Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition最新文献
Guan Wang, Yi Zhang, Shashank Sathyanarayana Hegde, Paul A Bottomley
Vessel wall MRI with intravascular (IV) detectors can produce superior local signal-to-noise ratios (SNR) and generate high-resolution T1, T2, and proton density (PD) maps that could be used to automatically classify atherosclerotic lesion stage. However, long acquisition times potentially limit multi-parametric mapping. Here, for the first time, spectroscopy with linear algebraic modeling (SLAM) is applied to yield accurate compartment-average T1, T2 and PD measures at least 10 times faster compared to a standard full k-space reconstructed MIX-TSE sequence at 3T. Simple phase and magnitude sensitivity corrections are incorporated into the SLAM reconstruction to compensate for IV detector non-uniformity.
{"title":"Highly Accelerated, Intravascular T1, T2, and Proton Density Mapping with Linear Algebraic Modeling and Sensitivity Profile Correction at 3T.","authors":"Guan Wang, Yi Zhang, Shashank Sathyanarayana Hegde, Paul A Bottomley","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Vessel wall MRI with intravascular (IV) detectors can produce superior local signal-to-noise ratios (SNR) and generate high-resolution T<sub>1</sub>, T<sub>2</sub>, and proton density (PD) maps that could be used to automatically classify atherosclerotic lesion stage. However, long acquisition times potentially limit multi-parametric mapping. Here, for the first time, spectroscopy with linear algebraic modeling (SLAM) is applied to yield accurate compartment-average T<sub>1</sub>, T<sub>2</sub> and PD measures at least 10 times faster compared to a standard full k-space reconstructed MIX-TSE sequence at 3T. Simple phase and magnitude sensitivity corrections are incorporated into the SLAM reconstruction to compensate for IV detector non-uniformity.</p>","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"24 ","pages":"2829"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5479685/pdf/nihms865664.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35118527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Zhang, Hye-Young Heo, Dong-Hoon Lee, Shanshan Jiang, Xuna Zhao, Paul Bottomley, Jinyuan Zhou
CEST MRI can provide valuable molecular level information in vivo, but its translation to routine clinics is hindered by long imaging times. Regional average CEST measurements often suffice for quantitative evaluation, diagnosis, and treatment assessment, while allowing much shorter scan times. Recently, the spectroscopy with linear algebraic modeling (SLAM) method was adapted for CEST MRI in two dimensions (2D), directly obtaining compartmental-average measurements manifold faster than conventional CEST. Here, the SLAM CEST method is extended from 2D to 3D, and applied to patients with brain tumors with acceleration factors of up to 98-fold.
CEST MRI可以提供体内有价值的分子水平信息，但由于成像时间长，其向常规临床的转化受到阻碍。区域平均CEST测量通常足以进行定量评估，诊断和治疗评估，同时允许更短的扫描时间。近年来，基于线性代数建模(SLAM)的光谱学方法被应用于二维(2D) CEST MRI，直接获得比传统CEST更快的区隔平均测量流形。在这里，SLAM CEST方法从2D扩展到3D，并应用于加速因子高达98倍的脑肿瘤患者。
{"title":"Highly-accelerated CEST Measurements in Three Dimensions with Linear Algebraic Modeling.","authors":"Yi Zhang, Hye-Young Heo, Dong-Hoon Lee, Shanshan Jiang, Xuna Zhao, Paul Bottomley, Jinyuan Zhou","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>CEST MRI can provide valuable molecular level information in vivo, but its translation to routine clinics is hindered by long imaging times. Regional average CEST measurements often suffice for quantitative evaluation, diagnosis, and treatment assessment, while allowing much shorter scan times. Recently, the spectroscopy with linear algebraic modeling (SLAM) method was adapted for CEST MRI in two dimensions (2D), directly obtaining compartmental-average measurements manifold faster than conventional CEST. Here, the SLAM CEST method is extended from 2D to 3D, and applied to patients with brain tumors with acceleration factors of up to 98-fold.</p>","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"24 ","pages":"1524"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5479684/pdf/nihms865665.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35118526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Zhang, Hye-Young Heo, Dong-Hoon Lee, Paul Bottomley, Jinyuan Zhou
CEST imaging has numerous applications, but its widespread clinical use is hampered by relatively long acquisition times. Here, a novel variably-accelerated sensitivity encoding (vSENSE) method is proposed that provides faster CEST acquisitions than conventional SENSE. The vSENSE approach undersamples k-space variably for images acquired at different saturation frequencies to maximize acquisition speed. vSENSE was validated in a phantom and in 8 patients with brain tumors studied at 3T. The vSENSE method provided a 4-fold acceleration, compared to conventional SENSE which permitted only a 2-fold acceleration, with both compared to a full k-space reconstruction.
{"title":"Fast Chemical Exchange Saturation Transfer (CEST) Imaging with Variably-accelerated Sensitivity Encoding (vSENSE).","authors":"Yi Zhang, Hye-Young Heo, Dong-Hoon Lee, Paul Bottomley, Jinyuan Zhou","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>CEST imaging has numerous applications, but its widespread clinical use is hampered by relatively long acquisition times. Here, a novel variably-accelerated sensitivity encoding (vSENSE) method is proposed that provides faster CEST acquisitions than conventional SENSE. The vSENSE approach undersamples k-space variably for images acquired at different saturation frequencies to maximize acquisition speed. vSENSE was validated in a phantom and in 8 patients with brain tumors studied at 3T. The vSENSE method provided a 4-fold acceleration, compared to conventional SENSE which permitted only a 2-fold acceleration, with both compared to a full k-space reconstruction.</p>","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"24 ","pages":"1522"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5479580/pdf/nihms865667.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35118525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M Arcan Erturk, Shashank Sathyanarayana Hegde, Paul A Bottomley
{"title":"A combined interventional high-resolution targeted ablation, thermometry and imaging probe.","authors":"M Arcan Erturk, Shashank Sathyanarayana Hegde, Paul A Bottomley","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"23 ","pages":"1645"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4999296/pdf/nihms780298.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34398016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guan Wang, M Arcan Erturk, Shashank Sathyanarayana Hegde, Paul A Bottomley
{"title":"Automated classification of vessel disease based on high-resolution intravascular multi-parametric mapping MRI.","authors":"Guan Wang, M Arcan Erturk, Shashank Sathyanarayana Hegde, Paul A Bottomley","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"2015 ","pages":"1659"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4869730/pdf/nihms780306.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34500243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Zhang, Dong-Hoon Lee, Kai Zhang, Antonella Mangraviti, Chen Yang, Hye-Young Heo, Betty Tyler, Ari Partanen, Keyvan Farahani, Paul Bottomley, Peter van Zijl, Jinyuan Zhou
{"title":"Multi-parametric MRI Assessment of Tumor Response to High-Intensity Focused Ultrasound in a Rat Glioma Model.","authors":"Yi Zhang, Dong-Hoon Lee, Kai Zhang, Antonella Mangraviti, Chen Yang, Hye-Young Heo, Betty Tyler, Ari Partanen, Keyvan Farahani, Paul Bottomley, Peter van Zijl, Jinyuan Zhou","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"2015 ","pages":"0036"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4869733/pdf/nihms780321.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34500242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A comparative study of 16 tractography algorithms for the corticospinal tract: reproducibility and subject-specificity.","authors":"Emmanuel Caruyer, Luke Bloy, Birkan Tunç, Jérémy Lecoeur, Varsha Shankar, Ragini Verma","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"2014 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213546/pdf/nihms599803.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32788211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yajing Zhang, Linda Chang, Thomas Ernst, Jon Skranes, Steven Buchthal, Daniel Alicata, Heather Johansen, Antonette Hernandez, Robyn Yamakawa, Lillian Fujimoto, Michael Miller, Susumu Mori, Kenichi Oishi
{"title":"Generating a human neonatal brain atlas for superior normalization accuracy.","authors":"Yajing Zhang, Linda Chang, Thomas Ernst, Jon Skranes, Steven Buchthal, Daniel Alicata, Heather Johansen, Antonette Hernandez, Robyn Yamakawa, Lillian Fujimoto, Michael Miller, Susumu Mori, Kenichi Oishi","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"2013 ","pages":"3739"},"PeriodicalIF":0.0,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4629987/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141297797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shashank Sathyanarayana Hegde, Clifford R Weiss, M Arcan Erturk, Paul A Bottomley
{"title":"3T intravascular MRI, IVUS and OCT: A study in contrast.","authors":"Shashank Sathyanarayana Hegde, Clifford R Weiss, M Arcan Erturk, Paul A Bottomley","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"21 ","pages":"1833"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4207269/pdf/nihms516283.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32773900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Zhang, Refaat E Gabr, Jinyuan Zhou, Robert G Weiss, Paul A Bottomley
{"title":"Spectroscopy with linear algebraic modeling (SLAM): speed and quantification in brain tumor studies.","authors":"Yi Zhang, Refaat E Gabr, Jinyuan Zhou, Robert G Weiss, Paul A Bottomley","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":74549,"journal":{"name":"Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition","volume":"21 ","pages":"0530-530"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4207298/pdf/nihms-521443.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32773899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition
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