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Techniques for generating attenuation map using cardiac SPECT emission data only: a systematic review.

Getu Ferenji Tadesse1,2,3, Parham Geramifar4, Eyachew Misganew Tegaw1,2,5

  • 1Department of Medical Physics and Biomedical engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Annals of Nuclear Medicine
|October 24, 2018
PubMed
Summary

Accurate attenuation correction is essential for quantitative cardiac SPECT imaging. This review summarizes transmissionless methods for creating patient-specific attenuation maps, highlighting promising but developing techniques for clinical use.

Keywords:
Attenuation correctionAttenuation mapCardiacEmission dataSPECT

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Area of Science:

  • Nuclear Medicine
  • Medical Imaging
  • Quantitative Analysis

Background:

  • Accurate quantitative analysis in cardiac SPECT relies on effective attenuation correction.
  • Patient-specific attenuation maps are crucial for reliable SPECT quantitative imaging.

Purpose of the Study:

  • To systematically review general principles of attenuation correction in cardiac SPECT.
  • To summarize transmissionless methods for generating attenuation maps using only SPECT emission data.

Main Methods:

  • Systematic literature search of PubMed, EMBASE, Scopus, and Web of Science.
  • Inclusion of articles on attenuation map determination using SPECT emission data only.
  • Review of transmissionless techniques including calculated methods, statistical modeling, and scattered data approaches.

Main Results:

  • Identified and reviewed various transmissionless techniques for attenuation map generation in cardiac SPECT.
  • Found that methods for attenuation map creation are advancing with promising progress.
  • Noted that clinical efficacy assessment of these correction schemes requires further investigation.

Conclusions:

  • Transmissionless methods for cardiac SPECT attenuation map generation are evolving.
  • Further research is necessary to validate the clinical utility of these advanced correction techniques.