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Ward NC, Ying Q, Chan DC, Pang J, Mori TA, Schultz CJ, Dwivedi G, Francis RJ, Watts GF. Improved arterial inflammation with high dose omega-3 fatty acids in patients with elevated lipoprotein(a): Selective effect of eicosapentaenoic acid? J Clin Lipidol 2023; 17:694-699. [PMID: 37598001 DOI: 10.1016/j.jacl.2023.08.004] [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] [Received: 06/26/2023] [Revised: 07/29/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023]
Abstract
Elevated lipoprotein(a) [Lp(a)] is a causal risk factor for atherosclerotic cardiovascular disease. However, there are no approved and effective treatments for lowering Lp(a) and the associated cardiovascular risks. Omega-3 fatty acids (ω-3FAs), primarily eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have both triglyceride-lowering and anti-inflammatory properties. This pilot study investigated the effect of high dose ω-3FAs (3.6 g/day) on arterial inflammation in 12 patients with elevated Lp(a) (> 0.5 g/L) and stable coronary artery disease (CAD) receiving cholesterol-lowering treatment. Arterial inflammation was determined using 18F-fluorodexoyglucose positron emission tomography/computed tomography before and after 12-weeks intervention. ω-3FAs significantly lowered plasma concentrations of triglycerides (-17%, p < 0.01), Lp(a) (-5%, p < 0.01) as well as aortic maximum standardized uptake value (SUVmax) (-4%, p < 0.05). The reduction in SUVmax was significantly inversely associated with average on-treatment EPA (r = -0.750, p < 0.01), but not DHA and triglyceride, concentrations. In conclusion, high dose ω-3FAs decrease arterial inflammation in patients with elevated Lp(a) and stable CAD, which may involve a direct arterial effect of EPA.
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Affiliation(s)
- Natalie C Ward
- Dobney Hypertension Centre, Medical School, University of Western Australia, Perth, Australia
| | - Qidi Ying
- Medical School, University of Western Australia, Perth, Australia
| | - Dick C Chan
- Medical School, University of Western Australia, Perth, Australia
| | - Jing Pang
- Medical School, University of Western Australia, Perth, Australia
| | - Trevor A Mori
- Medical School, University of Western Australia, Perth, Australia
| | - Carl J Schultz
- Medical School, University of Western Australia, Perth, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Girish Dwivedi
- Medical School, University of Western Australia, Perth, Australia; Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Perth, Australia
| | - Roslyn J Francis
- Medical School, University of Western Australia, Perth, Australia; Department of Nuclear Medicine, Sir Charles Gardner Hospital, Perth, Australia
| | - Gerald F Watts
- Medical School, University of Western Australia, Perth, Australia; Cardiometabolic Clinic, Department of Cardiology, Royal Perth Hospital, Perth, Australia.
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2
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Aghayev A, Steigner ML, Azene EM, Burns J, Chareonthaitawee P, Desjardins B, El Khouli RH, Grayson PC, Hedgire SS, Kalva SP, Ledbetter LN, Lee YJ, Mauro DM, Pelaez A, Pillai AK, Singh N, Suranyi PS, Verma N, Williamson EE, Dill KE. ACR Appropriateness Criteria® Noncerebral Vasculitis. J Am Coll Radiol 2021; 18:S380-S393. [PMID: 34794595 DOI: 10.1016/j.jacr.2021.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 10/19/2022]
Abstract
Noncerebral vasculitis is a wide-range noninfectious inflammatory disorder affecting the vessels. Vasculitides have been categorized based on the vessel size, such as large-vessel vasculitis, medium-vessel vasculitis, and small-vessel vasculitis. In this document, we cover large-vessel vasculitis and medium-vessel vasculitis. Due to the challenges of vessel biopsy, imaging plays a crucial role in diagnosing this entity. While CTA and MRA can both provide anatomical details of the vessel wall, including wall thickness and enhancement in large-vessel vasculitis, FDG-PET/CT can show functional assessment based on the glycolytic activity of inflammatory cells in the inflamed vessels. Given the size of the vessel in medium-vessel vasculitis, invasive arteriography is still a choice for imaging. However, high-resolution CTA images can depict small-caliber aneurysms, and thus can be utilized in the diagnosis of medium-vessel vasculitis. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
- Ayaz Aghayev
- Panel Vice-Chair, Brigham & Women's Hospital, Boston, Massachusetts.
| | - Michael L Steigner
- Panel Chair; and Vascular CT and MR, and Medical Director 3D Lab, Brigham & Women's Hospital, Boston, Massachusetts
| | | | - Judah Burns
- Program Director, Diagnostic Radiology Residency Program, Montefiore Medical Center, Bronx, New York
| | | | | | - Riham H El Khouli
- Director, Theranostic Program and Chair, NM&MI Clinical Protocol and Quality Improvement (CPQI) Committee, University of Kentucky, Lexington, Kentucky
| | - Peter C Grayson
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, Rheumatologist
| | - Sandeep S Hedgire
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Sanjeeva P Kalva
- Chief, Interventional Radiology, Massachusetts General Hospital, Boston, Massachusetts; International Editor, Journal of Clinical Interventional Radiology ISVIR; and Assistant Editor, Radiology - Cardiothoracic, RSNA
| | - Luke N Ledbetter
- Director, Head and Neck Imaging, University of California Los Angeles, Los Angeles, California
| | - Yoo Jin Lee
- University of California San Francisco, San Francisco, California
| | - David M Mauro
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Andres Pelaez
- Director, Lung Transplant Program, University of Florida Gainesville, Gainesville, Florida; and Primary care physician
| | - Anil K Pillai
- Section Chief, UT Southwestern Medical Center, Dallas, Texas
| | | | - Pal S Suranyi
- Medical University of South Carolina, Charleston, South Carolina
| | - Nupur Verma
- Program Director, Department of Radiology, University of Florida, Gainesville, Florida
| | - Eric E Williamson
- Mayo Clinic, Rochester, New York, Society of Cardiovascular Computed Tomography
| | - Karin E Dill
- Specialty Chair, Emory University Hospital, Atlanta, Georgia
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3
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Chaudhari AS, Mittra E, Davidzon GA, Gulaka P, Gandhi H, Brown A, Zhang T, Srinivas S, Gong E, Zaharchuk G, Jadvar H. Low-count whole-body PET with deep learning in a multicenter and externally validated study. NPJ Digit Med 2021; 4:127. [PMID: 34426629 PMCID: PMC8382711 DOI: 10.1038/s41746-021-00497-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 08/03/2021] [Indexed: 02/08/2023] Open
Abstract
More widespread use of positron emission tomography (PET) imaging is limited by its high cost and radiation dose. Reductions in PET scan time or radiotracer dosage typically degrade diagnostic image quality (DIQ). Deep-learning-based reconstruction may improve DIQ, but such methods have not been clinically evaluated in a realistic multicenter, multivendor environment. In this study, we evaluated the performance and generalizability of a deep-learning-based image-quality enhancement algorithm applied to fourfold reduced-count whole-body PET in a realistic clinical oncologic imaging environment with multiple blinded readers, institutions, and scanner types. We demonstrate that the low-count-enhanced scans were noninferior to the standard scans in DIQ (p < 0.05) and overall diagnostic confidence (p < 0.001) independent of the underlying PET scanner used. Lesion detection for the low-count-enhanced scans had a high patient-level sensitivity of 0.94 (0.83-0.99) and specificity of 0.98 (0.95-0.99). Interscan kappa agreement of 0.85 was comparable to intrareader (0.88) and pairwise inter-reader agreements (maximum of 0.72). SUV quantification was comparable in the reference regions and lesions (lowest p-value=0.59) and had high correlation (lowest CCC = 0.94). Thus, we demonstrated that deep learning can be used to restore diagnostic image quality and maintain SUV accuracy for fourfold reduced-count PET scans, with interscan variations in lesion depiction, lower than intra- and interreader variations. This method generalized to an external validation set of clinical patients from multiple institutions and scanner types. Overall, this method may enable either dose or exam-duration reduction, increasing safety and lowering the cost of PET imaging.
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Affiliation(s)
- Akshay S Chaudhari
- Department of Radiology, Stanford University, Palo Alto, CA, USA.
- Department of Biomedical Data Science, Stanford University, Stanford, CA, USA.
- Subtle Medical, Menlo Park, CA, USA.
| | - Erik Mittra
- Division of Diagnostic Radiology, Oregon Health & Science University, Portland, OR, USA
| | - Guido A Davidzon
- Department of Radiology, Stanford University, Palo Alto, CA, USA
| | | | | | - Adam Brown
- Division of Diagnostic Radiology, Oregon Health & Science University, Portland, OR, USA
| | | | - Shyam Srinivas
- Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Greg Zaharchuk
- Department of Radiology, Stanford University, Palo Alto, CA, USA
- Subtle Medical, Menlo Park, CA, USA
| | - Hossein Jadvar
- Department of Radiology, University of Southern California, Los Angeles, CA, USA
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4
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Andel PM, Chrysidis S, Geiger J, Haaversen A, Haugeberg G, Myklebust G, Nielsen BD, Diamantopoulos A. Diagnosing Giant Cell Arteritis: A Comprehensive Practical Guide for the Practicing Rheumatologist. Rheumatology (Oxford) 2021; 60:4958-4971. [PMID: 34255830 DOI: 10.1093/rheumatology/keab547] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/14/2021] [Accepted: 06/25/2021] [Indexed: 11/13/2022] Open
Abstract
Giant cell arteritis (GCA) is the most common large vessel vasculitis in the elderly population. In recent years, advanced imaging has changed the way GCA can be diagnosed in many locations. The GCA fast-track clinic (FTC) approach combined with ultrasound (US) examination allows prompt treatment and diagnosis with high certainty. FTCs have been shown to improve prognosis while being cost effective. However, all diagnostic modalities are highly operator dependent, and in many locations expertise in advanced imaging may not be available. In this paper, we review the current evidence on GCA diagnostics and propose a simple algorithm for diagnosing GCA for use by rheumatologists not working in specialist centres.
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Affiliation(s)
- Peter M Andel
- Department of Cardiology, Østfold Hospital Trust, Grålum, Norway.,Department of Rheumatology, Hospital of Southern Norway, Kristiansand, Norway
| | - Stavros Chrysidis
- Department of Rheumatology, Southwest Jutland Hospital Esbjerg, Esbjerg, Denmark
| | - Julia Geiger
- Department of Diagnostic Imaging, University Children's Hospital Zurich, Zurich, Switzerland
| | - Anne Haaversen
- Department of Rheumatology, Martina Hansens Hospital, Bærum, Norway
| | - Glenn Haugeberg
- Department of Rheumatology, Hospital of Southern Norway, Kristiansand, Norway.,Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Geirmund Myklebust
- Department of Rheumatology, Hospital of Southern Norway, Kristiansand, Norway
| | - Berit D Nielsen
- Department of Medicine, The Regional Hospital in Horsens, Horsens, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Andreas Diamantopoulos
- Department of Rheumatology, Martina Hansens Hospital, Bærum, Norway.,Division of Medicine, Department of Rheumatology, Akershus University Hospital, Oslo, Norway
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5
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Vlachopoulos CV, Koutagiar IP, Georgakopoulos AT, Pouli AG, Sioni AΚ, Giannouli SΕ, Chondropoulos SD, Stergiou IΕ, Solomou EG, Terentes-Printzios DG, Karakitsios IG, Kafouris PP, Gaitanis A, Pianou NK, Petrocheilou A, Aggeli CI, Stroumpouli E, Marinakis TP, Voulgarelis M, Tousoulis DM, Anagnostopoulos CD. Lymphoma Severity and Type Are Associated With Aortic FDG Uptake by 18F-FDG PET/CT Imaging. JACC: CARDIOONCOLOGY 2020; 2:758-770. [PMID: 34396292 PMCID: PMC8352324 DOI: 10.1016/j.jaccao.2020.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 12/27/2022]
Abstract
Background There is evidence that metabolic disease burden in lymphoma influences patient outcome. However, the impact of disease severity on the cardiovascular system is unknown. Objectives The aim of this study was to examine whether lymphoma is associated with arterial inflammation by investigating the relationship between disease metabolic burden and arterial fluorodeoxyglucose (FDG) uptake. Methods Sixty-two chemotherapy-naïve patients with active Hodgkin’s or non-Hodgkin’s lymphoma were matched (2:1) to individual control groups of lymphoma patients previously treated and free of active disease. All groups underwent 18F-FDG position emission tomography–computed tomography imaging. Disease severity was quantified by metabolic tumor volume (MTV) and total lesion glycolysis corresponding to standardized uptake values (SUVs) ≥41% or ≥2.5 of the maximum SUV within lymphoma regions, and aortic FDG uptake was quantified through the target-to-background ratio (TBR). Inflammatory and disease severity biomarkers were also measured. Results MTV and total lesion glycolysis measurements were significantly correlated with inflammatory and disease biomarkers. Aortic TBR was higher in patients with active non-Hodgkin’s lymphoma compared with control subjects (median difference 0.51; 95% confidence interval [CI]: 0.28 to 0.78; p < 0.001). Similarly, patients with active Hodgkin’s lymphoma had higher values of aortic TBR compared with control subjects (median difference 0.31; 95% CI: 0.15 to 0.49; p < 0.001). In addition, aortic TBR was modestly increased in patients with stage III to IV disease compared with those with stage I to II disease (median aortic TBR: 2.23 [interquartile range: 2.01 to 2.54] vs. 2.06 [interquartile range: 1.83 to 2.27; p = 0.050). In multivariable analysis, aortic FDG uptake and MTV≥2.5 values were independently associated (β = 0.425; 95% CI: 0.189 to 0.662; p = 0.001; R2 = 0.208), as were aortic FDG uptake and MTV≥41% (β = 0.407; 95% CI: 0.167 to 0.649, p = 0.001; R2 = 0.191). Conclusions Aortic wall FDG uptake is related with disease severity indicative of a possible vascular effect of lymphoma. This work highlights a new potential role of molecular imaging in cardio-oncology for evaluating disease severity and its consequences on the vasculature.
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Key Words
- 18F-FDG, 18F-fluorodeoxyglucose
- BMI, body mass index
- CI, confidence interval
- CT, computed tomography
- CVD, cardiovascular disease
- LDH, lactate dehydrogenase
- MTV, metabolic tumor burden
- PET, positron emission tomography
- SUV, standardized uptake value
- SUVmax, maximum standardized uptake value
- SUVmean, mean standardized uptake value
- TBR, target-to-background ratio
- TLG, total lesion glycolysis
- WBC, white blood cell count
- arterial inflammation
- hsCRP, high-sensitivity C-reactive protein
- lymphoma
- metabolic burden
- positron emission tomography
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Affiliation(s)
- Charalambos V Vlachopoulos
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Iosif P Koutagiar
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexandros T Georgakopoulos
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | | | | | - Stavroula Ε Giannouli
- 2nd Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Ioanna Ε Stergiou
- Department of Pathophysiology, School of Medicine, University of Athens, Athens, Greece
| | - Eirini G Solomou
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios G Terentes-Printzios
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioannis G Karakitsios
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Pavlos P Kafouris
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece.,Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens, Greece
| | - Anastasios Gaitanis
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Nikoletta K Pianou
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Aikaterini Petrocheilou
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Constantina I Aggeli
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Euaggelia Stroumpouli
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Michael Voulgarelis
- Department of Pathophysiology, School of Medicine, University of Athens, Athens, Greece
| | - Dimitrios M Tousoulis
- Hypertension and Cardiometabolic Syndrome Unit, 1st Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Constantinos D Anagnostopoulos
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
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6
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Rosenblum JS, Quinn KA, Rimland CA, Mehta NN, Ahlman MA, Grayson PC. Clinical Factors Associated with Time-Specific Distribution of 18F-Fluorodeoxyglucose in Large-Vessel Vasculitis. Sci Rep 2019; 9:15180. [PMID: 31645635 PMCID: PMC6811531 DOI: 10.1038/s41598-019-51800-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/07/2019] [Indexed: 01/06/2023] Open
Abstract
18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) can detect vascular inflammation in large-vessel vasculitis (LVV). Clinical factors that influence distribution of FDG into the arterial wall and other tissues have not been characterized in LVV. Understanding these factors will inform analytic strategies to quantify vascular PET activity. Patients with LVV (n = 69) underwent 141 paired FDG-PET imaging studies at one and two hours per a delayed image acquisition protocol. Arterial uptake was quantified as standardized uptake values (SUVMax). SUVMean values were obtained for background tissues (blood pool, liver, spleen). Target-to-background ratios (TBRs) were calculated for each background tissue. Mixed model multivariable linear regression was used to identify time-dependent associations between FDG uptake and selected clinical features. Clinical factors associated with FDG distribution differed in a tissue- and time-dependent manner. Age, body mass index, and C-reactive protein were significantly associated with arterial FDG uptake at both time points. Clearance factors (e.g. glomerular filtration rate) were significantly associated with FDG uptake in background tissues at one hour but were weakly or not associated at two hours. TBRs using liver or blood pool at two hours were most strongly associated with vasculitis-related factors. These findings inform standardization of FDG-PET protocols and analytic approaches in LVV.
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Affiliation(s)
| | - Kaitlin A Quinn
- Systemic Autoimmunity Branch, NIAMS, Bethesda, Maryland, USA.,Division of Rheumatology, MedStar Georgetown University Hospital, Washington, District of Columbia, USA
| | - Casey A Rimland
- Systemic Autoimmunity Branch, NIAMS, Bethesda, Maryland, USA.,University of North Carolina at Chapel Hill School of Medicine, Medical Scientist Training Program, Chapel Hill, NC, USA
| | - Nehal N Mehta
- Cardiovascular Branch, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Mark A Ahlman
- Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Peter C Grayson
- Systemic Autoimmunity Branch, NIAMS, Bethesda, Maryland, USA.
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