Clinical evaluation of correction of cardiac respiratory motion accounting for irregular respiration

J Dey, M King, PH Pretorius, R Walvick, S Dahlberg - 2010 - Soc Nuclear Med
1364 Objectives In SPECT when the respiration varies there can be a large variation in the
counts in amplitude bins at different projection angles. This can result in limited-angle …

Estimation and correction of cardiac respiratory motion in SPECT in the presence of limited‐angle effects due to irregular respiration

J Dey, WP Segars, PH Pretorius, RP Walvick… - Medical …, 2010 - Wiley Online Library
Purpose: One issue with amplitude binning list‐mode studies in SPECT for respiratory
motion correction is that variation in the patient's respiratory pattern will result in binned …

Non-rigid full torso respiratory motion correction of SPECT studies

J Dey, MA King - IEEE Nuclear Science Symposuim & Medical …, 2010 - ieeexplore.ieee.org
Respiratory motion artifact is one of the factors limiting the diagnostic accuracy of SPECT or
PET. Full-torso respiratory motion correction in general requires non-rigid respiratory motion …

Impact of variability in respiration on estimation and correction of respiratory motion of the heart in SPECT

J Dey, KJ Johnson, PH Pretorius… - 2007 IEEE Nuclear …, 2007 - ieeexplore.ieee.org
Respiratory motion combined with the" respiratory creep" of the heart can impact the
diagnostic accuracy of cardiac PET or SPECT perfusion images. Several groups have …

Compensation of respiratory motion in cardiac SPECT with list-mode acquisition and an external respiration-tracking device

PP Bruyant, B Feng, PH Pretorius, S Dahlberg… - Journal of Nuclear …, 2004 - Elsevier
Background Respiratory motion is one of the leading causes for artifacts in cardiac SPECT.
We present a compensation method based on the knowledge of the respiratory state of the …

Estimation and correction of irregular respiratory motion of the heart in presence of partial angle effects due to amplitude binning in SPECT

J Dey, WP Segars, PH Pretorius… - 2008 IEEE Nuclear …, 2008 - ieeexplore.ieee.org
Respiratory motion combined with the “respiratory creep” of the heart can affect the
appearance of defects and even conceal them, thereby impacting the diagnostic accuracy of …

SPECT acquisition using dynamic projections: a novel approach for data-driven respiratory gating

BF Hutton, RL Hatton, N Yip - ANZ Nuclear Medicine, 2002 - osti.gov
Full text: Movement of the heart due to respiration has been previously demonstrated to
produce potentially serious artefacts. On-line respiratory gating is difficult, as it requires a …

Investigation of respiratory motion correction with and without motion correction of attenuation map in cardiac SPECT/CT in presence of non-rigid motion, an NCAT …

J Dey, WP Segars, PH Pretorius… - 2011 IEEE Nuclear …, 2011 - ieeexplore.ieee.org
Respiratory motion combined with “respiratory creep” of the heart can introduce false
cooling or affect the appearance of defects and thereby impact the diagnostic accuracy of …

The effect of number of iterations and respiratory motion in cardiac SPECT reconstruction with modeling spatial resolution: The hidden danger of canceling artifacts

J Kikut, A Konik, R Lew, F Keating, GO Belisle… - 2012 - Soc Nuclear Med
138 Objectives Resolution compensation (RC) through modeling spatial resolution in
iterative reconstruction has been shown to enable a reduction of imaging time/administered …

Estimation and correction of rigid and non-rigid respiratory motion of the heart for SPECT

J Dey, B Feng, KL Johnson… - 2006 IEEE Nuclear …, 2006 - ieeexplore.ieee.org
One of the factors limiting the diagnostic accuracy of cardiac SPECT perfusion imaging is the
respiratory motion of the heart. We present two algorithms for estimating and correcting heart …