| A novel method for evaluating and improving the ~1H-MRSI glioma data quality |
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| 引用本文： | YUAN Kehong 1,2,LU Hongyu2,BAO Shanglian2*,CHEN Qiansheng1,LI Shaowu3 and DUAN Chaijie2(1. Key Laboratory of Pure and Applied Mathematics,School of Mathematical Sciences,Beijing 100871,China, 2. The Research Center for Tumor Diagnosis and Therapeutical Physics & the Beijing Key Laboratory of Medical Physics and Engineering,Peking University,Beijing 100871,China, 3. The Tian Tan Hospital,Beijing 100050,China). A novel method for evaluating and improving the ~1H-MRSI glioma data quality[J]. 自然科学进展(英文版), 2005, 15(8). DOI: 10.1080/10020070512331342890 |
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| 作者姓名： | YUAN Kehong 1 2 LU Hongyu2 BAO Shanglian2* CHEN Qiansheng1 LI Shaowu3 and DUAN Chaijie2(1. Key Laboratory of Pure and Applied Mathematics School of Mathematical Sciences Beijing 100871 China 2. The Research Center for Tumor Diagnosis and Therapeutical Physics & the Beijing Key Laboratory of Medical Physics and Engineering Peking University Beijing 100871 China 3. The Tian Tan Hospital Beijing 100050 China) |
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| 作者单位： | 1. Key Laboratory of Pure and Applied Mathematics，School of Mathematical Sciences，Beijing 100871，China; 2. The Research Center for Tumor Diagnosis and Therapeutical Physics & the Beijing Key Laboratory of Medical Physics and Engineering，Peking University，Beijing 100871，China; 3. The Tian Tan Hospital，Beijing 100050，China |
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| 基金项目： | 国家自然科学基金，北京市自然科学基金 |
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| 摘 要： | Protonmagneticresonancespectroscopicimaging(1H MRSI)hasbeenintensivelystudiedtoquantita tivelyanalyzegliomaforclinician[1—3],including definingthetumorboundary,tumorpropertyandde terminingthetumorlevel.However,rawgliomadata of1H MRSIusuallyinvolvevariousartifacts,suchas thethermalnoise,eddycurrents,susceptibilityarti facts,rigidbodymotion,physiologicalpulsationflow andhardwareissues,whichsignificantlyaffectthe accuracyofthemeasuredresults.1H MRSIisdiffer entfrommagneticresonanceimaging(…
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A novel method for evaluating and improving the 1H-MRSI glioma data quality |
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| YUAN Kehong,LU Hongyu,Bao Shanglian,CHEN Qiansheng,LI Shaowu,DUAN Chaijie. A novel method for evaluating and improving the 1H-MRSI glioma data quality[J]. Progress in Natural Science, 2005, 15(8). DOI: 10.1080/10020070512331342890 |
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| Authors: | YUAN Kehong LU Hongyu Bao Shanglian CHEN Qiansheng LI Shaowu DUAN Chaijie |
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| Abstract: | Metabolic information obtained by proton magnetic resonance spectroscopic imaging (1H-MRSI) has been approved to be a powerful tool to identify either benign or malignant glioma, as well as to confirm the tumor level. However, 1H-MRSI data are affected by various factors, such as the thermal noise, eddy currents, susceptibility artifacts, and rigid body motion. To get accurate quantitative metabolic information, the key problem is to assess the 1H-MRSI data quality. In this paper, we introduce a new evaluating system to filter the data, and a new method, called wavelet denoising method, to improve the data quality under the evaluating system. Experimental results on 1H-MRSI glioma data demonstrate that preprocessing is prerequisite and the proposed algorithm with evaluating system is effective. |
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| Keywords: | 1H-MRSI evaluating system glioma data quality wavelet denoising |
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