PMID- 36292217 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221030 IS - 2075-4418 (Print) IS - 2075-4418 (Electronic) IS - 2075-4418 (Linking) VI - 12 IP - 10 DP - 2022 Oct 18 TI - An Innovative Concept of a 3D-Coded Aperture Imaging System Proposed for Early Breast Cancer Detection. LID - 10.3390/diagnostics12102529 [doi] LID - 2529 AB - Coded Aperture (CA) imaging has recently been used in nuclear medicine, but still, there is no commercial SPECT imaging camera based on CA for cancer detection. The literature is rich in examples of using the CA for planar and thin 3D imaging. However, thick 3D reconstruction is still challenging for small lesion detection. This paper presents the results of mosaic modified uniformly redundant array (MURA) mask/antimask CA combined with a maximum-likelihood expectation-maximization (MLEM) algorithm. The MLEM is an iterative algorithm applied to a mosaic MURA CA mask/antimask for 3D anthropomorphic breast phantom reconstruction, slice by slice. The difference between the mask and the antimask suppresses the background noise to enhance the quality of reconstructed images. Furthermore, all reconstructed slices are stacked to form a 3D breast phantom image from single-projection data. The results of phantom reconstruction with 8 mm, 6 mm, 4 mm, and 3 mm lesions are presented. Moreover, the proposed SPECT imaging camera can reconstruct a 3D breast phantom from single-projection data of the patient's scanning. To assess the quality of lesions in the reconstructed images, the contrast-to-background ratio (CBR), the peak signal-to-noise ratio (PSNR) and mean square error (MSE) were measured. FAU - Hussain, Khalid AU - Hussain K AUID- ORCID: 0000-0001-7967-7230 AD - Department of Computer and Communication System Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia. FAU - Alnafea, Mohammed A AU - Alnafea MA AUID- ORCID: 0000-0003-3512-6220 AD - Department of Radiological Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia. FAU - Saripan, M Iqbal AU - Saripan MI AD - Department of Computer and Communication System Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia. FAU - Mahboub, Djelloul AU - Mahboub D AD - Physics Department, University of Hail, Ha'il 81451, Saudi Arabia. FAU - Mahmud, Rozi AU - Mahmud R AD - Faculty of Medicine and Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia. FAU - Wan Adnan, Wan Azizun AU - Wan Adnan WA AD - Department of Computer and Communication System Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia. FAU - Xianling, Dong AU - Xianling D AUID- ORCID: 0000-0001-8572-2632 AD - Department of Biomedical Engineering, Chengde Medical University, Chengde City 067050, China. LA - eng GR - xxxxx/Universiti Putra Malaysia/ GR - No.5-1/HRD/UESTPI(Batch-V)/1147/2018/HEC/Higher Education Commission/ PT - Journal Article DEP - 20221018 PL - Switzerland TA - Diagnostics (Basel) JT - Diagnostics (Basel, Switzerland) JID - 101658402 PMC - PMC9601382 OTO - NOTNLM OT - 3D image reconstruction OT - anthropomorphic breast phantom OT - coded-aperture imaging OT - gamma camera OT - mask/antimask OT - mosaic MURA mask COIS- The authors declare no conflict of interest. EDAT- 2022/10/28 06:00 MHDA- 2022/10/28 06:01 PMCR- 2022/10/18 CRDT- 2022/10/27 01:16 PHST- 2022/07/25 00:00 [received] PHST- 2022/09/03 00:00 [revised] PHST- 2022/09/12 00:00 [accepted] PHST- 2022/10/27 01:16 [entrez] PHST- 2022/10/28 06:00 [pubmed] PHST- 2022/10/28 06:01 [medline] PHST- 2022/10/18 00:00 [pmc-release] AID - diagnostics12102529 [pii] AID - diagnostics-12-02529 [pii] AID - 10.3390/diagnostics12102529 [doi] PST - epublish SO - Diagnostics (Basel). 2022 Oct 18;12(10):2529. doi: 10.3390/diagnostics12102529.