Application of convergent-beam collimation and simultaneous transmission emission tomography to cardiac single-photon emission computed tomography*

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Single-photon emission computed tomography (SPECT) is the most commonly performed imaging technique for perfusion studies of the heart and brain. However, these organs are much smaller than the crystal surface of gamma cameras. SPECT sensitivity and resolution can be improved by using fan- and cone-beam collimators to magnify the image of these organs over a larger portion of the crystal face. Special orbits and reconstruction algorithms must be used with convergent-beam acquisitions to prevent image distortion. Differential attenuation of source activity in the chest is one of the most vexing problems in cardiac SPECT, especially with Thallium-201. Multi-headed cameras equipped with convergent-beam collimators allow a transmission image to be obtained at the same time as emission images. applying a transmission map of the chest attenuation values to the emission images produces a truer picture of source distribution in the heart. This article reviews the technical problems associated with convergent-beam geometry and simultaneous transmission emission tomography SPECT imaging of the heart.

References (66)

  • DatzFL et al.

    SPECT myocardial perfusion imaging update

    Semin Ultrasound CT MR

    (1991)
  • JasczakRJ et al.

    Single-photon emission computed tomography using multi-slice fan beam collimator

    IEEE Trans Nucl Sci

    (1979)
  • GullbergGT et al.

    Review of convergent beam tomography in single-photon emission computed tomography

    Phys Med Biol

    (1992)
  • TungCH et al.

    Non-uniform attenuation correction using simultaneous transmission and emission converging tomography

    IEEE Trans Nucl Sci

    (1992)
  • TsuiBMW et al.

    Design and clinical utility of a fan beam collimator for SPECT imaging of the head

    J Nucl Med

    (1986)
  • JaszczakRJ et al.

    Cone beam collimator for single-photon emission computed tomography: Analysis, simulation and image reconstruction using filtered backprojection

    Med Phys

    (1986)
  • JaszczakRJ et al.

    SPECT using a specially designed cone beam collimator

    J Nucl Med

    (1988)
  • FloydCD et al.

    Cone beam collimation for SPECT: Simulation and reconstruction

    IEEE Trans Nucl Sci NS

    (1986)
  • GullbergGT et al.

    Cone beam tomography of the heart using SPECT

    Invest Radiol

    (1991)
  • GullbergGT et al.

    Single-photon emission computed tomography of the heart using cone beam geometry and noncircular detector rotation

  • SorensonJA et al.

    The Anger camera: Basic principles

  • ManglosSH et al.

    Cone beam SPECT reconstruction with camera tilt

    Phys Med Biol

    (1989)
  • HawmanEG et al.

    An astigmatic collimator for high-sensitivity SPECT of the brain

    J Nucl Med

    (1986)
  • TuyHK

    An inversion formula for cone-beam reconstruction SIAM

    J Appl Math

    (1983)
  • SmithBD

    Image reconstruction from cone-beam projections: Necessary and sufficient conditions and reconstruction methods

    IEEE Trans Med Imag MI

    (1985)
  • ZengGL et al.

    Cone-beam tomography algorithm for orthogonal circle-and-line orbit

    Phys Med Biol

    (1992)
  • FeldkampLA et al.

    Practical cone-beam algorithm

    J Opt Soc Am

    (1984)
  • ColemanRE et al.

    Comparison of 180° and 360° data collection in 201Tl imaging using single-photon emission computerized tomography (SPECT): Concise communication

    J Nucl Med

    (1982)
  • TamakiN et al.

    Comparative study of thallium emission myocardial tomography with 180° and 360° data collection

    J Nucl Med

    (1982)
  • GoRT et al.

    Clinical evaluation of 360° and 180° data sampling techniques for transaxial SPECT 201Tl myocardial perfusion imaging

    J Nucl Med

    (1985)
  • EisnerRL et al.

    Fundamentals of 180° acquisition and reconstruction in SPECT imaging

    J Nucl Med

    (1986)
  • TsuiBMW et al.

    Comparison of 180° and 360° constructions for cardiac SPECT using 201Tl and 99mTc agents

    J Nucl Med

    (1989)
  • GottschalkSC et al.

    SPECT resolution and uniformity improvements by noncircular orbit

    J Nucl Med

    (1983)
  • JaszczakRJ et al.

    Single-photon emission computed tomography (SPECT) principles and instrumentation

    Invest Radiol

    (1985)
  • GullbergGT et al.

    Cone beam tomography of the heart using single-photon emission-computed tomography

    Invest Radiol

    (1991)
  • NaparstekA

    Short-scan fan-beam algorithms for CT

    IEEE Trans Nucl Sci NS

    (1980)
  • ParkerDL

    Optimal short scan convolution reconstruction for fan-beam CT

    Med Phys

    (1982)
  • ZengGL et al.

    A study of reconstruction artifacts in cone beam tomography using filtered backprojection and iterative EM algorithms

    IEEE Trans Nucl Sci NS

    (1990)
  • MalkoJA et al.

    SPECT liver imaging using an iterative attenuation correction algorithm and an external flood source

    J Nucl Med

    (1986)
  • TsuiBMW et al.

    Correction of nonuniform attenuation in cardiac SPECT imaging

    J Nucl Med

    (1989)
  • ManglosSH et al.

    Attenuation maps for SPECT determined using cone beam transmission computed tomography

    IEEE Trans Nucl Sci

    (1990)
  • TungCH et al.

    Simultaneous transmission and emission converging tomography with a multi-detector SPECT system

    J Nucl Med

    (1991)
  • TsuiBMW et al.

    The geometric transfer function for cone and fan beam collimators

    Phys Med Biol

    (1990)

    • Cited by (0)

    *

    Supported by National Institutes of Health Grant No. R01 HL 39792.

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    Copyright © 1994 Published by Elsevier Inc.