Analytical tools for magnetic resonance imaging.
Analytical tools for magnetic resonance imaging.
复制标题
磁共振成像分析工具。
DOI：
10.1148/radiology.153.2.6091173
复制
发表时间：
1984
期刊：
影响因子：
19.7
通讯作者：
Stark,DD
中科院分区：
文献类型：
--
作者：
Ortendahl,DA;Hylton,N;Kaufman,L;Watts,JC;Crooks,LE;Mills,CM;Stark,DD
不同的磁共振（MR）技术对组织参数的反应- T1， T2和N(H) -是临床疗效的决定因素。大量可能的成像技术和每种成像技术的可变参数范围使得很难在单个患者甚至动物模型中进行详尽的评估。此外，工作磁场强度的变化足以改变弛豫时间，因此，一种技术在给定磁场下的有效性并不意味着在另一场值下也会产生类似的结果。工具被证明可以评估任何模型对组织参数的反应的有效性，并且还允许研究改变磁场的影响。组织之间的信号差异的全局图以及计算图像可从一个最小的足够的数据集。这些工具是实验工作的重要辅助工具。
The response of different magnetic resonance (MR) techniques to tissue parameters - T1, T2, and N(H) - is a determinant of clinical efficacy. The large possible number of imaging techniques and range of variable parameters for each make it difficult to perform exhaustive evaluations in a single patient or even in animal models. In addition, changes in operating magnetic field strength change the relaxation times sufficiently so that the efficacy of a technique at a given field does not imply similar results at another field value. Tools are demonstrated that permit the evaluation of the efficacy of any model of response to tissue parameters, and also allow the investigation of the effects of changing magnetic field. Global maps of signal difference between tissues as well as calculated images are obtainable from a minimally sufficient data set. These tools serve as an important adjunct to experimental work.