HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Prigent, F. M. Articles by Rozanski, A. Search for Related Content PubMed PubMed Citation Articles by Prigent, F. M. Articles by Rozanski, A.

Effect of Motion on Thallium-201 SPECT Studies: A Simulation and Clinical Study

Departments of Medicine (Division of Cardiology) and Nuclear Medicine, Cedars-Sinai Medical Center
Department of Medicine, UCLA School of Medicine, Los Angeles, California

Correspondence: For correspondence or reprints contact: Florence Prigent, MD, 1915 Brickell Ave., #C813, Miami, FL 33129.

ABSTRACT

Although patient motion on ²⁰¹Tl SPECT studies has been reported as a source of artifacts, systematic studies on motion patterns and resultant artifacts are lacking. Accordingly, we simulated 74 motion patterns upon a normal study. The tomograms were assessed for presence of defects: The "emotion pixel area index" ranged from 1 to 83; 26 of 30 (87%) simulations with an index 21 had defects, whereas 38 of 44 (86%) simulations with an index <21 were normal. Defect location was dependent on motion direction; defect intensity was dependent on its magnitude and timing. Review of data acquisition in 164 recent normal patient studies revealed motion in 42 (26%). Motion was generally minimal and caused defects in only seven (4%). Thus, mild motion is unlikely to produce defects. In our laboratory, motion is now an infrequent source of artifacts; severe motion produces recognizable patterns that depend on its direction, magnitude and timing.

FOOTNOTES

^* Presently at St. Luke's/Roosevelt Medical Center, New York, NY.

This article has been cited by other articles:

				A. O. Karacalioglu, B. Jata, S. Kilic, N. Arslan, S. Ilgan, and M. A. Ozguven A Physiologic Approach to Decreasing Upward Creep of the Heart During Myocardial Perfusion Imaging J. Nucl. Med. Technol., December 1, 2006; 34(4): 215 - 219. [Abstract] [Full Text] [PDF]

				S. R. Zakavi, A. Zonoozi, V. D. Kakhki, M. Hajizadeh, M. Momennezhad, and K. Ariana Image Reconstruction Using Filtered Backprojection and Iterative Method: Effect on Motion Artifacts in Myocardial Perfusion SPECT J. Nucl. Med. Technol., December 1, 2006; 34(4): 220 - 223. [Abstract] [Full Text] [PDF]

				J. M. Wheat and G. M. Currie Impact of Patient Motion on Myocardial Perfusion SPECT Diagnostic Integrity: Part 2 J. Nucl. Med. Technol., September 1, 2004; 32(3): 158 - 163. [Abstract] [Full Text] [PDF]

				J. M. Wheat and G. M. Currie Incidence and Characterization of Patient Motion in Myocardial Perfusion SPECT: Part 1 J. Nucl. Med. Technol., June 1, 2004; 32(2): 60 - 65. [Abstract] [Full Text] [PDF]

				A. G. Pitman, V. Kalff, B. Van Every, B. Risa, L. R. Barnden, and M. J. Kelly Effect of Mechanically Simulated Diaphragmatic Respiratory Motion on Myocardial SPECT Processed With and Without Attenuation Correction J. Nucl. Med., September 1, 2002; 43(9): 1259 - 1267. [Abstract] [Full Text] [PDF]

				N. Matsumoto, D. S. Berman, P. B. Kavanagh, J. Gerlach, S. W. Hayes, H. C. Lewin, J. D. Friedman, and G. Germano Quantitative Assessment of Motion Artifacts and Validation of a New Motion-Correction Program for Myocardial Perfusion SPECT J. Nucl. Med., May 1, 2001; 42(5): 687 - 694. [Abstract] [Full Text]