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Journal of Magnetic Resonance (1969)最新文献

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Magnetic resonance imaging—clinical principles 磁共振成像-临床原理
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90227-X
Anthony A Mancuso
{"title":"Magnetic resonance imaging—clinical principles","authors":"Anthony A Mancuso","doi":"10.1016/0022-2364(92)90227-X","DOIUrl":"10.1016/0022-2364(92)90227-X","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 671-672"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90227-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88736324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Spectroscopy of polymers 聚合物光谱学
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90226-W
Kathryn R Williams
{"title":"Spectroscopy of polymers","authors":"Kathryn R Williams","doi":"10.1016/0022-2364(92)90226-W","DOIUrl":"10.1016/0022-2364(92)90226-W","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 669-670"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90226-W","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89281321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heteronuclear transverse relaxation in AMX, AX2, and AX3 spin systems AMX、AX2和AX3自旋体系中的异核横向弛豫
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90218-V
Lewis E Kay , T.E Bull
{"title":"Heteronuclear transverse relaxation in AMX, AX2, and AX3 spin systems","authors":"Lewis E Kay , T.E Bull","doi":"10.1016/0022-2364(92)90218-V","DOIUrl":"10.1016/0022-2364(92)90218-V","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 615-622"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90218-V","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79582179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 34
Sensitivity of optically excited and detected magnetic resonance 光激发和检测磁共振的灵敏度
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90205-L
Dieter Suter
{"title":"Sensitivity of optically excited and detected magnetic resonance","authors":"Dieter Suter","doi":"10.1016/0022-2364(92)90205-L","DOIUrl":"https://doi.org/10.1016/0022-2364(92)90205-L","url":null,"abstract":"<div><p>Compared to other forms of spectroscopy, the sensitivity of magnetic resonance experiments is relatively low, so that large numbers of spins are necessary for an experiment. This contrasts with related fields, most notably optical spectroscopy, where it has become possible, in recent years, to obtain spectroscopic information from individual atomic and molecular systems. This article investigates possible means for transferring some of this sensitivity advantage to the domain of magnetic resonance and gives numerical estimates of the expected signal-to-noise ratios, as well as experimental examples.</p></div>","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 495-506"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90205-L","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72241698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Assignment of 13C NMR spectra of solids using fast MAS with cross-polarization 交叉极化快速MAS对固体13C核磁共振谱的赋值
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90217-U
Waclaw Kolodziejski, Jacek Klinowski
{"title":"Assignment of 13C NMR spectra of solids using fast MAS with cross-polarization","authors":"Waclaw Kolodziejski,&nbsp;Jacek Klinowski","doi":"10.1016/0022-2364(92)90217-U","DOIUrl":"10.1016/0022-2364(92)90217-U","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 611-614"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90217-U","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90071355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
B1-insensitive heteronuclear adiabatic polarization transfer for signal enhancement 用于信号增强的B1不敏感异核绝热极化转移
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90204-K
Hellmut Merkle, Haoran Wei, Michael Garwood, Kâmil Uǧurbil
{"title":"B1-insensitive heteronuclear adiabatic polarization transfer for signal enhancement","authors":"Hellmut Merkle,&nbsp;Haoran Wei,&nbsp;Michael Garwood,&nbsp;Kâmil Uǧurbil","doi":"10.1016/0022-2364(92)90204-K","DOIUrl":"https://doi.org/10.1016/0022-2364(92)90204-K","url":null,"abstract":"<div><p>A new <em>B</em><sub>1</sub>-insensitive pulse sequence, BINEPT (for <em>B</em><sub>1</sub>-insensitive nuclear enhancement through <em>p</em>olarization transfer) is introduced that accomplishes signal enhancement for low-sensitivity nuclei through heteronuclear polarization transfer. Previously described methods for polarization transfer through <em>J</em>-ordered states such as INEPT [D. P. Burum and R. R. Ernst, <em>J. Magn. Reson</em>. <strong>39</strong>, 163 (1980)] require homogeneous <em>B</em><sub>1</sub> fields and carefully calibrated pulses to impart <span><math><mtext>π</mtext><mtext>2</mtext></math></span> and π rotations in order to achieve the maximum possible signal enhancement. In contrast, BINEPT, which is based on recently introduced adiabatic plane-rotation pulses, can induce the desired enhancement over a very large range of <em>B</em><sub>1</sub> magnitude and can be used even with surface coils that generate highly inhomogeneous <em>B</em><sub>1</sub> fields. BINEPT is not simply the INEPT sequence with the conventional pulses replaced with their adiabatic plane-rotation pulse analogs. Rather, it is based on the variable-angle, adiabatic BIR-4 pulse [M. Garwood and Y. Ke, <em>J. Magn. Reson</em>. <strong>94</strong>, 511 (1991)] and the principle that the evolution of spin states during intrapulse delays inserted in BIR-4 can determine the final rotation induced on magnetization vectors. The BINEPT technique is described theoretically in the rotating frame. Its performance is compared experimentally with INEPT using coils that generate homogeneous and inhomogeneous <em>B</em><sub>1</sub> fields.</p></div>","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 480-494"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90204-K","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72241680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Accuracy and precision in the estimation of in Vivo magnetic-resonance spectral parameters 体内磁共振谱参数估计的准确性和精密度
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90214-R
E.K.-Y Ho, R.E Snyder, P.S Allen
{"title":"Accuracy and precision in the estimation of in Vivo magnetic-resonance spectral parameters","authors":"E.K.-Y Ho,&nbsp;R.E Snyder,&nbsp;P.S Allen","doi":"10.1016/0022-2364(92)90214-R","DOIUrl":"10.1016/0022-2364(92)90214-R","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 590-595"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90214-R","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88575671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Structure and dynamics of bulk polymers by NMR methods 体聚合物的核磁共振结构和动力学
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90225-V
David L Vanderhart
{"title":"Structure and dynamics of bulk polymers by NMR methods","authors":"David L Vanderhart","doi":"10.1016/0022-2364(92)90225-V","DOIUrl":"https://doi.org/10.1016/0022-2364(92)90225-V","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 668-669"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90225-V","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136548828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EPR resonator coupling monitor EPR谐振器耦合监视器
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90211-O
Richard W Quine, George A Rinard, Sandra S Eaton, Gareth R Eaton
{"title":"EPR resonator coupling monitor","authors":"Richard W Quine,&nbsp;George A Rinard,&nbsp;Sandra S Eaton,&nbsp;Gareth R Eaton","doi":"10.1016/0022-2364(92)90211-O","DOIUrl":"10.1016/0022-2364(92)90211-O","url":null,"abstract":"<div><p>A circular display of impedance (Smith Chart) is a convenient monitor of the impedance matching (coupling) of an EPR resonator to the microwave transmission line in the spectrometer. An implementation using inexpensive components is described that could be applied in a wide range of EPR spectrometers.</p></div>","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 571-575"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90211-O","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80034842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Semiempirical calculations of the dispersion contribution to the proton chemical shift 色散对质子化学位移贡献的半经验计算
Journal of Magnetic Resonance (1969) Pub Date : 1992-10-01 DOI: 10.1016/0022-2364(92)90216-T
Claude Giessner-Prettre , Nohad Gresh , Jacques Maddaluno
{"title":"Semiempirical calculations of the dispersion contribution to the proton chemical shift","authors":"Claude Giessner-Prettre ,&nbsp;Nohad Gresh ,&nbsp;Jacques Maddaluno","doi":"10.1016/0022-2364(92)90216-T","DOIUrl":"10.1016/0022-2364(92)90216-T","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"99 3","pages":"Pages 605-610"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90216-T","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87330196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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