Cerebral blood volume analysis in glioblastomas using dynamic susceptibility contrast-enhanced perfusion MRI: a comparison of manual and semiautomatic segmentation methods
| العنوان: | Cerebral blood volume analysis in glioblastomas using dynamic susceptibility contrast-enhanced perfusion MRI: a comparison of manual and semiautomatic segmentation methods |
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| المؤلفون: | Soo Chin Kim, Seung Hong Choi, Chul-Ho Sohn, Jeong A. Yeom, Chul-Kee Park, Seung Chai Jung, Hwaseon Shin, Inseon Ryoo, Sung Hye Park, Ji Hoon Kim, Tae Jin Yun, A. Leum Lee |
| المصدر: | PLoS ONE PLOS ONE(8): 8 PLoS ONE, Vol 8, Iss 8, p e69323 (2013) |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Male, Pathology, lcsh:Medicine, Contrast Media, Blood volume, Diagnostic Radiology, Contrast (vision), lcsh:Science, Neurological Tumors, media_common, Multidisciplinary, Blood Volume, medicine.diagnostic_test, Brain Neoplasms, Brain, Glioma, Middle Aged, Magnetic Resonance Imaging, Neurology, Oncology, Medicine, Female, Radiology, Perfusion, Dynamic susceptibility, Research Article, Adult, medicine.medical_specialty, media_common.quotation_subject, Neuroimaging, Young Adult, Diagnostic Medicine, medicine, Humans, Biology, Aged, Retrospective Studies, Semiautomatic segmentation, Reproducibility, business.industry, lcsh:R, Reproducibility of Results, Cancers and Neoplasms, Magnetic resonance imaging, Cerebral blood volume, lcsh:Q, business, Nuclear medicine, Glioblastoma, Glioblastoma Multiforme, Neuroscience |
| الوصف: | PURPOSE: To compare the reproducibilities of manual and semiautomatic segmentation method for the measurement of normalized cerebral blood volume (nCBV) using dynamic susceptibility contrast-enhanced (DSC) perfusion MR imaging in glioblastomas. MATERIALS AND METHODS: Twenty-two patients (11 male, 11 female; 27 tumors) with histologically confirmed glioblastoma (WHO grade IV) were examined with conventional MR imaging and DSC imaging at 3T before surgery or biopsy. Then nCBV (means and standard deviations) in each mass was measured using two DSC MR perfusion analysis methods including manual and semiautomatic segmentation method, in which contrast-enhanced (CE)-T1WI and T2WI were used as structural imaging. Intraobserver and interobserver reproducibility were assessed according to each perfusion analysis method or each structural imaging. Interclass correlation coefficient (ICC), Bland-Altman plot, and coefficient of variation (CV) were used to evaluate reproducibility. RESULTS: Intraobserver reproducibilities on CE-T1WI and T2WI were ICC of 0.74-0.89 and CV of 20.39-36.83% in manual segmentation method, and ICC of 0.95-0.99 and CV of 8.53-16.19% in semiautomatic segmentation method, repectively. Interobserver reproducibilites on CE-T1WI and T2WI were ICC of 0.86-0.94 and CV of 19.67-35.15% in manual segmentation method, and ICC of 0.74-1.0 and CV of 5.48-49.38% in semiautomatic segmentation method, respectively. Bland-Altman plots showed a good correlation with ICC or CV in each method. The semiautomatic segmentation method showed higher intraobserver and interobserver reproducibilities at CE-T1WI-based study than other methods. CONCLUSION: The best reproducibility was found using the semiautomatic segmentation method based on CE-T1WI for structural imaging in the measurement of the nCBV of glioblastomas. |
| تدمد: | 1932-6203 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ca67d5e61b12980d453a075d956def0 https://pubmed.ncbi.nlm.nih.gov/23950891 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....7ca67d5e61b12980d453a075d956def0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19326203 |
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