An accurate method for correction of head movement in PET

被引：91

作者：

Bühler, P

Just, U

Will, E

Kotzerke, J

van den Hoff, J

机构：

[1] Tech Univ Dresden, Dept Nucl Med, D-01328 Dresden, Germany

[2] PET Ctr Rossendorf, D-01314 Dresden, Germany

来源：

IEEE TRANSACTIONS ON MEDICAL IMAGING | 2004年 / 23卷 / 09期

关键词：

motion compensation; motion measurement; positron emission tomography;

D O I：

10.1109/TMI.2004.831214

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A method is presented to correct positron emission tomography (PET) data for head motion during data acquisition. The method is based on simultaneous acquisition of PET data in list mode and monitoring of the patient's head movements with a motion tracking system. According to the measured head motion, the line of response (LOR) of each single detected PET event is spatially transformed, resulting in a spatially fully corrected data set. The basic algorithm for spatial transformation of LORs is based on a number of assumptions which can lead to spatial artifacts and quantitative inaccuracies in the resulting images. These deficiencies are discussed, demonstrated and methods for improvement are presented. Using different kinds of phantoms the validity and accuracy of the correction method is tested and its applicability to human studies is demonstrated as well.

引用

页码：1176 / 1185

页数：10

共 19 条

[1] Performance evaluation of the whole-body PET scanner ECAT EXACT HR+ following the IEC standard [J].

Adam, LE ;

Zaers, J ;

Ostertag, H ;

Trojan, H ;

Bellemann, ME ;

Brix, G .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1997, 44 (03) :1172-1179

[2] How to obtain high-accuracy image registration: application to movement correction of dynamic positron emission tomography data [J].

Andersson, JLR .

EUROPEAN JOURNAL OF NUCLEAR MEDICINE, 1998, 25 (06) :575-586

[3] The design and implementation of a motion correction scheme for neurological PET [J].

Bloomfield, PM ;

Spinks, TJ ;

Reed, J ;

Schnorr, L ;

Westrip, AM ;

Livieratos, L ;

Fulton, R ;

Jones, T .

PHYSICS IN MEDICINE AND BIOLOGY, 2003, 48 (08) :959-978

[4]

CASEY M, 2002, COMMUNICATION

[5]

Casey M. E., 1995, Proceedings of the 1995 International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, P67

[6]

Daube-Witherspoon ME, 2002, J NUCL MED, V43, P1398

[7] Correction for head movements in positron emission tomography using an optical motion-tracking system [J].