Yuhao Yan, R. Adam Bayliss, Adam R. Burr, Andrew M. Baschnagel, Brett A. Morris, Florian Wiesinger, Jose de Arcos Rodriguez, Carri K. Glide-Hurst
{"title":"评价一种新的定量多参数磁共振序列用于放射治疗治疗反应评估。","authors":"Yuhao Yan, R. Adam Bayliss, Adam R. Burr, Andrew M. Baschnagel, Brett A. Morris, Florian Wiesinger, Jose de Arcos Rodriguez, Carri K. Glide-Hurst","doi":"10.1002/acm2.70274","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background</h3>\n \n <p>Multiparametric MRI has shown great promise to derive multiple quantitative imaging biomarkers for treatment response assessment.</p>\n </section>\n \n <section>\n \n <h3> Purpose</h3>\n \n <p>To evaluate a novel deep-learning-enhanced MUlti-PArametric MR sequence (DL-MUPA) for treatment response assessment for brain metastases patients treated with stereotactic radiosurgery (SRS) and head-and-neck (HN) cancer patients undergoing conventionally fractionation adaptive radiation therapy.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>DL-MUPA derives quantitative T1 and T2 relaxation time maps from a single 4–6-min scan denoised via DL method using least-squares dictionary fitting. Longitudinal phantom benchmarking was performed on a NIST-ISMRM phantom over 1 year. In patients, longitudinal DL-MUPA data were acquired on a 1.5T MR-simulator, including pretreatment (PreTx) and every ∼3 months after SRS (PostTx) in brain, and PreTx, mid-treatment and 3 months PostTx in HN. Delta analysis was performed calculating changes of mean T1 and T2 values within gross tumor volumes (GTVs), residual disease (RD, HN), parotids, and submandibular glands (HN) for treatment response assessment. Uninvolved normal tissues (normal appearing white matter in brain, masseter in HN) were evaluated for within-subject repeatability.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Phantom benchmarking revealed excellent inter-session repeatability (coefficient of variation < 0.9% for T1, < 6.6% for T2), suggesting reliability for longitudinal studies with systematic bias adjustment. Uninvolved normal tissue suggested acceptable within-subject repeatability in the brain |ΔT1<sub>mean</sub>| < 36 ms (4.9%), |ΔT2<sub>mean</sub>| < 2 ms (6.1%) and HN |ΔT1<sub>mean</sub>| < 69 ms (7.0%), |ΔT2<sub>mean</sub>| < 4 ms (17.8%) with few outliers. In brain, remarkable changes were noted in a resolved metastasis (4-month PostTx ΔT1<sub>mean </sub>= 155 ms (13.7%)) and necrotic settings (ΔT1<sub>mean </sub>= 214-502 ms (17.6-39.7%), ΔT2<sub>mean </sub>= 7-41 ms (8.7-41.4%), 6-month to 3-month PostTx). In HN, two base of tongue tumors exhibited T2 enhancement (PostTx GTV ΔT2<sub>mean </sub>> 7 ms (12.8%), RD ΔT2<sub>mean </sub>> 10 ms (18.1%)). A case with nodal disease resolved PostTx (GTV ΔT1<sub>mean </sub>= -541 ms (-39.5%), ΔT2<sub>mean </sub>= -24 ms (-32.7%), RD ΔT1<sub>mean </sub>= -400 ms (-29.2%), ΔT2<sub>mean </sub>= -25 ms (-35.3%)). Parotids (PostTx ΔT1<sub>mean </sub>> 82 ms (12.4%), ΔT2<sub>mean </sub>> 6 ms (13.4%)) and submandibular glands (PostTx ΔT1<sub>mean </sub>> 135 ms (14.6%), ΔT2<sub>mean </sub>> 17 ms (34.5%)) adjacent to gross disease exhibited enhancement while distant organs remained stable.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Preliminary results suggest promise of DL-MUPA for treatment response assessment and highlight potential endpoints for functional sparing.</p>\n </section>\n </div>","PeriodicalId":14989,"journal":{"name":"Journal of Applied Clinical Medical Physics","volume":"26 10","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12504055/pdf/","citationCount":"0","resultStr":"{\"title\":\"Evaluation of a novel quantitative multiparametric MR sequence for radiation therapy treatment response assessment\",\"authors\":\"Yuhao Yan, R. Adam Bayliss, Adam R. Burr, Andrew M. Baschnagel, Brett A. Morris, Florian Wiesinger, Jose de Arcos Rodriguez, Carri K. Glide-Hurst\",\"doi\":\"10.1002/acm2.70274\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Background</h3>\\n \\n <p>Multiparametric MRI has shown great promise to derive multiple quantitative imaging biomarkers for treatment response assessment.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Purpose</h3>\\n \\n <p>To evaluate a novel deep-learning-enhanced MUlti-PArametric MR sequence (DL-MUPA) for treatment response assessment for brain metastases patients treated with stereotactic radiosurgery (SRS) and head-and-neck (HN) cancer patients undergoing conventionally fractionation adaptive radiation therapy.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>DL-MUPA derives quantitative T1 and T2 relaxation time maps from a single 4–6-min scan denoised via DL method using least-squares dictionary fitting. Longitudinal phantom benchmarking was performed on a NIST-ISMRM phantom over 1 year. In patients, longitudinal DL-MUPA data were acquired on a 1.5T MR-simulator, including pretreatment (PreTx) and every ∼3 months after SRS (PostTx) in brain, and PreTx, mid-treatment and 3 months PostTx in HN. Delta analysis was performed calculating changes of mean T1 and T2 values within gross tumor volumes (GTVs), residual disease (RD, HN), parotids, and submandibular glands (HN) for treatment response assessment. Uninvolved normal tissues (normal appearing white matter in brain, masseter in HN) were evaluated for within-subject repeatability.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>Phantom benchmarking revealed excellent inter-session repeatability (coefficient of variation < 0.9% for T1, < 6.6% for T2), suggesting reliability for longitudinal studies with systematic bias adjustment. Uninvolved normal tissue suggested acceptable within-subject repeatability in the brain |ΔT1<sub>mean</sub>| < 36 ms (4.9%), |ΔT2<sub>mean</sub>| < 2 ms (6.1%) and HN |ΔT1<sub>mean</sub>| < 69 ms (7.0%), |ΔT2<sub>mean</sub>| < 4 ms (17.8%) with few outliers. In brain, remarkable changes were noted in a resolved metastasis (4-month PostTx ΔT1<sub>mean </sub>= 155 ms (13.7%)) and necrotic settings (ΔT1<sub>mean </sub>= 214-502 ms (17.6-39.7%), ΔT2<sub>mean </sub>= 7-41 ms (8.7-41.4%), 6-month to 3-month PostTx). In HN, two base of tongue tumors exhibited T2 enhancement (PostTx GTV ΔT2<sub>mean </sub>> 7 ms (12.8%), RD ΔT2<sub>mean </sub>> 10 ms (18.1%)). A case with nodal disease resolved PostTx (GTV ΔT1<sub>mean </sub>= -541 ms (-39.5%), ΔT2<sub>mean </sub>= -24 ms (-32.7%), RD ΔT1<sub>mean </sub>= -400 ms (-29.2%), ΔT2<sub>mean </sub>= -25 ms (-35.3%)). Parotids (PostTx ΔT1<sub>mean </sub>> 82 ms (12.4%), ΔT2<sub>mean </sub>> 6 ms (13.4%)) and submandibular glands (PostTx ΔT1<sub>mean </sub>> 135 ms (14.6%), ΔT2<sub>mean </sub>> 17 ms (34.5%)) adjacent to gross disease exhibited enhancement while distant organs remained stable.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusions</h3>\\n \\n <p>Preliminary results suggest promise of DL-MUPA for treatment response assessment and highlight potential endpoints for functional sparing.</p>\\n </section>\\n </div>\",\"PeriodicalId\":14989,\"journal\":{\"name\":\"Journal of Applied Clinical Medical Physics\",\"volume\":\"26 10\",\"pages\":\"\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2025-10-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12504055/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied Clinical Medical Physics\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://aapm.onlinelibrary.wiley.com/doi/10.1002/acm2.70274\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Clinical Medical Physics","FirstCategoryId":"3","ListUrlMain":"https://aapm.onlinelibrary.wiley.com/doi/10.1002/acm2.70274","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}
Evaluation of a novel quantitative multiparametric MR sequence for radiation therapy treatment response assessment
Background
Multiparametric MRI has shown great promise to derive multiple quantitative imaging biomarkers for treatment response assessment.
Purpose
To evaluate a novel deep-learning-enhanced MUlti-PArametric MR sequence (DL-MUPA) for treatment response assessment for brain metastases patients treated with stereotactic radiosurgery (SRS) and head-and-neck (HN) cancer patients undergoing conventionally fractionation adaptive radiation therapy.
Methods
DL-MUPA derives quantitative T1 and T2 relaxation time maps from a single 4–6-min scan denoised via DL method using least-squares dictionary fitting. Longitudinal phantom benchmarking was performed on a NIST-ISMRM phantom over 1 year. In patients, longitudinal DL-MUPA data were acquired on a 1.5T MR-simulator, including pretreatment (PreTx) and every ∼3 months after SRS (PostTx) in brain, and PreTx, mid-treatment and 3 months PostTx in HN. Delta analysis was performed calculating changes of mean T1 and T2 values within gross tumor volumes (GTVs), residual disease (RD, HN), parotids, and submandibular glands (HN) for treatment response assessment. Uninvolved normal tissues (normal appearing white matter in brain, masseter in HN) were evaluated for within-subject repeatability.
Results
Phantom benchmarking revealed excellent inter-session repeatability (coefficient of variation < 0.9% for T1, < 6.6% for T2), suggesting reliability for longitudinal studies with systematic bias adjustment. Uninvolved normal tissue suggested acceptable within-subject repeatability in the brain |ΔT1mean| < 36 ms (4.9%), |ΔT2mean| < 2 ms (6.1%) and HN |ΔT1mean| < 69 ms (7.0%), |ΔT2mean| < 4 ms (17.8%) with few outliers. In brain, remarkable changes were noted in a resolved metastasis (4-month PostTx ΔT1mean = 155 ms (13.7%)) and necrotic settings (ΔT1mean = 214-502 ms (17.6-39.7%), ΔT2mean = 7-41 ms (8.7-41.4%), 6-month to 3-month PostTx). In HN, two base of tongue tumors exhibited T2 enhancement (PostTx GTV ΔT2mean > 7 ms (12.8%), RD ΔT2mean > 10 ms (18.1%)). A case with nodal disease resolved PostTx (GTV ΔT1mean = -541 ms (-39.5%), ΔT2mean = -24 ms (-32.7%), RD ΔT1mean = -400 ms (-29.2%), ΔT2mean = -25 ms (-35.3%)). Parotids (PostTx ΔT1mean > 82 ms (12.4%), ΔT2mean > 6 ms (13.4%)) and submandibular glands (PostTx ΔT1mean > 135 ms (14.6%), ΔT2mean > 17 ms (34.5%)) adjacent to gross disease exhibited enhancement while distant organs remained stable.
Conclusions
Preliminary results suggest promise of DL-MUPA for treatment response assessment and highlight potential endpoints for functional sparing.
期刊介绍：
Journal of Applied Clinical Medical Physics is an international Open Access publication dedicated to clinical medical physics. JACMP welcomes original contributions dealing with all aspects of medical physics from scientists working in the clinical medical physics around the world. JACMP accepts only online submission.
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