磁共振MRS、DWI及SWI序列在脑胶质瘤分级诊断中的应用价值

李欣; 谢继承; 王静; 庞坚信; 吴玲; 季文斌

doi:10.16766/j.cnki.issn.1674-4152.002644

磁共振MRS、DWI及SWI序列在脑胶质瘤分级诊断中的应用价值

doi: 10.16766/j.cnki.issn.1674-4152.002644

李欣¹,
谢继承¹,
王静²,
庞坚信¹,
吴玲¹,
季文斌^1, ,

1.
浙江省台州医院放射科，浙江临海 317000
2.
复旦大学附属华山医院放射科，上海 200040

基金项目:

国家自然科学基金项目 82102114

浙江省医药卫生科技计划项目 2019KY777

台州市科技计划项目 1902KY30

详细信息

通讯作者:
季文斌, E-mail: jiwb@enzemed.com

中图分类号: R739.4 R445.2
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- 文章访问数: 263
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- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2020-05-06
- 网络出版日期: 2022-11-29

The application value of magnetic resonance MRS, DWI and SWI sequences in the grading diagnosis of glioma

1.
Department of Radiology, Taizhou Hospital of Zhejiang Province, Linhai, Zhejiang 317000, China
2.
Department of Radiology, Taizhou Hospital of Zhejiang Province, Linhai, Zhejiang 317000, China

摘要

摘要: 目的探讨氢质子磁共振波谱分析(¹H-MRS)、扩散加权成像(DWI)及磁敏感加权成像(SWI)在胶质瘤分级诊断中的应用价值。方法收集2016年12月—2020年3月浙江省台州医院经手术或活检病理证实的胶质瘤患者共76例，按照2016版WHO中枢神经系统肿瘤分类标准，将所有病例分为低级别组(Ⅰ~Ⅱ级，31例)和高级别组(Ⅲ~Ⅳ级，45例)。原始数据利用GE ADW 4.5工作站Functool软件处理，分别选取磁共振波谱(MRS)、DWI及SWI软件，测量肿瘤实质区MRS主要代谢物(胆碱、肌酸、氮-乙酰天门冬氨酸)并测算出比值、表观扩散系数(ADC)及肿瘤磁敏感信号强度(ITSS)，并采用Mann-Whitney U检验对2组结果进行统计分析。结果低级别脑胶质瘤组Cho/NAA中位数为1.780，Cho/Cr中位数为1.920，NAA/Cr中位数为0.930，ADC值中位数为1.730×10^-3mm²/s，ITSS评分中位数为1.0。高级别脑胶质瘤组Cho/NAA中位数为4.390，Cho/Cr中位数为3.560，NAA/Cr中位数为0.780，ADC值中位数为1.030×10^-3mm²/s，ITSS评分中位数为2.0。2组Cho/NAA、Cho/Cr、NAA/Cr、ADC值及ITSS评分比较差异均有统计学意义(均P < 0.001)。结论 MR多模态成像(MRS、DWI及SWI)在胶质瘤分级诊断中有重要的应用价值。
- 质子磁共振波谱分析 /
- 弥散加权成像 /
- 表观弥散系数 /
- 磁敏感加权成像 /
- 磁敏感信号强度 /
- 胶质瘤
Abstract: Objective To investigate the application value of ¹H-magnetic resonance spectroscopy (¹H-MRS), diffusion weighted imaging (DWI) and susceptibility weighted imaging (SWI) in the grading diagnosis of glioma. Methods Seventy-six cases of glioma confirmed by surgery or biopsy in our hospital were collected. According to the 2016 Edition of the WHO classification standard of the central nervous system tumors, the cases were divided into low-level group of glioma (Ⅰ-Ⅱ, 31 cases) and the high-level group of glioma (Ⅲ-Ⅳ, 45 cases). The original data were processed with the Functool software of GE ADW 4.5 workstation. MRS, DWI and SWI mapping software were selected to measure the main metabolites including choline (CHO), creatine (CR) and N-acetylaspartate (NAA) in the tumor parenchymal area of MRS and calculated the ratio, apparent diffusion coefficient (ADC) and intertumoral susceptibility signal (ITSS). Statistical analysis was performed on the results of the two groups with Mann-Whitney U Test. Results In the low-grade glioma group and high-grade glioma group, the Cho/NAA ratios were 1.780 and 4.390, the Cho/Cr ratios were 1.920 and 3.560, and the NAA/Cr ratios were 0.930 and 0.780, respectively. ADC values were 1.730 ×10^-3mm²/s and 1.030×10^-3mm²/s, ITSS scores were 1.0 and 2.0, respectively. The differences of Cho/NAA, Cho/Cr, NAA/Cr, ADC and ITSS scores were statistically significant between two groups (all P < 0.001). Conclusion MR multimodal imagings (MRS, DWI and SWI) show important application value in the grading diagnosis of glioma.
- Proton magnetic resonance spectroscopy /
- Diffusion weighted imaging /
- Apparent diffusion coefficient /
- Susceptibility weighted imaging /
- Intratumoral susceptibility signal intensity /
- Glioma

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图 1 高级别胶质瘤SWI、ADC、MRS图

注：男性，58岁，左侧枕叶胶质母细胞瘤Ⅳ级。A为SWI序列，B为ADC图，C、D为MRS序列。SWI序列病灶内多发点条状低信号，肿瘤实质ADC值约为1.09×10^-3mm²/s，MRS重点监测肿瘤实质与瘤周水肿各项峰值的变化，显示肿瘤实质Cho峰明显升高、Cr峰稍升高，NAA峰明显降低，并可见稍高双“L”峰。

Figure 1. SWI, ADC, and MRS Images of high-grade gliomas

下载: 全尺寸图片幻灯片

图 2 低级别胶质瘤SWI、ADC、MRS图

注：男性，39岁，右侧额叶弥漫性星形细胞瘤Ⅱ级。A为SWI序列，B为ADC图，C为MRS序列。SWI序列右侧额叶病灶内似见点状、短条状低信号影，肿瘤实质ADC值约为1.91×10^-3mm²/s，MRS重点监测肿瘤实质与对照区各项峰值的变化。

Figure 2. SWI, ADC, and MRS Maps of low-grade gliomas

下载: 全尺寸图片幻灯片

表 1 低、高级别组胶质瘤实质部分ADC值及ITSS评分比较[M(P₂₅, P₇₅)]

Table 1. Comparison of ADC values and ITSS scores in parenchyma of low and high grade gliomas [M(P₂₅, P₇₅)]

组别	例数	ADC值(×10^-3mm²/s)	ITSS评分(分)
低级别组	31	1.730(1.630，1.770)	1.0(0，1.0)
高级别组	45	1.030(0.935，1.135)	2.0(2.0，2.0)
Z值		-7.064	-7.697
P值		＜0.001	＜0.001

下载: 导出CSV

表 2 低、高级别组胶质瘤实质部分各主要代谢物值比较[M(P₂₅, P₇₅)]

Table 2. Comparison of main metabolites in parenchyma of glioma between low and high grade groups [M(P₂₅, P₇₅)]

组别	例数	Cho/NAA	Cho/Cr	NAA/Cr
低级别组	31	1.780(1.470，2.270)	1.920(1.710，2.310)	0.930(0.790，1.270)
高级别组	45	4.390(3.570，5.250)	3.560(2.840，4.215)	0.780(0.600，0.880)
Z值		-7.372	-6.934	-4.230
P值		＜0.001	＜0.001	＜0.001

下载: 导出CSV

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