Apparent diffusion coefficients in evaluation of pediatric brain tumors
Background: MRI, which has high sensitivity in brain tumor detection, cannot reliably determine tumor grading or histology. Diffusion-weighted imaging and apparent diffusion coefficients (ADCs) provide information of tumor cellularity that can correlate with grading. Objective: To investigate ADCs i...
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th-mahidol.325342018-10-19T12:32:55Z Apparent diffusion coefficients in evaluation of pediatric brain tumors Lojana Tuntiyatorn Bordin Nantawas Nongnuch Sirsachainan Nopadol Larbcharoensub Anannit Visudtibhan Suradej Hongeng Mahidol University Medicine Background: MRI, which has high sensitivity in brain tumor detection, cannot reliably determine tumor grading or histology. Diffusion-weighted imaging and apparent diffusion coefficients (ADCs) provide information of tumor cellularity that can correlate with grading. Objective: To investigate ADCs in differentiation low-grade from high-grade pediatric brain tumors. Material and Method: Preoperative MRI, DWI, and ADC images of pediatric patients with pathologically proven brain tumors were retrospectively reviewed at a university hospital in two-year periods and classified into low-grade and high-grade categories. Regions of interest were placed manually at the center and periphery of the solid tumor regions, then ADC values were calculated at "b" values = 0, 1000 sec/mm2. Results: The ADC values were calculated in 15 patients, which included 12 males and three females with an age range from three to 14 years. Seven and eight were with low- and high-grade tumors respectively. The ADC values of low-grade tumors were markedly higher than those of high-grade tumors with statistically significant differences by all methods of measurements at the central, peripheral, and average areas on Man-Whitney U test, with p-values of 0.037, 0.009, and 0.021, respectively. Conclusion: MRI with ADCs for preoperative pediatric tumor evaluation may be useful for predicting tendency of tumor grading and surgical planning. 2018-10-19T05:32:55Z 2018-10-19T05:32:55Z 2013-02-01 Article Journal of the Medical Association of Thailand. Vol.96, No.2 (2013), 178-184 01252208 2-s2.0-84873929876 https://repository.li.mahidol.ac.th/handle/123456789/32534 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84873929876&origin=inward |
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Medicine Lojana Tuntiyatorn Bordin Nantawas Nongnuch Sirsachainan Nopadol Larbcharoensub Anannit Visudtibhan Suradej Hongeng Apparent diffusion coefficients in evaluation of pediatric brain tumors |
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Background: MRI, which has high sensitivity in brain tumor detection, cannot reliably determine tumor grading or histology. Diffusion-weighted imaging and apparent diffusion coefficients (ADCs) provide information of tumor cellularity that can correlate with grading. Objective: To investigate ADCs in differentiation low-grade from high-grade pediatric brain tumors. Material and Method: Preoperative MRI, DWI, and ADC images of pediatric patients with pathologically proven brain tumors were retrospectively reviewed at a university hospital in two-year periods and classified into low-grade and high-grade categories. Regions of interest were placed manually at the center and periphery of the solid tumor regions, then ADC values were calculated at "b" values = 0, 1000 sec/mm2. Results: The ADC values were calculated in 15 patients, which included 12 males and three females with an age range from three to 14 years. Seven and eight were with low- and high-grade tumors respectively. The ADC values of low-grade tumors were markedly higher than those of high-grade tumors with statistically significant differences by all methods of measurements at the central, peripheral, and average areas on Man-Whitney U test, with p-values of 0.037, 0.009, and 0.021, respectively. Conclusion: MRI with ADCs for preoperative pediatric tumor evaluation may be useful for predicting tendency of tumor grading and surgical planning. |
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Mahidol University |
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Mahidol University Lojana Tuntiyatorn Bordin Nantawas Nongnuch Sirsachainan Nopadol Larbcharoensub Anannit Visudtibhan Suradej Hongeng |
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Lojana Tuntiyatorn Bordin Nantawas Nongnuch Sirsachainan Nopadol Larbcharoensub Anannit Visudtibhan Suradej Hongeng |
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Lojana Tuntiyatorn |
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Apparent diffusion coefficients in evaluation of pediatric brain tumors |
title_short |
Apparent diffusion coefficients in evaluation of pediatric brain tumors |
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Apparent diffusion coefficients in evaluation of pediatric brain tumors |
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Apparent diffusion coefficients in evaluation of pediatric brain tumors |
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Apparent diffusion coefficients in evaluation of pediatric brain tumors |
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apparent diffusion coefficients in evaluation of pediatric brain tumors |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/32534 |
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