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Practical aspects of a data-driven motion correction approach for brain SPECT
2003
IEEE Transactions on Medical Imaging
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Digital and physical phantom experiments were performed to explore practical aspects of this approach. ...
Data-driven detection and correction of motion can be achieved by comparison of acquired data with the forward projections. ...
Braun for their ideas and help in this work. ...
doi:10.1109/tmi.2003.814790
pmid:12872947
fatcat:wwv7tdmipfalblhikcmuxpu5jy
Motion Detection Methods in SPECT – A Review
2017
Bangladesh Journal of Nuclear Medicine
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<p>In SPECT, data acquisition occurs over a relatively long time. During the whole acquisition time the patient must lie still, which is very difficult. ...
These movements cause misalignment of the projection frames and may introduce artifacts. To overcome this, motion detection and correction techniques are applied to improve image quality. ...
Authors performed the digital and physical Hoffman phantom experiments to explore practical aspects of this approach. KJ Lee et al. ...
doi:10.3329/bjnm.v18i1.34936
fatcat:gk3aptnv3vfjhh5pipvffwyjwa
An evaluation of data-driven motion estimation in comparison to the usage of external-surrogates in cardiac SPECT imaging
2013
Physics in Medicine and Biology
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acquired projection data for cardiac SPECT studies. ...
The performance of different cost functions in quantifying consistency with the SPECT projection data in the data-driven schemes was compared for clinically realistic patient motion occurring as discrete ...
Kyme for discussions providing valuable insight into the data-driven algorithm. ...
doi:10.1088/0031-9155/58/21/7625
pmid:24107647
pmcid:PMC4152921
fatcat:jjl3ae23onc7hag6oaigwwvtnm
Technical Pitfalls and Limitations of SPECT/CT
2015
Seminars in nuclear medicine
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If citing, it is advised that you check and use the publisher's definitive version for pagination, volume/issue, and date of publication details. ...
And where the final published version is provided on the Research Portal, if citing you are again advised to check the publisher's website for any subsequent corrections. ...
Although accurate motion correction schemes based on monitoring devices or data-driven approaches become more generally available in future, these will have to prove their merit in the clinical setting ...
doi:10.1053/j.semnuclmed.2015.06.002
pmid:26522394
fatcat:gb7wn4twjrbw7fl6ivq3qkrxem
Hybrid Imaging: Instrumentation and Data Processing
2018
Frontiers in Physics
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and biological information, such as new types of image reconstruction and data correction schemes. ...
This review covers milestones of the development of various hybrid imaging systems for use in clinical practice and small-animal research. ...
Ladefoged for kindly providing us with the image data for Figure 6 and Jun Bao for providing us with the technical specifications of the uMI PET/CT systems. ...
doi:10.3389/fphy.2018.00047
fatcat:zd6zgyynnvgurozph22yadz7ga
The promise of artificial intelligence and deep learning in PET and SPECT imaging
2021
Physica medica (Testo stampato)
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A brief description of deep learning algorithms and the fundamental architectures used for these applications is also provided. ...
Finally, the challenges, opportunities, and barriers to full-scale validation and adoption of AI-based solutions for improvement of image quality and quantitative accuracy of PET and SPECT images in the ...
Acknowledgments This work was supported by the Swiss National Science Foundation under grant SNRF 320030_176052 and the Private Foundation of Geneva University Hospitals under grant RC-06-01. ...
doi:10.1016/j.ejmp.2021.03.008
pmid:33765602
fatcat:onw4fm22y5cxndxiwyy5bdw4t4
Attenuation correction in cardiac positron emission tomography and single-photon emission computed tomography
1995
Journal of Nuclear Cardiology
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One of the most important of these corrections is the correction for attenuation. For PET, cardiac attenuation correction is a reality, although certain problems remain to be solved. ...
B a c h a r a c h , PhD, a n d lr~ne Buvat, P h D Quantitation in cardiac positron emission tomography (PET) and single-photon emission computed tomography (SPECT) depends on being able to correct for ...
USE OF THE ATTENUATION MAP TO CORRECT THE EMISSION DATA In PET the acquisition of a reliable transmission map makes an accurate attenuation correction possible (ignoring practical issues such as motion ...
doi:10.1016/s1071-3581(05)80062-5
pmid:9420795
fatcat:br7yjnnslvdqniktjnfzfmiodi
MULTIMODALITY IN VIVO IMAGING SYSTEMS: Twice the Power or Double the Trouble?
2006
Annual Review of Biomedical Engineering
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, therapeutic monitoring, and preclinical research using imaging approaches. ...
): a nuclear imaging technique that utilizes a gamma camera and a collimator to record images of the distribution of radiolabeled molecules in vivo Positron emission tomography (PET): a nuclear imaging ...
Clearly, motion correction at all levels remains a critical area of research for multimodality PET/CT and SPECT/CT imaging. ...
doi:10.1146/annurev.bioeng.8.061505.095728
pmid:16834551
fatcat:txbkctpnenhgdfaoxczh7trzq4
Advances in Preclinical SPECT Instrumentation
2012
Journal of Nuclear Medicine
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Preclinical SPECT of rodents is both in demand and very demanding. ...
The need for high spatial resolution in combination with good sensitivity has given rise to considerable innovation in the areas of detectors, collimation, acquisition geometry, and image reconstruction ...
No other potential conflict of interest relevant to this article was reported. ...
doi:10.2967/jnumed.111.099853
pmid:22586145
pmcid:PMC3422073
fatcat:ednfytdbxrcpflm7xv53l75dai
The Legacy of the TTASAAN Report – Premature Conclusions and Forgotten Promises About SPECT Neuroimaging: A Review of Policy and Practice Part II
2022
Frontiers in Neurology
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Lastly, recommendations for the revision of current policies and practices are made. ...
In Part I, the comparison between the quality of the SPECT scans and the depth of the data for key neurological and psychiatric indications at the time of the TTASAAN report vs. the intervening 25 years ...
We also acknowledge Taylor Tuteur for graphic art. We acknowledge Alaina M. Henderson for graphic art and assistance with the preparation of the figures. ...
doi:10.3389/fneur.2022.851609
pmid:35655621
pmcid:PMC9152128
fatcat:ngrzitmz4fadplgq7nh4gflyo4
Attenuation correction in emission tomography using the emission data-A review
2016
Medical Physics (Lancaster)
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In summary, developments using time-of-flight (TOF) PET emission data for AC have shown promising advances and open a wide range of applications. ...
The problem of attenuation correction (AC) for quantitative positron emission tomography (PET) had been considered solved to a large extent after the commercial availability of devices combining PET with ...
including the effect of scattering. 232 A rather empirical approach of finding ACF for SPECT has been described in Ref. 233 , using Fourier decomposition of the sinogram of ACF and optimization driven ...
doi:10.1118/1.4938264
pmid:26843243
pmcid:PMC4715007
fatcat:7oqbi5ttpvblbmmlzi7t5dgjqm
The future of hybrid imaging—part 3: PET/MR, small-animal imaging and beyond
2011
Insights into Imaging
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This review summarises in three parts the state of the art of dual-technique imaging with a focus on clinical applications. ...
Since the 1990s, hybrid imaging by means of software and hardware image fusion alike allows the intrinsic combination of functional and anatomical image information. ...
Open Access This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided ...
doi:10.1007/s13244-011-0085-4
pmid:22347950
pmcid:PMC3270262
fatcat:nvslvvidurhitldf4auma5vzxm
What scans we will read: imaging instrumentation trends in clinical oncology
2020
Cancer Imaging
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Oncological diseases account for a significant portion of the burden on public healthcare systems with associated costs driven primarily by complex and long-lasting therapies. ...
To this end, we should accept diagnostic images as "data", and - through the wider adoption of advanced analysis, including machine learning approaches and a "big data" concept - move to the next stage ...
Motion compensation Data-driven gating (DDG) techniques have been introduced to address patient motion induced image blur [38] . ...
doi:10.1186/s40644-020-00312-3
pmid:32517801
fatcat:jbfxzyffg5cqhkpkshnhpuoabu
A review of cardiac image registration methods
2002
IEEE Transactions on Medical Imaging
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Registration of cardiac images is a more complex problem than brain image registration because the heart is a nonrigid moving organ inside a moving body. ...
and ultrasound, is of increasing interest in the medical community for physiologic understanding and diagnostic purposes. ...
ACKNOWLEDGMENT The authors are grateful to the anonymous reviewers for their suggestions to improve this paper. ...
doi:10.1109/tmi.2002.804441
pmid:12564869
fatcat:z6dx2vukqjbiplv6k5v4uz3xdq
A review of partial volume correction techniques for emission tomography and their applications in neurology, cardiology and oncology
2012
Physics in Medicine and Biology
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Accurate quantification in PET and SPECT requires correction for a number of physical factors, such as photon attenuation, Compton scattering and random coincidences (in PET). ...
The purpose of this paper is to enhance understanding of PVEs and to review possible approaches for PVC. ...
Acknowledgments We want to thank Susan Landau and William Jagust (Jagust Lab, University of California, Berkeley) for kindly providing data for one of the clinical examples. ...
doi:10.1088/0031-9155/57/21/r119
pmid:23073343
fatcat:zumt2lualjhrnlirtw2okjzf6e
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