Rex E. Gerald II, Anatoly O. Krasavin, Robert E. Botto
{"title":"双组分系统化学位移成像的选择性回波方法","authors":"Rex E. Gerald II, Anatoly O. Krasavin, Robert E. Botto","doi":"10.1006/jmra.1996.0236","DOIUrl":null,"url":null,"abstract":"<div><p>A simple and effective method for selectively imaging either one of two chemical species in a two-component system is presented and demonstrated experimentally. The pulse sequence employed,<em>s</em>elective-<em>e</em>cho<em>c</em>hemical-<em>s</em>hift<em>i</em>maging (SECSI), is a hybrid (frequency-selective/<em>T</em><sub>1</sub>-contrast) technique that is executed in a short period of time, utilizes the full Boltzmann magnetization of each chemical species to form the corresponding image, and requires only hard pulses of quadrature phase. This approach provides a direct and unambiguous representation of the spatial distribution of the two chemical species. In addition, the performance characteristics and the advantages of the SECSI sequence are compared on a common basis to those of other pulse sequences.</p></div>","PeriodicalId":16165,"journal":{"name":"Journal of Magnetic Resonance, Series A","volume":"123 2","pages":"Pages 201-206"},"PeriodicalIF":0.0000,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmra.1996.0236","citationCount":"7","resultStr":"{\"title\":\"A Selective-Echo Method for Chemical-Shift Imaging of Two-Component Systems\",\"authors\":\"Rex E. Gerald II, Anatoly O. Krasavin, Robert E. Botto\",\"doi\":\"10.1006/jmra.1996.0236\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A simple and effective method for selectively imaging either one of two chemical species in a two-component system is presented and demonstrated experimentally. The pulse sequence employed,<em>s</em>elective-<em>e</em>cho<em>c</em>hemical-<em>s</em>hift<em>i</em>maging (SECSI), is a hybrid (frequency-selective/<em>T</em><sub>1</sub>-contrast) technique that is executed in a short period of time, utilizes the full Boltzmann magnetization of each chemical species to form the corresponding image, and requires only hard pulses of quadrature phase. This approach provides a direct and unambiguous representation of the spatial distribution of the two chemical species. In addition, the performance characteristics and the advantages of the SECSI sequence are compared on a common basis to those of other pulse sequences.</p></div>\",\"PeriodicalId\":16165,\"journal\":{\"name\":\"Journal of Magnetic Resonance, Series A\",\"volume\":\"123 2\",\"pages\":\"Pages 201-206\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1006/jmra.1996.0236\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Magnetic Resonance, Series A\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1064185896902363\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnetic Resonance, Series A","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1064185896902363","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Selective-Echo Method for Chemical-Shift Imaging of Two-Component Systems
A simple and effective method for selectively imaging either one of two chemical species in a two-component system is presented and demonstrated experimentally. The pulse sequence employed,selective-echochemical-shiftimaging (SECSI), is a hybrid (frequency-selective/T1-contrast) technique that is executed in a short period of time, utilizes the full Boltzmann magnetization of each chemical species to form the corresponding image, and requires only hard pulses of quadrature phase. This approach provides a direct and unambiguous representation of the spatial distribution of the two chemical species. In addition, the performance characteristics and the advantages of the SECSI sequence are compared on a common basis to those of other pulse sequences.
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