Improving detection accuracy of perfusion defect in standard dose SPECT-myocardial perfusion imaging by deep-learning denoising.
Improving detection accuracy of perfusion defect in standard dose SPECT-myocardial perfusion imaging by deep-learning denoising.
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DOI:
10.1007/s12350-021-02676-w
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发表时间:
2022-10
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We previously developed a deep-learning (DL) network for image denoising in SPECT-myocardial perfusion imaging (MPI). Here we investigate whether this DL network can be utilized for improving detection of perfusion defects in standard-dose clinical acquisitions. To quantify perfusion-defect detection accuracy, we conducted a receiver-operating characteristic (ROC) analysis on reconstructed images with and without processing by the DL network using a set of clinical SPECT-MPI data from 190 subjects. For perfusion-defect detection hybrid studies were used as ground truth, which were created from clinically normal studies with simulated realistic lesions inserted. We considered ordered-subsets expectation-maximization (OSEM) reconstruction with corrections for attenuation, resolution, and scatter and with 3D Gaussian post-filtering. Total perfusion deficit (TPD) scores, computed by Quantitative Perfusion SPECT (QPS) software, were used to evaluate the reconstructed images. Compared to reconstruction with optimal Gaussian post-filtering (sigma=1.2 voxels), further DL denoising increased the area-under-the-ROC-curve (AUC) from 0.80 to 0.88 (p-value < 10−4). For reconstruction with less Gaussian post-filtering (sigma=0.8 voxels), thus better spatial resolution, DL denoising increased the AUC value from 0.78 to 0.86 (p-value < 10−4) and achieved better spatial resolution in reconstruction. DL denoising can effectively improve the detection of abnormal defects in standard-dose SPECT-MPI images over conventional reconstruction.
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影响因子:
2.4
作者:
Slomka, PJ;Nishina, H;Germano, G
通讯作者:
Germano, G
影响因子:
10.6
作者:
OGAWA, K;HARATA, Y;HASHIMOTO, S
通讯作者:
HASHIMOTO, S
影响因子:
3.9
作者:
Liu H;Wang K;Tian J
通讯作者:
Tian J
影响因子:
9.3
作者:
Arsanjani, Reza;Xu, Yuan;Slomka, Piotr
通讯作者:
Slomka, Piotr
DOI:
10.1007/s12350-017-0920-1
发表时间:
2018-12
期刊:
Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
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