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) ›› 2016, Vol. 13 ›› Issue (01) : 66 -72. doi: 10.3877/cma.j.issn.1672-6448.2016.01.016

所属专题: 文献

基础研究

不同感兴趣区选位对健康实验兔肾超声造影效果分析的影响
刘锐洪1, 孙彬录2, 何晶玲3, 袁桂忠3, 王莎莎3, 李叶阔3,()   
  1. 1. 528415 中山,广东医学院附属陈星海医院超声科
    2. 528100 佛山,解放军75752部队卫生队
    3. 510010 广州军区广州总医院超声科
  • 收稿日期:2015-05-25 出版日期:2016-01-01
  • 通信作者: 李叶阔
  • 基金资助:
    全军"十二五"医学科研基金(CWS12J076); 广东省科技计划项目(2014A020212255); 中山市科技计划项目(2015B1159)

Impact of the location of region of interest on the contrast enhanced ultrasound of rabbit kidney: an animal study

Ruihong Liu1, Binlu Sun2, Jingling He3, Guizhong Yuan3, Shasha Wang3, Yekuo Li3,()   

  1. 1. Department of Ultrasound, Chenxinghai Hospital Affiliated to Guangdong Medical College, Zhongshan 528415, China
    2. Medical Team of PLA Troop 75752, Foshan528100, China
    3. Department of Ultrasound, General Hospital of Guangzhou Military Command, Guangzhou 510010, China
  • Received:2015-05-25 Published:2016-01-01
  • Corresponding author: Yekuo Li
  • About author:
    Corresponding author: Li Yekuo, Email:
引用本文:

刘锐洪, 孙彬录, 何晶玲, 袁桂忠, 王莎莎, 李叶阔. 不同感兴趣区选位对健康实验兔肾超声造影效果分析的影响[J]. 中华医学超声杂志(电子版), 2016, 13(01): 66-72.

Ruihong Liu, Binlu Sun, Jingling He, Guizhong Yuan, Shasha Wang, Yekuo Li. Impact of the location of region of interest on the contrast enhanced ultrasound of rabbit kidney: an animal study[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2016, 13(01): 66-72.

目的

探讨不同感兴趣区(ROI)的选位对健康实验兔肾超声造影分析效果的影响,并分析其变化规律,探索其最佳ROI取样部位。

方法

采用GE LOGIQ-E9超声诊断仪,9L-D探头,频率6~9 MHz。用低机械指数实时谐波超声造影观察20只健康实验兔。使用TIC-Analysis(GE)软件包,选择直径3 mm圆形的ROI取样框,分别置于肾皮质外层、肾皮质深层、肾髓质、肾门部主肾动脉4个不同部位,进行肾脏血流灌注定量分析,测量超声造影灌注参数值到达时间(AT)、达峰时间(TTP)、峰值强度(PI)、曲线下面积(AUC)。分析左、右肾同一取样部位ROI定量结果,比较左、右肾血流灌注的差异。分析同侧肾脏不同取样部位ROI定量结果,比较肾内不同位置对定量结果的影响。采用组内相关系数(ICC)及Bland-Altman法分析ROI置于右肾皮质外层及深层2名观察者定量结果,比较2个ROI取样部位在2名观察者间其测量一致性的优劣。

结果

所有健康实验兔均顺利完成超声造影检查,同一肾脏不同ROI取样部位所生成的时间-强度曲线(TIC)曲线形态相似。左、右肾同一ROI设置所测定量结果差异均无统计学意义(P值均>0.05)。右肾相同形态ROI取样框置于不同位置所测超声造影定量参数AT、TTP、PI、AUC差异有统计学意义(AT:F=5.61,P<0.05;TTP:F=4.28,P<0.05;PI:F=145.88,P<0.05;AUC: F=216.72,P<0.05)。行两两比较SNK-q检验,取样框置于肾皮质外层及肾皮质深层所测定量参数比较,PI差异有统计学意义(q=4.43,P<0.05);取样框置于肾皮质外层及肾髓质所测定量参数比较,PI及AUC差异有统计学意义(q=12.69,P<0.05;q=13.39,P<0.05);取样框置于肾皮质深层及肾髓质所测定量参数比较,PI及AUC差异有统计学意义(q=8.41,P<0.05;q=13.13,P<0.05)。取样框置于肾皮质外层及肾门部主肾动脉内所测定量参数比较,PI及AUC差异有统计学意义(q=-8.14,P<0.05;q=-11.67,P<0.05)。取样框置于肾皮质深层及肾门部主肾动脉内所测定量参数比较,PI及AUC差异有统计学意义(q=-12.25,P<0.05;q=-12.78,P<0.05)。取样框置于肾髓质及肾门部主肾动脉内所测定量参数比较,AT、TTP、PI及AUC差异有统计学意义(AT:q=3.91,P<0.05;TTP:q=3.00,P<0.05;PI:q=-19.58,P<0.05;AUC:q=27.12,P<0.05)。取样框置于右肾皮质外层时,2名医师测量PI的一致性非常好,ICC=0.978,95%可信区间为(0.946,0.991);使用Bland-Altman法分析,2名医师测量PI差值均值为0.42,95%可信区间为(-0.89,1.73)。ROI置于右肾皮质深层时,2名医师测量PI的一致性尚可,ICC=0.698,95%可信区间为(0.238,0.881);使用Bland-Altman法分析,2名医师测量PI差值均值为1.1,95%可信区间为(-3.3,5.5)。

结论

在超声造影定量分析过程中ROI取样框放置于不同部位可对定量分析结果产生影响。ROI取样框置于与声束垂直的右肾皮质外层是兔肾脏血流灌注定量分析较理想ROI设置,实验过程中需保持同一深度、位置,以保证定量分析结果具有较好的可比性和可重复性。

Objective

To study the relationship between different sampling site of region of interest (ROI) and effects of contrast-enhanced ultrasound (CEUS) in normal rabbit kidney and to investigate the optimal location of ROI.

Methods

CEUS was performed in twenty normal rabbits using GE LOGIQ E9 machine and a 6-9 MHz probe, after i.v. bolus injection of 1.0 ml/kg contrast agent (SonoVue?, Bracco, Italy). The qualitative analysis of the corresponding compartment was assessed using low mechanical index (MI) true agent detection contrast mode. Corresponding parameters of the time-intensity curve (TIC): arrival time (AT), time to peak (TTP), Peak intensity (PI) and area under the curve (AUC) were measured using time intensity curve analysis software package (GE). Quantification results of the same sampling site of ROI in the left and right kidney were compared and statistically analyzed. Quantification results of different sampling site of ROI in the right kidney were compared and statistically analyzed. Quantification results of the set of ROI in superficial and deep renal cortex which were measured by two different observers were analyzed by Bland-Altman analysis.

Results

CEUS was performed successfully in all of the rabbits. The TICs of different ROIs in one kidney had a similar trend. The TICs of the same ROI in left and right kidneys had no statistical significance (P>0.05). The corresponding parameters of different ROIs in right kidney had significant difference (AT: F=5.61, P<0.05; TTP: F=4.28, P<0.05; PI: F=145.88, P<0.05; AUC: F=216.72, P<0.05). SNK-q test was used for multiple comparisons. Superficial renal cortex vs deep renal cortex, PI had statistical significance (PI: q=4.43, P<0.05); superficial renal cortex vs renal medulla, PI and AUC had statistical significance (PI: q= 12.69, P<0.05; AUC: q=13.39, P<0.05); deep renal cortex vs renal medulla, PI and AUC had statistical significance (PI: q= 8.41, P<0.05; AUC: q=13.13, P<0.05); superficial renal cortex vs renal hilus, PI and AUC had statistical significance (PI: q=-8.14, P<0.05; AUC: q=-11.67, P<0.05); deep renal cortex vs renal hilus, PI and AUC had statistical significance (PI: q=-12.25, P<0.05; AUC: q=-12.78, P<0.05); renal medulla vs renal hilus, AT, TTP, PI and AUC had statistical significance (AT: q=3.91, P<0.05; TTP: q=3.00, P<0.05; PI: q=-19.58, P<0.05; AUC: q=27.12, P<0.05). For the ROI in superficial renal cortex in right kidney, the ICC for PI measured by 2 observers was 0.987 (95%CI: 0.946 to 0.991), indicating a very strong agreement. Bland-Altman pot showed that the mean difference of PI measured by 2 observers was 0.42 (95%CI: -0.89 to 1.73). For the ROI in deep renal cortex in right kidney, the ICC for PI measured by 2 observers was 0.698 (95%CI: 0.238 to 0.881), indicating a common agreement. Bland-Altman pot showed that the mean difference of PI measured by 2 observers was 1.1 ( 95%CI: -3.3 to 5.5).

Conclusion

Different sampling site of ROIs can affect the results of quantitative analysis. It is important to realize the relationship between the sampling site of ROI and contrast-enhancement effects in microcirculatory quantification. The superficial renal cortex appears to be the optimal location of ROI for tissue perfusion studying in healthy rabbit kidney.

图1 实验兔肾超声造影各期增强特征图
图2 同一兔肾脏相同形态感兴趣区(ROI)置于不同位置所生成的曲线图
表1 20只健康实验兔左、右肾ROI_1所测AT、TTP、PI、AUC值(±s
表2 健康实验兔右肾不同感兴趣区设置所测AT、TTP、PI、AUC值(±s
图3 2位医师感兴趣区设置为肾皮质外层(图a)或肾皮质深层(图b)测量兔肾皮质超声造影峰值强度Bland-Altman分析图
[1]
Wilson SR, Burns PN. Microbubble-enhanced US in body imaging what role [J]. Radiology, 2010, 257(1): 24-39.
[2]
Geis S, Gehmert S, Lamby P, et al. Contrast enhanced ultrasound (CEUS) and time intensity curve (TIC) analysis in compartment syndrome: first results [J]. Clin Hemorheol Microcirc, 2012, 50(1-2): 1-11.
[3]
刘锐洪, 李叶阔, 孙彬录, 等. SonoVue剂量与健康实验兔肾超声造影效果关系的实验研究[J]. 中国医学影像学杂志, 2015, 23(6): 401-404.
[4]
董怡, 王文平. 肾脏病变血流灌注超声造影定量分析研究进展[J]. 复旦学报(医学版), 2008, 35(5): 775-778.
[5]
郭万学. 超声医学[M]. 6版. 北京: 人民军医出版社, 2014: 80-81.
[6]
Greis C. Quantitative evaluation of microvascular blood flow by contrast-enhanced ultrasound (CEUS) [J]. Clin Hemorheol Microcirc, 2011, 49(1-4): 137-149.
[7]
Tang MX, Mulvana H, Gauthier T, et al. Quantitative contrast-enhanced ultrasound imaging: a review of sources of variability [J]. Interface Focus, 2011, 1(4): 520-539.
[8]
Ansarin K, Bavil AS, Ghabili K, et al. Are Doppler ultrasonography parameters symmetric between the right and left kidney? [J]. Int J Gen Med, 2010, 3: 371-373.
[9]
Yildirim H, Gungor S, Cihangiroglu MM, et al. Doppler studies in normal kidneys of preterm and term neonates: Changes in relation to gestational age and birth weight [J]. J Ultrasound Med, 2005, 24(5): 623-627.
[10]
Milovanceva-Popovska M, Dzikova S. Doppler ultrasonography: Doppler ultrasonography: a tool for nephrologists--single centre experience [J]. Prilozi, 2008, 29(1): 107-128.
[11]
温宝杰, 曹军英, 张筠, 等. 超声造影评价低温条件下兔肾皮质血流灌注变化[J]. 中华超声影像学杂志, 2012, 21(9): 807-810.
[12]
Ma F, Cang Y, Zhao B, et al. Contrast-enhanced ultrasound with SonoVue could accurately assess the renal microvascular perfusion in diabetic kidney damage [J]. Nephrol Dial Transplant, 2012, 27(7): 2891-2898.
[13]
余红梅, 罗艳虹, 萨建, 等. 组内相关系数及其软件实现[J]. 中国卫生统计, 2011, 28(5): 497-500.
[14]
萨建, 刘桂芬. 定量测量结果的一致性评价及Bland-Altman法的应用[J]. 中国卫生统计, 2011, 28(4): 409-411、413.
[1] 魏淑婕, 惠品晶, 丁亚芳, 张白, 颜燕红, 周鹏, 黄亚波. 单侧颈内动脉闭塞患者行颞浅动脉-大脑中动脉搭桥术的脑血流动力学评估[J]. 中华医学超声杂志(电子版), 2023, 20(10): 1046-1055.
[2] 张璇, 马宇童, 苗玉倩, 张云, 吴士文, 党晓楚, 陈颖颖, 钟兆明, 王雪娟, 胡淼, 孙岩峰, 马秀珠, 吕发勤, 寇海燕. 超声对Duchenne肌营养不良儿童膈肌功能的评价[J]. 中华医学超声杂志(电子版), 2023, 20(10): 1068-1073.
[3] 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.
[4] 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.
[5] 张梅芳, 谭莹, 朱巧珍, 温昕, 袁鹰, 秦越, 郭洪波, 侯伶秀, 黄文兰, 彭桂艳, 李胜利. 早孕期胎儿头臀长正中矢状切面超声图像的人工智能质控研究[J]. 中华医学超声杂志(电子版), 2023, 20(09): 945-950.
[6] 陈舜, 薛恩生, 叶琴. PDCA在持续改进超声危急值管理制度中的价值[J]. 中华医学超声杂志(电子版), 2023, 20(09): 974-978.
[7] 周钰菡, 肖欢, 唐毅, 杨春江, 周娟, 朱丽容, 徐娟, 牟芳婷. 超声对儿童髋关节暂时性滑膜炎的诊断价值[J]. 中华医学超声杂志(电子版), 2023, 20(08): 795-800.
[8] 刘欢颜, 华扬, 贾凌云, 赵新宇, 刘蓓蓓. 颈内动脉闭塞病变管腔结构和血流动力学特征分析[J]. 中华医学超声杂志(电子版), 2023, 20(08): 809-815.
[9] 郏亚平, 曾书娥. 含鳞状细胞癌成分的乳腺化生性癌的超声与病理特征分析[J]. 中华医学超声杂志(电子版), 2023, 20(08): 844-848.
[10] 张丽丽, 陈莉, 余美琴, 聂小艳, 王婧玲, 刘婷. PDCA循环法在超声浅表器官亚专科建设中的应用[J]. 中华医学超声杂志(电子版), 2023, 20(07): 717-721.
[11] 吴萌, 吴国仲, 王贵红, 端靓靓, 施杰, 王旭, 余婷, 刘伟. IgA肾病患者中性粒细胞-淋巴细胞比值与肾小管萎缩/间质纤维化相关性分析[J]. 中华临床医师杂志(电子版), 2023, 17(9): 972-979.
[12] 李静静, 翟蕾, 赵海平, 郑波. 多囊肾合并囊肿的多重耐药菌感染一例并文献复习[J]. 中华临床医师杂志(电子版), 2023, 17(08): 920-923.
[13] 易成, 韦伟, 赵宇亮. 急性肾脏病的概念沿革[J]. 中华临床医师杂志(电子版), 2023, 17(08): 906-910.
[14] 张曦才, 曹先德. 经皮肾镜取石术治疗无积水肾结石中皮肾通道建立的应用研究进展[J]. 中华临床医师杂志(电子版), 2023, 17(08): 911-915.
[15] 张曦才, 曹先德, 高建萍, 沈大庆, 曹现祥, 郭诗杰, 李凤岳, 肖琳. 免人工肾积水在超声引导经皮肾镜取石术中的应用[J]. 中华临床医师杂志(电子版), 2023, 17(07): 798-803.
阅读次数
全文


摘要