In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI
Abstract In this prospective study, we compared the performance of readout segmentation of long variable echo trains of diffusion-weighted imaging (RESOLVE DWI) and diffusion kurtosis imaging (DKI) for the prediction of radiotherapy response in patients with nasopharyngeal carcinoma (NPC). Forty-one...
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2018
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oai:doaj.org-article:3ae7ba768afa4a309cbab3a4bc8463042021-12-02T15:08:06ZIn Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI10.1038/s41598-018-34072-92045-2322https://doaj.org/article/3ae7ba768afa4a309cbab3a4bc8463042018-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-34072-9https://doaj.org/toc/2045-2322Abstract In this prospective study, we compared the performance of readout segmentation of long variable echo trains of diffusion-weighted imaging (RESOLVE DWI) and diffusion kurtosis imaging (DKI) for the prediction of radiotherapy response in patients with nasopharyngeal carcinoma (NPC). Forty-one patients with NPC were evaluated. All patients underwent conventional MRI, RESOLVE DWI and DKI, before and after radiotherapy. All patients underwent conventional MRI every 3 months until 1 year after radiotherapy. The patients were divided into response group (RG; 36/41 patients) and no-response group (NRG; 5/41 patients) based on follow-up results. DKI (the mean of kurtosis coefficient, Kmean and the mean of diffusion coefficient, Dmean) and RESOLVE DWI (the minimum apparent diffusion coefficient, ADCmin) parameters were calculated. Parameter values at the pre-treatment period, post-treatment period, and the percentage change between these 2 periods were obtained. All parameters differed between the RG and NRG groups except for the pretreatment Dmean and ADCmin. Kmean-post was considered as an independent predictor of local control, with 87.5% sensitivity and 91.3% specificity (optimal threshold = 0.30, AUC: 0.924; 95% CI, 0.83–1.00). Kmean-post values of DKI have the potential to be used as imaging biomarkers for the early evaluation of treatment effects of radiotherapy on NPC.Wei-Yuan HuangMeng-Meng LiShao-Min LinFeng ChenKai YangXiao-Lei ZhuGang WuJian-Jun LiNature PortfolioarticleDiffusion Kurtosis Imaging (DKI)Nasopharyngeal Carcinoma (NPC)Predicts Radiation ResponseReadout SegmentationMinimum Apparent Diffusion CoefficientMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018) |
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Diffusion Kurtosis Imaging (DKI) Nasopharyngeal Carcinoma (NPC) Predicts Radiation Response Readout Segmentation Minimum Apparent Diffusion Coefficient Medicine R Science Q |
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Diffusion Kurtosis Imaging (DKI) Nasopharyngeal Carcinoma (NPC) Predicts Radiation Response Readout Segmentation Minimum Apparent Diffusion Coefficient Medicine R Science Q Wei-Yuan Huang Meng-Meng Li Shao-Min Lin Feng Chen Kai Yang Xiao-Lei Zhu Gang Wu Jian-Jun Li In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI |
description |
Abstract In this prospective study, we compared the performance of readout segmentation of long variable echo trains of diffusion-weighted imaging (RESOLVE DWI) and diffusion kurtosis imaging (DKI) for the prediction of radiotherapy response in patients with nasopharyngeal carcinoma (NPC). Forty-one patients with NPC were evaluated. All patients underwent conventional MRI, RESOLVE DWI and DKI, before and after radiotherapy. All patients underwent conventional MRI every 3 months until 1 year after radiotherapy. The patients were divided into response group (RG; 36/41 patients) and no-response group (NRG; 5/41 patients) based on follow-up results. DKI (the mean of kurtosis coefficient, Kmean and the mean of diffusion coefficient, Dmean) and RESOLVE DWI (the minimum apparent diffusion coefficient, ADCmin) parameters were calculated. Parameter values at the pre-treatment period, post-treatment period, and the percentage change between these 2 periods were obtained. All parameters differed between the RG and NRG groups except for the pretreatment Dmean and ADCmin. Kmean-post was considered as an independent predictor of local control, with 87.5% sensitivity and 91.3% specificity (optimal threshold = 0.30, AUC: 0.924; 95% CI, 0.83–1.00). Kmean-post values of DKI have the potential to be used as imaging biomarkers for the early evaluation of treatment effects of radiotherapy on NPC. |
format |
article |
author |
Wei-Yuan Huang Meng-Meng Li Shao-Min Lin Feng Chen Kai Yang Xiao-Lei Zhu Gang Wu Jian-Jun Li |
author_facet |
Wei-Yuan Huang Meng-Meng Li Shao-Min Lin Feng Chen Kai Yang Xiao-Lei Zhu Gang Wu Jian-Jun Li |
author_sort |
Wei-Yuan Huang |
title |
In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI |
title_short |
In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI |
title_full |
In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI |
title_fullStr |
In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI |
title_full_unstemmed |
In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI |
title_sort |
in vivo imaging markers for prediction of radiotherapy response in patients with nasopharyngeal carcinoma: resolve dwi versus dki |
publisher |
Nature Portfolio |
publishDate |
2018 |
url |
https://doaj.org/article/3ae7ba768afa4a309cbab3a4bc846304 |
work_keys_str_mv |
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