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Clinical Trial Summary

Gliomas are the most common primary brain tumor. Gliomas with different grades have different clinical behaviors that determine treatment planning and patient prognosis in clinical practice. In the 2021 World Health Organization (WHO) classification of tumors for the central nervous system, glioma genotyping was considered the most relevant information for neuroradiologists. The isocitrate dehydrogenase (IDH) genotype and 1p/19q codeletion status are two essential molecular markers that divide glioma into three groups: IDH wild-type, IDH mutant with 1p/19q non-codeletion, and IDH mutant with 1p/19q codeletion. MRI contrast clearance analysis (CCA) is based on T1 delayed-contrast subtraction map, Blue/tumor regions in CCA represent efficient clearance of contrast from the tissue (delayed signal<early signal), while red/nontumor regions in CCA represent contrast accumulation (delayed signal>early signal). However, there are not any reports on the role of MRI CCA in glioma grading and genotyping, Thus, We hypothesized that the proportion of blue/red region and their histogram analyses, which could be acquired for predicting IDH genotypes and 1p/19q codeletion in gliomas, and to assess the application of CCA in glioma grading.


Clinical Trial Description

This is a single-center bidirectional cohort study. The subjects of this study were patients diagnosed as glioma by pathological biopsy. Patients with suspicious mass will be performed extra 30 and 60 min after contrast agent application delayed T1-weighted sequences as same as before. Then enter the next experimental stage. (1) Image format conversion; (2) Registration;(3) Subtraction;(4) ROI segmentation;(5) ROI histogram analyses. Histogram parameters of blue and red ROI includes 1st、10th 、90th and 99th percentiles, mean, median, variance, skewness, and kurtosis. Finally, statistical methods were used to determine whether those parameters was statistically significant for IDH mutation status、1p/19q codeletion status and tumor grading. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06018870
Study type Observational
Source Daping Hospital and the Research Institute of Surgery of the Third Military Medical University
Contact Zifan Sang, M.M
Phone +8618379873389
Email 952034224@qq.com
Status Recruiting
Phase
Start date June 1, 2023
Completion date June 30, 2024

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