Trajectory analysis for magnetic particle imaging

被引：139

作者：

Knopp, T. ^{[1
]}

Biederer, S. ^{[1
]}

Sattel, T. ^{[1
]}

Weizenecker, J. ^{[2
]}

Gleich, B. ^{[2
]}

Borgert, J. ^{[2
]}

Buzug, T. M. ^{[1
]}

机构：

[1] Med Univ Lubeck, Inst Med Engn, D-23538 Lubeck, Germany

[2] Sector Med Imaging Syst, Philips Res Europe, Hamburg, Germany

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 2009年 / 54卷 / 02期

关键词：

D O I：

10.1088/0031-9155/54/2/014

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Recently a new imaging technique called magnetic particle imaging was proposed. The method uses the nonlinear response of magnetic nanoparticles when a time varying magnetic field is applied. Spatial encoding is achieved by moving a field-free point through an object of interest while the field strength in the vicinity of the point is high. A resolution in the submillimeter range is provided even for fast data acquisition sequences. In this paper, a simulation study is performed on different trajectories moving the field-free point through the field of view. The purpose is to provide mandatory information for the design of a magnetic particle imaging scanner. Trajectories are compared with respect to density, speed and image quality when applied in data acquisition. Since simulation of the involved physics is a time demanding task, moreover, an efficient implementation is presented utilizing caching techniques.

引用

页码：385 / 397

页数：13