{"title":"序列","authors":"E. Mark Haacke","doi":"10.1002/0471142719.mib0500s13","DOIUrl":null,"url":null,"abstract":"T his chapter introduces the reader to the signal response associated with different types of sequences. The first two units discuss short TR gradient echo sequences. Second only to spin-echo methods, these powerful gradient-echo techniques are used for rapid conventional and dynamic 2and 3-D imaging, most often for 3-D imaging of the brain and MR angiography. A proper understanding of the imaging parameters such as TR, TE, and flip angle are critical to their proper use.","PeriodicalId":100347,"journal":{"name":"Current Protocols in Magnetic Resonance Imaging","volume":"13 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2005-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/0471142719.mib0500s13","citationCount":"582","resultStr":"{\"title\":\"Sequences\",\"authors\":\"E. Mark Haacke\",\"doi\":\"10.1002/0471142719.mib0500s13\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"T his chapter introduces the reader to the signal response associated with different types of sequences. The first two units discuss short TR gradient echo sequences. Second only to spin-echo methods, these powerful gradient-echo techniques are used for rapid conventional and dynamic 2and 3-D imaging, most often for 3-D imaging of the brain and MR angiography. A proper understanding of the imaging parameters such as TR, TE, and flip angle are critical to their proper use.\",\"PeriodicalId\":100347,\"journal\":{\"name\":\"Current Protocols in Magnetic Resonance Imaging\",\"volume\":\"13 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1002/0471142719.mib0500s13\",\"citationCount\":\"582\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Protocols in Magnetic Resonance Imaging\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/0471142719.mib0500s13\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Protocols in Magnetic Resonance Imaging","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/0471142719.mib0500s13","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
T his chapter introduces the reader to the signal response associated with different types of sequences. The first two units discuss short TR gradient echo sequences. Second only to spin-echo methods, these powerful gradient-echo techniques are used for rapid conventional and dynamic 2and 3-D imaging, most often for 3-D imaging of the brain and MR angiography. A proper understanding of the imaging parameters such as TR, TE, and flip angle are critical to their proper use.
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