑死亡组与对照组0 h、4 h、8 h肝超声造影定量参数AUC、Peak、Tp及MTT的差异,同时进行肝功能和病理检查。

结果

脑死亡状态下,13只兔(13/15,86.7%)AUC值呈逐渐下降趋势,15只(15/15,100%)兔的Peak值呈逐渐下降趋势。建模后0 h脑死亡组Peak值高于对照组[(66.1±9.1)% vs (54.9±7.3)%],建模后8 h脑死亡组Peak值低于对照组[(44.9±10.3)% vs (68.5±2.9)%],且差异均具有统计学意义(t=-11.276,P=0.032;t=-10.395,P=0.001);建模后4 h,脑死亡组和对照组的Peak值比较,差异无统计学意义(P>0.05)。建模后8 h,脑死亡组AUC值小于对照组[(2591.7±732.7)%s vs(4520.0±182.8)%s],差异有统计学意义(t=-18.762,P=0.001);建模后0 h、4 h,脑死亡组和对照组的AUC值比较,差异均无统计学意义(P均>0.05)。建模后0 h、4 h、8 h,脑死亡组和对照组Tp值和MTT值比较,差异均无统计学意义(P均>0.05)。

结论

兔脑死亡状态下肝微血流灌注量下降,超声造影可作为评估脑死亡供肝的有效方法。

Objective

To analyze the quantitative parameters of hepatic microperfusion by contrast-enhanced ultrasound in rabbits with brain death, in order to explore a new method for evaluating the donor liver of individuals with brain death.

Methods

Rabbits with brain death (n=15) were prepared by surgery and maintained for 8 hours, and rabbits undergoing sham operation were used as controls (n=5). Contrast-enhanced ultrasonography and quantitative analysis of microblood flow were performed in the two groups at 0 h, 4 h, and 8 h after modeling. The quantitative parameters included area under the curve (AUC), peak intensity (PI), peak time (Tp), and average transit time (MTT). The t-test was used to compare the differences of liver contrast-enhanced ultrasound quantitative parameters AUC, PI, Tp, and MTT between the two groups at different time points. Liver function and pathology were evaluated at the same time.

Results

Under the condition of brain death, the AUC values of 13 rabbits (13/15, 86.7%) showed a gradually downward trend, and the PI values of 15 rabbits (15/15, 100%) showed a gradually downward trend. At 0 h after modeling, the PI value of the brain death group was significantly higher than that of the control group [(66.1±9.1)% vs (54.9±7.3)%, t=-11.276, P=0.032], and at 8 h, the PI value of the brain death group was significantly lower than that of the control group [(44.9±10.3)% vs (68.5±2.9)%, t=-10.395, P=0.001]; at 4 h, there was no significant difference in the PI value between the two groups (P>0.05). Eight hours after modeling, the AUC value of the brain death group was significantly lower than that of the control group [(2591.7 ±732.7)%s vs (4520.0 ±182.8)%s, t=-18.762, P<0.001], but there was no significant difference at 0 h and 4 h (P>0.05). At 0 h, 4 h, and 8 h after modeling, there was no significant difference in the Tp scores and MTT values between the two groups (P>0.05).

Conclusion

The amount of hepatic microperfusion decreases in rabbits with brain death, and contrast-enhanced ultrasound can be used as an effective method to evaluate the donor liver of individuals with brain death.

图1 14号兔脑死亡后时间强度曲线曲线下面积(AUC)值呈逐渐下降趋势。图a为脑死亡后0 h,AUC的其中一个分析值为4216%s;图b为脑死亡后4 h,AUC的其中一个分析值为3104%s;图c为脑死亡后8 h,AUC的其中一个分析值为2719%s
图2 6号兔脑死亡后不同时间的峰值强度(Peak)值。图a为脑死亡后0 h,Peak的一个分析值为50.6%;图b为脑死亡后4 h,Peak的一个分析值为29.5%;图c为脑死亡后8 h,Peak的一个分析值为16.8%
表1 脑死亡组和对照组不同时间超声造影检查参数比较(
xˉ
±s
1
Bugge JF. Brain death and its implications for management of the potential organ donor [J]. Acta Anaesthesiol Scand, 2009, 53(10): 1239-1250.
2
Dziodzio T, Biebl M, Pratschke J. Impact of brain death on ischemia/reperfusion injury in liver transplantation [J]. Curr Opin Organ Transplant, 2014, 19(2): 108-114.
3
Kahn J, Schemmer P. Control of ischemia-reperfusion injury in liver transplantation: potentials for increasing the donor pool [J]. Visc Med, 2018, 34(6): 444-448.
4
潘宜鹏, 刘煜, 李明, 等. 改良颅内加压法兔脑死亡模型建立及其状态的维持 [J]. 中国比较医学杂志, 2016, 26(1): 38-41.
5
Desai KK, Dikdan GS, Shareef A, et al. Ischemic preconditioning of the liver:a few perspectives from the bench to bedside translation [J]. Liver Transpl, 2008, 14(11): 1569-1577.
6
Li H, Li J. Application of real-time contrast-enhanced ultrasound in differential diagnosis of liver malignancies [J]. Can J Physiol Pharmacol, 2019, 97(5): 341-344.
7
任秀昀, 焦健, 张延, 等. 肝细胞肝癌的超声造影参数成像分析研究 [J]. 医学影像学杂志, 2012, 22(7): 1133-1136.
8
Ren X, Luo Y, Gao N, et al. Common ultrasound and contrast-enhanced ultrasonography in the diagnosis of hepatic artery pseudoaneurysm after liver transplantation [J]. Exp Ther Med, 2016, 12(2): 1029-1033.
9
Van Der Hoeven JA, Moshage H, Schuurs T, et al. Brain death induces apoptosis is in donor liver of the rat [J]. Transplantation, 2003, 76(8): 1150-1154.
10
Saidi RF. Changing pattern of organ donation and utilization in the USA [J]. Int J Organ Transplant Med, 2012, 3(4): 149-156.
11
钟自彪, 叶啟发, 范晓礼, 等. 家兔脑死亡后肝损伤机制 [J/CD]. 中华肝脏外科手术学电子杂志, 2013, 2(5): 322-326.
12
Yang HK, Burns PN, Jang HJ, et al. Contrast-enhanced ultrasound approach to the diagnosis of focal liver lesions: the importance of washout [J]. Ultrasonography, 2019, 38(4): 289-301.
[1] 吕琦, 惠品晶, 丁亚芳, 颜燕红. 颈动脉斑块易损性的超声造影评估及与缺血性卒中的相关性研究[J]. 中华医学超声杂志(电子版), 2023, 20(10): 1040-1045.
[2] 丁雷, 罗文, 杨晓, 庞丽娜, 张佩蒂, 刘海静, 袁佳妮, 刘瑾. 高帧频超声造影在评价C-TIRADS 4-5类甲状腺结节成像特征中的应用[J]. 中华医学超声杂志(电子版), 2023, 20(09): 887-894.
[3] 张茜, 陈佳慧, 高雪萌, 赵傲雪, 黄瑛. 基于高帧频超声造影的影像组学特征鉴别诊断甲状腺结节良恶性的价值[J]. 中华医学超声杂志(电子版), 2023, 20(09): 895-903.
[4] 朱连华, 费翔, 韩鹏, 姜波, 李楠, 罗渝昆. 高帧频超声造影在胆囊息肉样病变中的鉴别诊断价值[J]. 中华医学超声杂志(电子版), 2023, 20(09): 904-910.
[5] 李淼, 朱连华, 韩鹏, 姜波, 费翔. 高帧频超声造影评价肝细胞癌血管形态与风险因素的研究[J]. 中华医学超声杂志(电子版), 2023, 20(09): 911-915.
[6] 张卫平, 王婧玲, 刘志兴, 陈莉, 谌芳群. 肾透明细胞癌高帧频超声造影时间-强度曲线特征分析[J]. 中华医学超声杂志(电子版), 2023, 20(09): 916-922.
[7] 丁建民, 秦正义, 张翔, 周燕, 周洪雨, 王彦冬, 经翔. 超声造影与普美显磁共振成像对具有高危因素的≤3 cm肝结节进行LI-RADS分类诊断的前瞻性研究[J]. 中华医学超声杂志(电子版), 2023, 20(09): 930-938.
[8] 韩丹, 王婷, 肖欢, 朱丽容, 陈镜宇, 唐毅. 超声造影与增强CT对儿童肝脏良恶性病变诊断价值的对比分析[J]. 中华医学超声杂志(电子版), 2023, 20(09): 939-944.
[9] 刘嘉嘉, 王承华, 陈绪娇, 刘瑗玲, 王善钰, 屈海花, 张莉. 经阴道子宫-输卵管实时三维超声造影中患者疼痛发生情况及其影响因素分析[J]. 中华医学超声杂志(电子版), 2023, 20(09): 959-965.
[10] 张旭, 徐建平, 苏冬明, 王彩芬, 王大力, 张文智. 男性乳腺肿块的超声造影特征[J]. 中华医学超声杂志(电子版), 2023, 20(08): 854-859.
[11] 邵华, 那子悦, 荆慧, 李博, 王秋程, 程文. 术前经皮超声造影对乳腺癌腋窝前哨淋巴结转移及负荷的诊断价值[J]. 中华医学超声杂志(电子版), 2023, 20(08): 849-853.
[12] 王晗宇, 张司可, 张羽, 万欣, 贺秋霞, 李明明, 杨秀华. 超声造影在脑胶质瘤切除术术中的应用价值[J]. 中华医学超声杂志(电子版), 2023, 20(07): 755-760.
[13] 谢迎东, 孙帼, 徐超丽, 杨斌, 孙晖, 戴云. 超声造影定量评价不同生存期移植肾血流灌注的临床价值[J]. 中华医学超声杂志(电子版), 2023, 20(07): 749-754.
[14] 谭芳, 杨娇娇, 沈玉琴, 李炎菲海, 王海蕊, 范思涵, 纪学芹. 胎儿心脏定量分析技术对正常胎儿心脏形态及收缩功能的评价[J]. 中华医学超声杂志(电子版), 2023, 20(06): 598-604.
[15] 蒋佳纯, 王晓冰, 陈培荣, 许世豪. 血清学指标联合常规超声及超声造影评分诊断原发性干燥综合征的临床价值[J]. 中华医学超声杂志(电子版), 2023, 20(06): 622-630.
阅读次数
全文


摘要