应用表观扩散系数评价颅内脑膜瘤一致性的术前预测

IF 0.3 Q4 SURGERY
Venkatesh Pothula, Ajay Kumar, Sameer Vyas, V. Bhatia, B. Radotra, S. Gupta
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引用次数: 0

摘要

目的脑膜瘤的一致性对术前计划、手术切除和预测手术结果具有重要意义。我们前瞻性地评估表观扩散系数(ADC)值在评估脑膜瘤一致性方面的效用。方法对23例脑膜瘤患者行术前磁共振成像(MRI)检查,计算ADC最小值(ADCmin)、最大值(ADCmax)和平均值(ADCmean)的平均值/平均值。术中脑膜瘤表现为硬或软,与ADC值相关。结果软质脑膜瘤和硬质脑膜瘤的ADCmin、ADCmax、ADCmean差异有统计学意义,p值均< 0.05。ADCmin值< 691.3 × 10−6 mm2/s对软质瘤的鉴别灵敏度为80%,特异度为84.6%,曲线下面积(AUC) = 0.862, p值为0.004,阳性预测值(PPV)为80,阴性预测值(NPV)为84.6。ADCmax值< 933.6 × 10−6 mm2/s对软质瘤的鉴别灵敏度为70%,特异度为84.6%,AUC = 0.823, p值为0.009,PPV为77.8,NPV为78.6。adc均值< 840.8 × 10−6 mm2/s,对软质瘤的鉴别灵敏度为90%,特异性为76.9%,AUC = 0.900, p值为0.001,PPV为75,NPV为90.9。结论弥散加权MRI ADC最小值、ADC最大值和ADC平均值可用于硬性脑膜瘤和软性脑膜瘤的鉴别。硬一致性脑膜瘤ADC值相对较低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Preoperative Assessment and Prediction of Consistency of Intracranial Meningioma Utilizing the Apparent Diffusion Coefficient Values
Objectives Consistency of meningioma is important for preoperative planning, surgical resection, and predicting surgical outcomes. We prospectively evaluated the utility of the apparent diffusion coefficient (ADC) values to assess the consistency of meningioma. Methods Preoperative magnetic resonance imaging (MRI) was performed on 23 patients with meningioma before undergoing surgical resection and the average/mean of ADC minimum (ADCmin), maximum (ADCmax), and mean (ADCmean) values were calculated. Intraoperatively, the meningiomas were characterized as firm or soft and correlated with ADC values. Results ADCmin, ADCmax, and ADCmean values of soft and firm meningiomas were significantly different with a p-value of < 0.05. ADCmin value of < 691.3 × 10−6 mm2/s had 80% sensitivity and 84.6% specificity for identifying firm from the soft tumors with the area under the curve (AUC) = 0.862, p-value of 0.004, positive predictive value (PPV) 80, and negative predictive value (NPV) 84.6. ADCmax value of < 933.6 × 10−6 mm2/s had 70% sensitivity and 84.6% specificity for identifying firm from the soft tumors with AUC = 0.823, p-value of 0.009, PPV 77.8, and NPV 78.6. ADCmean value of < 840.8 × 10−6 mm2/s had 90% sensitivity and 76.9% specificity for identifying firm from the soft tumors with AUC = 0.900, p-value of 0.001, PPV 75, and NPV 90.9. Conclusion Diffusion-weighted MRI using ADC minimum, ADC maximum, and ADC mean values can be used to differentiate firm from soft meningiomas. Meningiomas with hard consistency showed relatively low ADC values.
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来源期刊
CiteScore
0.40
自引率
0.00%
发文量
52
审稿时长
12 weeks
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