A feasibility study of joint respiratory and cardiac motion correction for coronary PET/CT imaging

Ambwani, Sonal; Cho, Sang‐Hee; Karl, W.C.; Tawakol, Ahmed; Pien, Homer

doi:10.1109/isbi.2009.5193207

Cited by 5 publications

(14 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In dual cardiac-respiratory binned imaging, the data acquisition is synchronized with both the electrocardiogram (ECG) signal and the respiratory cycles [23], [24]. Accordingly, the acquired data can be re-binned for different cardiac sub-intervals and respiratory magnitude intervals.…”

Section: D Cardiac-respiratory Reconstructionmentioning

confidence: 99%

See 1 more Smart Citation

4-D Reconstruction With Respiratory Correction for Gated Myocardial Perfusion SPECT

Yang

Song

et al. 2017

IEEE Trans. Med. Imaging

View full text Add to dashboard Cite

Cardiac SPECT images are known to suffer from both cardiac and respiratory motion blur. In this work, we investigate a 4D reconstruction approach to suppress the effect of respiratory motion in gated cardiac SPECT imaging. In this approach, the sequence of cardiac gated images is reconstructed with respect to a reference respiratory amplitude bin in the respiratory cycle. To combat the challenge of inherent high imaging noise, we utilize the data counts acquired during the entire respiratory cycle by making use of a motion-compensated scheme, in which both cardiac motion and respiratory motion are taken into account. In our evaluation study, we first use Monte Carlo simulated imaging data wherein the ground truth is known for quantitative comparison. We then demonstrate the proposed approach on eight sets of clinical acquisitions, in which the subjects exhibit different degrees of respiratory motion blur. The quantitative evaluation results show that 4D reconstruction with respiratory correction could effectively reduce the effect of motion blur and lead to a more accurate reconstruction of the myocardium. The mean-squared-error of the myocardium is reduced by 22%, and the LV resolution is improved by 21%. Such improvement is also demonstrated with the clinical acquisitions, where the motion blur is markedly improved in the reconstructed LV wall and blood pool. The proposed approach is also noted to be effective on correcting the spill-over effect in the myocardium from nearby bowel or liver activities.

show abstract

Section: D Cardiac-respiratory Reconstructionmentioning

confidence: 99%

“…We note that dual gating has been studied for correction of respiratory motion in other modalities such as PET or PET/CT [23], [24], [25], [26]. For example, in [27], both cardiac and respiratory gating was used in cardiac PET imaging and was found to improve the anatomical details of the heart in reconstruction.…”

Section: Introductionmentioning

confidence: 99%

4-D Reconstruction With Respiratory Correction for Gated Myocardial Perfusion SPECT

Yang

Song

et al. 2017

IEEE Trans. Med. Imaging

View full text Add to dashboard Cite

show abstract

“…In dual gated imaging, the data acquisition is synchronized with both the ECG signal and the respiratory period [13,14]. Accordingly, the acquired data can be re-binned for different respiratory and cardiac phases.…”

Section: Spect Imaging Model With Dual Gatingmentioning

confidence: 99%

“…We note that respiratory gating has been studied for correction of respiratory motion in other modalities such as PET or PET/CT [13,14]. However, to our best knowledge, the proposed joint reconstruction approach has not been previously exploited in SPECT, largely due to the challenge of significantly lowered data counts associated with both cardiac and respiratory gating.…”

Section: Introductionmentioning

confidence: 99%

4D reconstruction for dual cardiac-respiratory gated SPECT

Yang

Wernick

et al. 2013

2013 IEEE International Conference on Image Processing

View full text Add to dashboard Cite

Cardiac gated SPECT is an important clinical tool for assessment of both myocardial perfusion and ventricular function. Spatiotemporal (aka 4D) reconstruction has been demonstrated to be effective for suppressing the increased noise in cardiac gated SPECT. In this work, we propose a joint 4D reconstruction approach to accommodate the different respiratory phases in a dual cardiac-respiratory gating scheme in order to combat the artifacts of respiratory motion in cardiac SPECT. The proposed approach is to exploit the correlation in the signal component among both the cardiac and respiratory phases in the acquired data. In our experiments we evaluated the approach using simulated SPECT imaging with the 4D NCAT phantom and Tc99m labeled Sestamibi as the imaging agent. Our results demonstrate that the proposed approach could effectively suppress the artifacts caused by respiratory motion in the reconstruction.

show abstract

“…These methods are suitable for motion correction of objects with little deformation. There are various non-rigid motion correction methods studied such as the optical flow algorithm [13,14,15], the elastic transformations [16], MRI-based correction methods [17,18] and cardiac shape tracking [19]. However, none of these techniques have utilised the dual gating in PET data processing.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of motion-correction methods for dual-gated cardiac positron emission tomography/computed tomography imaging

Клен

Noponen

Koikkalainen

et al. 2016

Nuclear Medicine Communications

View full text Add to dashboard Cite

show abstract

A feasibility study of joint respiratory and cardiac motion correction for coronary PET/CT imaging

Cited by 5 publications

References 11 publications

4-D Reconstruction With Respiratory Correction for Gated Myocardial Perfusion SPECT

4-D Reconstruction With Respiratory Correction for Gated Myocardial Perfusion SPECT

4D reconstruction for dual cardiac-respiratory gated SPECT

Evaluation of motion-correction methods for dual-gated cardiac positron emission tomography/computed tomography imaging

Contact Info

Product

Resources

About