SENSITIVITIES FOR CONTRAST AGENT IMAGING IN CT SCANS USING SINGLE ENERGY SYNCHROTRON RADIATION

被引：3

作者：

MCCARTHY, KJ

FRYAR, J

机构：

[1] School of Physical Sciences, Dublin City University, Dublin

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 287卷 / 03期

关键词：

D O I：

10.1016/0168-9002(90)91586-Z

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Two basic methods are available for the imaging of elements in CT using synchrotron or other monochromatic radiation. By switching the energy of the X-ray beam across an absorption edge, images can be produced whether or not the analyte can be added to the matrix after a scan of the matrix. If the matrix can be scanned and then the analyte added, as in some studies using contrast agents, the energy of the X-ray beam does not need to be changed between scans. A study is made of the sensitivity for elemental imaging in such cases and an equation which gives the minimum detectable analyte concentration is derived. © 1990.

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收藏

页码：613 / 618

页数：6

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