MR oximetry.
MR oximetry.
复制标题
MR 血氧测定法。
DOI:
10.1007/978-1-61779-219-9_12
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Dunn,JeffF
中科院分区:
文献类型:
--
作者:
Dunn,JeffF
MR oximetry includes methods for assessing tissue oxygenation. This chapter focuses on direct measurements of oxygenation. These can be divided into three methods. The first and most common has been termed BOLD MRI and relates to the quantification of deoxyhemoglobin. The second method uses an injected fluorinated agent which has aT1that is sensitive to tissue oxygen levels. The third is a direct measurement ofT1under conditions where the variation inT1can be limited to that caused by changes in pO2. These conditions can be met in the vitreous of the eye or the cerebrospinal fluids. Such changes in the eye have been called the retinal oxygenation response.