Fundamentals of 180° acquisition and reconstruction in SPECT imaging

R. L. Eisner; D. J. Nowak; Roderic I. Pettigrew; W. Fajman

Fundamentals of 180° acquisition and reconstruction in SPECT imaging

R. L. Eisner, D. J. Nowak, Roderic I. Pettigrew, W. Fajman

Research output: Contribution to journal › Article › peer-review

Abstract

The accuracy of the reconstructed images obtained from a 180° SPECT acquisition is directly related to the effects of resolution and attenuation in the acquired projection data. Computer simulation studies show that the tomographic point spread functions and the quality of ²⁰¹Tl myocardial perfusion transaxial images depend upon the specific 180° arc used for reconstruction. Significant distortions are predicted in ²⁰¹Tl myocardial images reconstructed from both 180° and 360° scans; with signal to noise being significantly better for 180° scans. An anterior 180° scan with a starting angle between right lateral and 45° RAO in ²⁰¹Tl myocardial imaging is recommended. Reconstructed images acquired from 180° and 360° elliptical orbits are predicted to show more distortion than those obtained from circular acquisitions.

Original language	English (US)
Pages (from-to)	1717-1728
Number of pages	12
Journal	Journal of Nuclear Medicine
Volume	27
Issue number	11
State	Published - Jan 1 1986

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

Cite this

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title = "Fundamentals of 180° acquisition and reconstruction in SPECT imaging",

abstract = "The accuracy of the reconstructed images obtained from a 180° SPECT acquisition is directly related to the effects of resolution and attenuation in the acquired projection data. Computer simulation studies show that the tomographic point spread functions and the quality of 201Tl myocardial perfusion transaxial images depend upon the specific 180° arc used for reconstruction. Significant distortions are predicted in 201Tl myocardial images reconstructed from both 180° and 360° scans; with signal to noise being significantly better for 180° scans. An anterior 180° scan with a starting angle between right lateral and 45° RAO in 201Tl myocardial imaging is recommended. Reconstructed images acquired from 180° and 360° elliptical orbits are predicted to show more distortion than those obtained from circular acquisitions.",

author = "Eisner, {R. L.} and Nowak, {D. J.} and Pettigrew, {Roderic I.} and W. Fajman",

year = "1986",

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language = "English (US)",

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journal = "Journal of Nuclear Medicine",

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T1 - Fundamentals of 180° acquisition and reconstruction in SPECT imaging

AU - Eisner, R. L.

AU - Nowak, D. J.

AU - Pettigrew, Roderic I.

AU - Fajman, W.

PY - 1986/1/1

Y1 - 1986/1/1

N2 - The accuracy of the reconstructed images obtained from a 180° SPECT acquisition is directly related to the effects of resolution and attenuation in the acquired projection data. Computer simulation studies show that the tomographic point spread functions and the quality of 201Tl myocardial perfusion transaxial images depend upon the specific 180° arc used for reconstruction. Significant distortions are predicted in 201Tl myocardial images reconstructed from both 180° and 360° scans; with signal to noise being significantly better for 180° scans. An anterior 180° scan with a starting angle between right lateral and 45° RAO in 201Tl myocardial imaging is recommended. Reconstructed images acquired from 180° and 360° elliptical orbits are predicted to show more distortion than those obtained from circular acquisitions.

AB - The accuracy of the reconstructed images obtained from a 180° SPECT acquisition is directly related to the effects of resolution and attenuation in the acquired projection data. Computer simulation studies show that the tomographic point spread functions and the quality of 201Tl myocardial perfusion transaxial images depend upon the specific 180° arc used for reconstruction. Significant distortions are predicted in 201Tl myocardial images reconstructed from both 180° and 360° scans; with signal to noise being significantly better for 180° scans. An anterior 180° scan with a starting angle between right lateral and 45° RAO in 201Tl myocardial imaging is recommended. Reconstructed images acquired from 180° and 360° elliptical orbits are predicted to show more distortion than those obtained from circular acquisitions.

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AN - SCOPUS:0022810962

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JO - Journal of Nuclear Medicine

JF - Journal of Nuclear Medicine

IS - 11

ER -

Fundamentals of 180° acquisition and reconstruction in SPECT imaging

Abstract

ASJC Scopus subject areas

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