A Movable Phantom Design for Quantitative Evaluation of Motion Correction Studies on High Resolution PET scanners

Oline Vinter Olesen; C Svarer; Merence Sibomana; Sune Høgild Keller; Søren Holm; J Jensen; Flemming Andersen; Liselotte Højgaard

A Movable Phantom Design for Quantitative Evaluation of Motion Correction Studies on High Resolution PET scanners

Oline Vinter Olesen, C Svarer, Merence Sibomana, Sune Høgild Keller, Søren Holm, J Jensen, Flemming Andersen, Liselotte Højgaard

8 Citations (Scopus)

Abstract

Head movements during brain imaging using high resolution positron emission tomography (PET) impair the image quality which, along with the improvement of the spatial resolution of PET scanners, in general, raises the importance of motion correction. Here, we present a new design for an automatic, movable, mechanical PET phantom to simulate patients' head movements while being scanned. This can be used for evaluating motion correction methods. A low-cost phantom controlled by a rotary stage motor was built and tested for axial rotations of 1° - 10° with the multiple acquisition frame method. The phantom is able to perform stepwise and continuous axial rotations with submillimeter accuracy, and the movements are repeatable. The scans were acquired on the high resolution research tomograph dedicated brain scanner. The scans were reconstructed with the new 3-D ordered subset expectation maximization algorithm with modeling of the point spread function (3DOSEM-PSF), and they were corrected for motions based on external tracking information using the Polaris Vicra real-time stereo motion-tracking system. The new automatic, movable phantom has a robust design and is a potential quality assessment tool for the development and evaluation of future motion correction methods.

Original language	English
Journal	I E E E Transactions on Nuclear Science
Volume	57
Issue number	3
Pages (from-to)	1116-1124
ISSN	0018-9499
Publication status	Published - Jun 2010

Cite this

@article{7479357e280f4dc2a7deab53c9c1feea,

title = "A Movable Phantom Design for Quantitative Evaluation of Motion Correction Studies on High Resolution PET scanners",

abstract = "Head movements during brain imaging using high resolution positron emission tomography (PET) impair the image quality which, along with the improvement of the spatial resolution of PET scanners, in general, raises the importance of motion correction. Here, we present a new design for an automatic, movable, mechanical PET phantom to simulate patients' head movements while being scanned. This can be used for evaluating motion correction methods. A low-cost phantom controlled by a rotary stage motor was built and tested for axial rotations of 1° - 10° with the multiple acquisition frame method. The phantom is able to perform stepwise and continuous axial rotations with submillimeter accuracy, and the movements are repeatable. The scans were acquired on the high resolution research tomograph dedicated brain scanner. The scans were reconstructed with the new 3-D ordered subset expectation maximization algorithm with modeling of the point spread function (3DOSEM-PSF), and they were corrected for motions based on external tracking information using the Polaris Vicra real-time stereo motion-tracking system. The new automatic, movable phantom has a robust design and is a potential quality assessment tool for the development and evaluation of future motion correction methods.",

author = "Olesen, {Oline Vinter} and C Svarer and Merence Sibomana and Keller, {Sune H{\o}gild} and S{\o}ren Holm and J Jensen and Flemming Andersen and Liselotte H{\o}jgaard",

year = "2010",

month = jun,

language = "English",

volume = "57",

pages = "1116--1124",

journal = "I E E E Transactions on Nuclear Science",

issn = "0018-9499",

publisher = "Institute of Electrical and Electronics Engineers",

number = "3",

}

TY - JOUR

T1 - A Movable Phantom Design for Quantitative Evaluation of Motion Correction Studies on High Resolution PET scanners

AU - Olesen, Oline Vinter

AU - Svarer, C

AU - Sibomana, Merence

AU - Keller, Sune Høgild

AU - Holm, Søren

AU - Jensen, J

AU - Andersen, Flemming

AU - Højgaard, Liselotte

PY - 2010/6

Y1 - 2010/6

N2 - Head movements during brain imaging using high resolution positron emission tomography (PET) impair the image quality which, along with the improvement of the spatial resolution of PET scanners, in general, raises the importance of motion correction. Here, we present a new design for an automatic, movable, mechanical PET phantom to simulate patients' head movements while being scanned. This can be used for evaluating motion correction methods. A low-cost phantom controlled by a rotary stage motor was built and tested for axial rotations of 1° - 10° with the multiple acquisition frame method. The phantom is able to perform stepwise and continuous axial rotations with submillimeter accuracy, and the movements are repeatable. The scans were acquired on the high resolution research tomograph dedicated brain scanner. The scans were reconstructed with the new 3-D ordered subset expectation maximization algorithm with modeling of the point spread function (3DOSEM-PSF), and they were corrected for motions based on external tracking information using the Polaris Vicra real-time stereo motion-tracking system. The new automatic, movable phantom has a robust design and is a potential quality assessment tool for the development and evaluation of future motion correction methods.

AB - Head movements during brain imaging using high resolution positron emission tomography (PET) impair the image quality which, along with the improvement of the spatial resolution of PET scanners, in general, raises the importance of motion correction. Here, we present a new design for an automatic, movable, mechanical PET phantom to simulate patients' head movements while being scanned. This can be used for evaluating motion correction methods. A low-cost phantom controlled by a rotary stage motor was built and tested for axial rotations of 1° - 10° with the multiple acquisition frame method. The phantom is able to perform stepwise and continuous axial rotations with submillimeter accuracy, and the movements are repeatable. The scans were acquired on the high resolution research tomograph dedicated brain scanner. The scans were reconstructed with the new 3-D ordered subset expectation maximization algorithm with modeling of the point spread function (3DOSEM-PSF), and they were corrected for motions based on external tracking information using the Polaris Vicra real-time stereo motion-tracking system. The new automatic, movable phantom has a robust design and is a potential quality assessment tool for the development and evaluation of future motion correction methods.

M3 - Journal article

SN - 0018-9499

VL - 57

SP - 1116

EP - 1124

JO - I E E E Transactions on Nuclear Science

JF - I E E E Transactions on Nuclear Science

IS - 3

ER -

A Movable Phantom Design for Quantitative Evaluation of Motion Correction Studies on High Resolution PET scanners

Abstract

Fingerprint

Cite this