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Zhang T, Liao J, Zhang Y, Huang Z, Li C. Robust Ultrafast Projection Pipeline for Structural and Angiography Imaging of Fourier-Domain Optical Coherence Tomography. Diagnostics (Basel) 2024; 14:1509. [PMID: 39061645 PMCID: PMC11275292 DOI: 10.3390/diagnostics14141509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
The current methods to generate projections for structural and angiography imaging of Fourier-Domain optical coherence tomography (FD-OCT) are significantly slow for prediagnosis improvement, prognosis, real-time surgery guidance, treatments, and lesion boundary definition. This study introduced a robust ultrafast projection pipeline (RUPP) and aimed to develop and evaluate the efficacy of RUPP. RUPP processes raw interference signals to generate structural projections without the need for Fourier Transform. Various angiography reconstruction algorithms were utilized for efficient projections. Traditional methods were compared to RUPP using PSNR, SSIM, and processing time as evaluation metrics. The study used 22 datasets (hand skin: 9; labial mucosa: 13) from 8 volunteers, acquired with a swept-source optical coherence tomography system. RUPP significantly outperformed traditional methods in processing time, requiring only 0.040 s for structural projections, which is 27 times faster than traditional summation projections. For angiography projections, the best RUPP variation took 0.15 s, making it 7518 times faster than the windowed eigen decomposition method. However, PSNR decreased by 41-45% and SSIM saw reductions of 25-74%. RUPP demonstrated remarkable speed improvements over traditional methods, indicating its potential for real-time structural and angiography projections in FD-OCT, thereby enhancing clinical prediagnosis, prognosis, surgery guidance, and treatment efficacy.
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Affiliation(s)
| | | | | | | | - Chunhui Li
- Centre for Medical Engineering and Technology (CMET), School of Science and Engineering, University of Dundee, Dundee DD1 4HN, UK; (T.Z.); (J.L.); (Y.Z.); (Z.H.)
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2
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Bakhoum CY, Madala S, Lando L, Yarmohammadi A, Long CP, Miguez S, Chan AX, Singer M, Jin A, Steren BJ, Adabifirouzjaei F, Goldbaum MH, DeMaria AN, Sarraf D, Bakhoum MF. Retinal Ischemic Perivascular Lesions in Individuals With Atrial Fibrillation. J Am Heart Assoc 2023; 12:e028853. [PMID: 37577936 PMCID: PMC10492933 DOI: 10.1161/jaha.122.028853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 06/12/2023] [Indexed: 08/15/2023]
Abstract
Background We previously demonstrated that retinal ischemic perivascular lesions (RIPLs), which are indicative of ischemia in the middle retina, may be a biomarker of ischemic cardiovascular disease. In this study, we sought to determine the relationship between RIPLs and atrial fibrillation, a common source of cardiac emboli. Methods and Results In this case-control study, we identified individuals between the ages of 50 and 90 years who had undergone macular spectral domain optical coherence tomography imaging. Individuals with atrial fibrillation were identified, and age- and sex-matched individuals from the same pool, but without a diagnosis of atrial fibrillation, were selected as controls. Spectral domain optical coherence tomography scans were reviewed by 3 independent and masked observers for presence of RIPLs. The relationship between RIPLs and atrial fibrillation was analyzed using multivariable logistic regression models. There were 106 and 91 subjects with and without atrial fibrillation, respectively. The percentage of subjects with RIPLs was higher in the atrial fibrillation group compared with the control group (57.5% versus 37.4%; P=0.005). After adjusting for age, sex, smoking history, hypertension, diabetes, coronary artery disease, carotid stenosis, stroke, and myocardial infarction, the presence of RIPLs was significantly associated with atrial fibrillation, with an odds ratio of 1.91 (95% CI, 1.01-3.59). Conclusions RIPLs are significantly associated with atrial fibrillation, independent of underlying ischemic heart disease or cardiovascular risk factors. This association may inform the diagnostic cardiovascular workup for individuals with RIPLs incidentally detected on optical coherence tomography scan of the macula.
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Affiliation(s)
- Christine Y. Bakhoum
- Section of Nephrology, Department of PediatricsYale University School of MedicineNew HavenCTUSA
- Clinical and Translational Research Accelerator, Department of MedicineYale University School of MedicineNew HavenCTUSA
| | - Samantha Madala
- Department of OphthalmologyUniversity of Southern CaliforniaLos AngelesCAUSA
| | - Leonardo Lando
- Department of Ophthalmology and Visual SciencesUniversity of TorontoOntarioCanada
- Ocular Oncology ServiceBarretos Cancer HospitalBarretosBrazil
| | | | - Christopher P. Long
- Department of OphthalmologyUniversity of Southern CaliforniaLos AngelesCAUSA
| | - Sofia Miguez
- Department of Ophthalmology and Visual ScienceYale University School of MedicineNew HavenCTUSA
| | - Alison X. Chan
- Department of OphthalmologyUniversity of California San DiegoLa JollaCAUSA
| | - Maxwell Singer
- Department of Ophthalmology and Visual ScienceYale University School of MedicineNew HavenCTUSA
| | - Andrew Jin
- Department of Ophthalmology and Visual ScienceYale University School of MedicineNew HavenCTUSA
| | - Ben J. Steren
- Department of Ophthalmology and Visual ScienceYale University School of MedicineNew HavenCTUSA
| | - Fatemeh Adabifirouzjaei
- Division of Cardiology, Department of MedicineSulpizio Cardiovascular Center, University of California, San DiegoLa JollaCAUSA
| | | | - Anthony N. DeMaria
- Division of Cardiology, Department of MedicineSulpizio Cardiovascular Center, University of California, San DiegoLa JollaCAUSA
| | - David Sarraf
- Department of OphthalmologyUniversity of California Los AngelesLos AngelesCAUSA
| | - Mathieu F. Bakhoum
- Department of Ophthalmology and Visual ScienceYale University School of MedicineNew HavenCTUSA
- Department of PathologyYale University School of MedicineNew HavenCTUSA
- Yale Cancer CenterYale UniversityNew HavenCTUSA
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3
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Mishra P, Mohanty S, P S, Moharana B, Das D. Paracentral Acute Middle Maculopathy As the Presenting Sign of Ischemic Cardiomyopathy. Cureus 2023; 15:e35418. [PMID: 36994255 PMCID: PMC10042500 DOI: 10.7759/cureus.35418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2023] [Indexed: 03/31/2023] Open
Abstract
Paracentral acute middle maculopathy (PAMM) is a type of ischemic maculopathy affecting intermediate and deep retinal capillary plexuses. A typical presentation is acute onset scotoma with or without vision loss. It is characterized by greyish-white parafoveal lesions. Sometimes very subtle lesions can be missed on clinical examination. The main diagnostic modality is spectral domain optical coherence tomography (SD-OCT) wherein focal or multifocal lesions are seen as bands of hyperreflectivity in the inner nuclear and outer plexiform layers. This entity can be associated with systemic microvascular diseases. Here, we report an interesting case of PAMM as the only presenting sign in a patient with ischemic cardiomyopathy, highlighting the necessity for a thorough systemic examination in such patients.
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Affiliation(s)
| | - Satyapriya Mohanty
- Cardiothoracic Surgery, All India Institute of Medical Sciences, Bhubaneswar, IND
| | - Shanmugasundaram P
- Ophthalmology, All India Institute of Medical Sciences, Bhubaneswar, IND
| | - Bruttendu Moharana
- Ophthalmology, All India Institute of Medical Sciences, Bhubaneswar, IND
| | - Debasish Das
- Cardiology, All India Institute of Medical Sciences, Bhubaneswar, IND
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4
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Antaki F, Milad D, Hamel T. Acute retinal ischaemia associated with paracentral acute middle maculopathy detected on multimodal imaging: a premonitory sign of severe carotid occlusive disease. BMJ Case Rep 2022; 15:e252266. [PMID: 36442909 PMCID: PMC9710327 DOI: 10.1136/bcr-2022-252266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
A man in his 60s presented with a subacute paracentral scotoma and preserved visual acuity in the left eye. He was found to have a very subtle area of deep retinal whitening at the macula and multiple retinal cholesterol emboli. Optical coherence tomography (OCT) with En face imaging revealed globular paracentral acute middle maculopathy (PAMM). A diagnosis of PAMM associated with branch artery occlusion was made and the patient was immediately transferred to the nearest stroke centre. Investigations revealed severe carotid occlusive disease for which the patient underwent carotid endarterectomy. Paracentral scotomas in patients with little clinical findings on fundus examination should raise the suspicion for PAMM, which is easily identifiable on OCT. Eye care professionals must recognise PAMM as a possible sign of acute retinal arterial ischaemia-an ocular and systemic emergency that requires immediate referral to specialised stroke centres.
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Affiliation(s)
- Fares Antaki
- Department of Ophthalmology, Université de Montréal, Montréal, Québec, Canada
- Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Daniel Milad
- Department of Ophthalmology, Université de Montréal, Montréal, Québec, Canada
- Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Thierry Hamel
- Clinique d'Ophthalmologie Brome-Missisquoi, Cowansville, Québec, Canada
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Papasavvas I, Herbort CP. A Case of Paracentral Acute Middle Maculopathy (PAMM) Associated with Cilioretinal Artery Occlusion. The Contribution of OCT-A to the Understanding of PAMM's Pathophysiology. Klin Monbl Augenheilkd 2022; 239:552-555. [PMID: 35472804 DOI: 10.1055/a-1785-4396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ioannis Papasavvas
- Retinal and Inflammatory Eye Diseases, Centre for Ophthalmic Specialized Care (COS), Clinic Montchoisi Teaching Centre, Lausanne, Switzerland
| | - Carl P Herbort
- Retinal and Inflammatory Eye Diseases, Centre for Ophthalmic Specialized Care (COS), Clinic Montchoisi Teaching Centre, Lausanne, Switzerland
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6
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Antaki F, Milad D, Sahyoun JY, Coussa RG. Paracentral acute middle maculopathy in non-ischaemic central retinal vein occlusion: the role of en face optical coherence tomography. BMJ Case Rep 2021; 14:e246842. [PMID: 34764101 PMCID: PMC8587704 DOI: 10.1136/bcr-2021-246842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2021] [Indexed: 11/04/2022] Open
Affiliation(s)
- Fares Antaki
- Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Daniel Milad
- Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Jean-Yves Sahyoun
- Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Razek Georges Coussa
- Department of Ophthalmology and Visual Sciences, The University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
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Duan J, Li M, Wu Z, Zhang Z. Total venous nature of retinal deep capillary plexus inferred by continuity of prominent middle limiting membrane sign in optical coherence tomography. PLoS One 2021; 16:e0257698. [PMID: 34547044 PMCID: PMC8454985 DOI: 10.1371/journal.pone.0257698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/07/2021] [Indexed: 11/21/2022] Open
Abstract
This study aimed to theoretically identify the vascular nature of the deep capillary plexus (DCP) by examining patients presenting with both paracentral acute middle maculopathy (PAMM) and prominent middle limiting membrane (p-MLM) sign and p-MLM sign alone in spectral-domain optical coherence tomography (SD-OCT). A retrospective review of the medical records of patients with retinal vein or artery occlusion from two tertiary medical centers was performed. Consecutive patients with a clinical diagnosis of all categories of retinal artery occlusion (RAO) and retinal vein occlusion (RVO) (branch or central and ischemic or non-ischemic) who had undergone SD-OCT imaging from January 2015 to May 2020 were recruited and their p-MLM signs and PAMM lesions were assessed. We included 118 patients who presented with p-MLM sign with or without PAMM lesions. Amon them, 40 were female and 78 were male, with a mean age of 61.1 years. Of the 109 patients with both p-MLM sign and PAMM lesions, 23 had branch RAO, two had branch RVO, 67 had central RAO, 13 had central RVO, and four had a combination of central RAO and central RVO. All nine patients with the p-MLM sign alone had central RVO accompanied by cystoid macular edema. In all the enrolled patients, the hyperreflective lines of the p-MLM sign were continuous, regardless of the type of PAMM lesions. In conclusion, when PAMM and p-MLM sign are examined together, further proof regarding the possible complete venous nature of the vasculature of the retinal DCP might be speculated.
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Affiliation(s)
- Jialiang Duan
- Department of Ophthalmology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
| | - Minhao Li
- Department of Ophthalmology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
| | - Zhifeng Wu
- Department of Ophthalmology, Affiliated Wuxi Clinical College of Nantong University, Wuxi, Jiangsu Province, People’s Republic of China
- Department of Ophthalmology, The Affiliated Wuxi No.2 People’s Hospital of Nanjing Medical University, Wuxi, Jiangsu Province, People’s Republic of China
| | - Zhengwei Zhang
- Department of Ophthalmology, Affiliated Wuxi Clinical College of Nantong University, Wuxi, Jiangsu Province, People’s Republic of China
- Department of Ophthalmology, The Affiliated Wuxi No.2 People’s Hospital of Nanjing Medical University, Wuxi, Jiangsu Province, People’s Republic of China
- * E-mail:
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Naughton A, Ong AY, Gkika T, Downes S. Bilateral paracentral acute middle maculopathy in a SARS-CoV-2-positive patient. Postgrad Med J 2021; 98:e105-e106. [PMID: 37066542 DOI: 10.1136/postgradmedj-2021-140500] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 06/13/2021] [Indexed: 11/04/2022]
Affiliation(s)
- Aoife Naughton
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Ariel Yuhan Ong
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Theodora Gkika
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Susan Downes
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK
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