A novel respiratory gating method for oncologic positron emission tomography based on bioimpedance approach View Full Text


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Article Info

DATE

2015-02-01

AUTHORS

Tuomas Koivumäki, Jarmo Teuho, Mika Teräs, Marko Vauhkonen, Mikko A. Hakulinen

ABSTRACT

ObjectiveRespiratory motion causes loss of image quality and inaccuracy of quantification in oncologic positron emission tomography (PET) imaging. This study introduces a bioimpedance-based gating method for compensation of respiratory motion artefacts.MethodsThe bioimpedance-based respiratory gating method was studied parallel to a clinically used respiratory gating method [Real-time Position Management by Varian Medical Systems] in 4D PET/CT acquisition of 9 oncologic patients. The quantitative analysis consisted of the evaluation of tumour SUVpeak, SUVmax and volume. Additionally, target-to-background ratios as well as motion in cranial–caudal and anterior–posterior directions were measured. The evaluation was performed with amplitude- and time-based gating using averaged attenuation correction maps.ResultsBioimpedance gating resulted in 17.7–18.9 % increase in mean SUVpeak and 20.0–21.4 % decrease in mean volume compared to non-gated images. The maximum motion measured from the bioimpedance-gated images was 19 mm in cranial–caudal direction and 9 mm in anterior–posterior direction.ConclusionsBioimpedance-based respiratory gating compensates the adverse effects of motion in oncologic PET imaging. More... »

PAGES

351-358

References to SciGraph publications

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  • 2011-05-27. Optimizing bioimpedance measurement configuration for dual-gated nuclear medicine imaging: a sensitivity study in MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
  • 2008-06-26. Initial clinical results for breath-hold CT-based processing of respiratory-gated PET acquisitions in EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
  • 2014-06-02. Integrating respiratory-gated PET-based target volume delineation in liver SBRT planning, a pilot study in RADIATION ONCOLOGY
  • 2012-12-14. External radioactive markers for PET data-driven respiratory gating in positron emission tomography in EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
  • 1999-01. Development of respiratory gated myocardial SPECT system in JOURNAL OF NUCLEAR CARDIOLOGY
  • 2008-08-06. Local motion correction for lung tumours in PET/CT—first results in EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s12149-015-0953-y

    DOI

    http://dx.doi.org/10.1007/s12149-015-0953-y

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1029315071

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/25638030


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