The method is implemented on numerous axial slices of the flair MRI modality from MICCAI brain tumor segmentation (BRATS) challenge 2012 and 2015 training datasets. Performance is evaluated in the form of the Dice Similarity Coefficient (DSC), Sensitivity and Positive Predictive Value (PPV). ...
因此,基于特异性较低的传统影像学技术(如造影增强MRI等)的Macdonald 标准在GBM的临床诊断和疗效评估中将面临重大挑战。 图2.临床治疗过程常规影像监测挑战的示意图。(图源:Qi D, et al., Brain, 2022) 不同于Macdonald标准,RANO 标准通过液体衰减反转恢复(FLAIR) 或T2 加权图像,对非对比增强病灶、新病灶以及...
Native pre-contrast (T1), post-contrast T1-weighted (T1c), T2-weighted (T2), and T2 Fluid Attenuated Inversion Recovery (FLAIR) 健康组织healthy tissue, Gd增强肿瘤(Gd-enhancing tumor (ET)), 瘤周水肿(peritumoral edema (ED)), the necrotic and non-enhancingtumor core (NCR/NET)坏死和非增强...
MRI T1加权相:低信号 T2加权相:等高信号 FLAIR:更好的展示肿瘤和脑脊液;瘤周水肿较轻 T1W1增强加权相:虽然肿瘤分型较多,但大部分均表现为不均匀强化并可观察到脑脊液播散 DWI:DWI亮、ADC暗弥散受限 磁共振波谱:Cho峰升高,NAA峰降低,可有乳酸峰出现
HDC-Net: Hierarchical Decoupled Convolution Network for Brain Tumor Segmentation Zhengrong Luo† , Zhongdao Jia† , Zhimin Yuan, and Jialin Peng∗ 摘要:—从磁共振图像(MRI)准确分割脑肿瘤对于临床治疗决策和手术计划至关重要。由于肿瘤的多样性和子区域之间复杂的边界相互作用,这是一个巨大的挑战。除了...
Brain tumor localization and segmentation from magnetic resonance imaging (MRI) are hard and important tasks for several applications in the field of medical analysis. As each brain imaging modality gives unique and key details related to each part of th
This dataset, from the 2015 challenge, contains data and expert annotations on four types of MRI images: T1 T1c T2 FLAIR Original Article B. H. Menze et al., "The Multimodal Brain Tumor Image Segmentation Benchmark (BRATS)," in IEEE Transactions on Medical Imaging, vol. 34, no. 10, ...
不同于Macdonald标准,RANO标准通过液体衰减反转恢复(FLAIR)或T2加权图像,对非对比增强病灶、新病灶以及患者治疗后出现的上述非特异性的影像学反应进行评估,并为高度恶性的神经胶质瘤的疗效给予详实的建议[7]。最近版RANO (modified RANO, mR...
MRBrainS评估框架的目的是比较脑部多序列(T1加权,T1加权反转恢复,磁共振成像液体衰减反转恢复序列,FLAIR)3T MRI图像,灰质,白质,脑脊髓液的分割算法。训练集包括5个手动分割的脑部MRI图像,测试集包括15份MRI图像。数据可以从http://mrbrains13.isi.uu.nl下载。该数据集当前获胜者算法的性能(DSC)为:灰质86.15%,脑白...
Fluid-attenuated inversion recovery (FLAIR) MRI has emerged as an important sequence for the analysis of cerebrovascular (CVD) and Alzheimer's disease (AD)... J Digregorio,A Gibicar,H Khosravani,... - 《Neuroimage Reports》 被引量: 0发表: 2022年 Automated brain tumor detection of MRI imag...