BOLD MRI评价糖尿病患者尿微量白蛋白及氧合水平的研究

doi:10.3969/j.issn.1006-7795.2021.01.021

首都医科大学学报 ›› 2021, Vol. 42 ›› Issue (1): 125-130.doi: 10.3969/j.issn.1006-7795.2021.01.021

BOLD MRI评价糖尿病患者尿微量白蛋白及氧合水平的研究

郑爽爽^1,2, 高志远², 宋双双^1,3, 何悦明², 卢洁^1,3,4*

1.首都医科大学宣武医院放射科,北京 100053;
2.首都医科大学附属复兴医院放射科,北京 100038;
3.首都医科大学宣武医院核医学科,北京 100053;
4.磁共振成像脑信息学北京市重点实验室,北京 100053

收稿日期:2020-02-27 出版日期:2021-02-21 发布日期:2021-02-02
基金资助:
北京市医院管理局“登峰”计划专项经费资助(DFL20180802)

Assessment of urinary microalbumin and oxygenation in diabetic patients using blood oxygenation level-dependent MRI

Zheng Shuangshuang^1,2, Gao Zhiyuan², Song Shuangshuang^1,3, He Yueming², Lu Jie^1,3,4*

1. Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China;
2. Department of Radiology, Fuxing Hospital, Capital Medical University, Beijing 100038, China;
3. Department of Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China;
4. Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing 100053,China

Received:2020-02-27 Online:2021-02-21 Published:2021-02-02
Contact: ^*E-mail:imaginglu@hotmail.com
Supported by:
Beijing Municipal Administration of Hospitals Ascent Plan(DFL20180802).

摘要/Abstract

摘要： 目的利用血氧水平依赖磁共振成像(blood oxygenation level dependent magnetic resonance imaging,BOLD MRI)技术探讨2型糖尿病患者不同尿微量白蛋白与肌酐比值(the ratio of urinary albumin and creatinine,ACR)与肾脏氧合状态的关系。方法对44例2型糖尿病患者及14例健康志愿者(对照组)行肾脏BOLD MRI检查,糖尿病患者根据ACR分为ACR正常糖尿病组(22例)、早期糖尿病肾病组(10例)、临床糖尿病肾病组(12例),分别测量肾脏皮质、髓质的表观自旋-自旋弛豫率(apparent relaxation rate,R2^*)值并进行组间比较及分析其与临床指标的相关性。结果相比正常对照组,ACR正常糖尿病组(P=0.015)、临床糖尿病肾病组(P=0.023)的肾脏髓质R2^*值明显增加,差异有统计学意义;早期糖尿病肾病组较对照组的肾脏髓质R2^*值升高,但差异无统计学意义;糖尿病各组较对照组的肾脏皮质R2^*值升高,但差异无统计学意义。ACR与髓质R2^*值呈正相关(r=0.409,P=0.006)。结论 BOLD MRI可无创评估糖尿病患者ACR不同阶段的肾脏氧合水平,监测糖尿病患者早期肾髓质功能性缺氧改变。

关键词: 2型糖尿病, 肾脏, 血氧水平依赖, 磁共振成像

Abstract: Objective To explore the relationship between the ratio of urine albumin to creatinine(ACR) and renal oxygenation in patients with type 2 diabetes by blood oxygen level-dependent magnetic resonance imaging(BOLD MRI). Methods Totally 44 patients with type 2 diabetes and 14 healthy volunteers were recruited. Diabetic patients were divided into ACR normal diabetic group, early diabetic nephropathy group and clinical diabetic nephropathy group based on ACR. Bilateral renal cortical R2^*(CR2^*) and medullary R2^*(MR2^*) values were extracted and quantified on BOLD MRI. CR2^* and MR2^* were compared among the groups separately. The relationships were analyzed between R2^* values and clinical index of renal function. Results Compared with controls, MR2^* in ACR normal diabetic group(P=0.015) and clinical diabetic nephropathy group(P=0.023) were significantly increased. MR2^* in the early diabetic nephropathy group was higher than that in normal control group, but the difference was not statistically significant. CR2^* in each diabetes group was higher than that in the normal control group, but there was no statistical difference. The positive correlation was found between MR2^* and ACR(r=0.409, P=0.006). Conclusion BOLD MRI could non-invasively evaluate the renal oxygenation level in different stages of ACR in diabetic patients and monitor functional hypoxia changes in renal medulla in early diabetic patients.

Key words: type 2 diabetes, kidney, blood oxygen level dependent, magnetic resonance imaging

中图分类号:

郑爽爽, 高志远, 宋双双, 何悦明, 卢洁. BOLD MRI评价糖尿病患者尿微量白蛋白及氧合水平的研究[J]. 首都医科大学学报, 2021, 42(1): 125-130.

Zheng Shuangshuang, Gao Zhiyuan, Song Shuangshuang, He Yueming, Lu Jie. Assessment of urinary microalbumin and oxygenation in diabetic patients using blood oxygenation level-dependent MRI[J]. Journal of Capital Medical University, 2021, 42(1): 125-130.

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BOLD MRI评价糖尿病患者尿微量白蛋白及氧合水平的研究

Assessment of urinary microalbumin and oxygenation in diabetic patients using blood oxygenation level-dependent MRI

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