Di Ningning1, Pang Haopeng1, Dang Xuefei2, Cheng Wenna3, Ren Yan1, Wu Jingsong4, Yao Chengjun4, Yao Zhenwei1, Feng Xiaoyuan5. 1. Department of Radiology, Huashan Hospital Fudan University, Mid Urumqi Road, Shanghai, 200040, People's Republic of China. 2. Shang Hai Gamma Knife Hospital, Shanghai, People's Republic of China. 3. Department of Pharmacy, Binzhou Medical University Affiliated Hospital, Binzhou, People's Republic of China. 4. Department of Neurosurgery, Huashan Hospital Fudan University, Shanghai, People's Republic of China. 5. Department of Radiology, Huashan Hospital Fudan University, Mid Urumqi Road, Shanghai, 200040, People's Republic of China. xyfeng@shmu.edu.cn.
Abstract
INTRODUCTION: This study was designed to determine if cerebral blood flow (CBF) derived from arterial spin labeling (ASL) perfusion imaging could be used to quantitatively evaluate the microvascular density (MVD) of brain gliomas on a "point-to-point" basis by matching CBF areas and surgical biopsy sites as accurate as possible. METHODS: The study enrolled 47 patients with treatment-naive brain gliomas who underwent preoperative ASL, 3D T1-weighted imaging with gadolinium contrast enhancement (3D T1C+), and T2 fluid acquisition of inversion recovery (T2FLAIR) sequences before stereotactic surgery. We histologically quantified MVD from CD34-stained sections of stereotactic biopsies and co-registered biopsy locations with localized CBF measurements. The correlation between CBF and MVD was determined using Spearman's correlation coefficient. P ≤ .05 was considered statistically significant. RESULTS: Of the 47 patients enrolled in the study, 6 were excluded from the analysis because of brain shift or poor co-registration and localization of the biopsy site during surgery. Finally, 84 biopsies from 41 subjects were included in the analysis. CBF showed a statistically significant positive correlation with MVD (ρ = 0.567; P = .029). CONCLUSION: ASL can be a useful noninvasive perfusion MR method for quantitative evaluation of the MVD of brain gliomas.
INTRODUCTION: This study was designed to determine if cerebral blood flow (CBF) derived from arterial spin labeling (ASL) perfusion imaging could be used to quantitatively evaluate the microvascular density (MVD) of brain gliomas on a "point-to-point" basis by matching CBF areas and surgical biopsy sites as accurate as possible. METHODS: The study enrolled 47 patients with treatment-naive brain gliomas who underwent preoperative ASL, 3D T1-weighted imaging with gadolinium contrast enhancement (3D T1C+), and T2 fluid acquisition of inversion recovery (T2FLAIR) sequences before stereotactic surgery. We histologically quantified MVD from CD34-stained sections of stereotactic biopsies and co-registered biopsy locations with localized CBF measurements. The correlation between CBF and MVD was determined using Spearman's correlation coefficient. P ≤ .05 was considered statistically significant. RESULTS: Of the 47 patients enrolled in the study, 6 were excluded from the analysis because of brain shift or poor co-registration and localization of the biopsy site during surgery. Finally, 84 biopsies from 41 subjects were included in the analysis. CBF showed a statistically significant positive correlation with MVD (ρ = 0.567; P = .029). CONCLUSION: ASL can be a useful noninvasive perfusion MR method for quantitative evaluation of the MVD of brain gliomas.
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