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Maier A, Liao SL, Lescure T, Robson PM, Hirata N, Sartori S, Narula N, Vergani V, Soultanidis G, Morgenthau A, Kovacic JC, Padilla M, Narula J, Jacobi A, Fayad ZA, Trivieri MG. Pulmonary Artery 18F-Fluorodeoxyglucose Uptake by PET/CMR as a Marker of Pulmonary Hypertension in Sarcoidosis. JACC Cardiovasc Imaging 2021; 15:108-120. [PMID: 34274283 DOI: 10.1016/j.jcmg.2021.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES This study investigated whether pulmonary artery (PA) 18F-FDG uptake is associated with hypertension, and if it correlates to elevated pulmonary pressures. BACKGROUND 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) combined with computed tomography or cardiac magnetic resonance (CMR) has been used to assess inflammation mostly in large arteries of the systemic circulation. Much less is known about inflammation of the vasculature of the pulmonary system and its relationship to pulmonary hypertension (PH). METHODS In a single-center cohort of 175 patients with suspected cardiac sarcoidosis, who underwent hybrid thoracic PET/CMR, 18F-FDG uptake in the PA was quantified according to maximum standardized uptake value (SUVmax) and target-to-background ratio (TBR) and compared with available results from right heart catheterization (RHC) or transthoracic echocardiography (TTE). RESULTS Thirty-three subjects demonstrated clear 18F-FDG uptake in the PA wall. In the subgroup of patients who underwent RHC (n = 10), the mean PA pressure was significantly higher in the group with PA 18F-FDG uptake compared with the group without uptake (34.4 ± 7.2 mm Hg vs 25.6 ± 9.3 mm Hg; P = 0.003), and 9 (90%) patients with PA 18F-FDG uptake had PH when a mean PA pressure cutoff of 25 mm Hg was used compared with 18 (45%) in the nonuptake group (P < 0.05). In the subgroup that underwent TTE, signs of PH were present in a significantly higher number of patients with PA 18F-FDG uptake (14 [51.9%] vs 37 [29.8%]; P < 0.05). Qualitative assessment of 18F-FDG uptake in the PA wall showed a sensitivity of 33% and specificity of 96% for separating patients with PH based on RHC-derived PA pressures. SUVmax and TBR in the PA wall correlated with PA pressure derived from RHC and/or TTE. CONCLUSIONS We demonstrate that 18F-FDG uptake by PET/CMR in the PA is associated with PH and that its intensity correlates with PA pressure.
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Affiliation(s)
- Alexander Maier
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Department of Cardiology and Angiology I, Heart Center Freiburg University, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Steve Lin Liao
- Division of Noninvasive Cardiovascular Imaging at the Icahn School of Medicine at Mount Sinai, New York, USA
| | - Thomas Lescure
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Philip M Robson
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Naoki Hirata
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Samantha Sartori
- Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Navneet Narula
- Department of Pathology, New York University Langone Medical Center, New York, New York, USA
| | - Vittoria Vergani
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Georgios Soultanidis
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Adam Morgenthau
- Division of Pulmonary, Critical Care, and Sleep Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jason C Kovacic
- Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Darlinghurst, New South Wales, Australia
| | - Maria Padilla
- Division of Pulmonary, Critical Care, and Sleep Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jagat Narula
- Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Adam Jacobi
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Zahi A Fayad
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Maria G Trivieri
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
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Lescure T, Moreau J, Charles C, Ben Ali Saanda T, Thouin H, Pillas N, Bauda P, Lamy I, Battaglia-Brunet F. Influence of organic matters on AsIII oxidation by the microflora of polluted soils. Environ Geochem Health 2016; 38:911-925. [PMID: 26427654 DOI: 10.1007/s10653-015-9771-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 09/23/2015] [Indexed: 06/05/2023]
Abstract
The global AsIII-oxidizing activity of microorganisms in eight surface soils from polluted sites was quantified with and without addition of organic substrates. The organic substances provided differed by their nature: either yeast extract, commonly used in microbiological culture media, or a synthetic mixture of defined organic matters (SMOM) presenting some common features with natural soil organic matter. Correlations were sought between soil characteristics and both the AsIII-oxidizing rate constants and their evolution in accordance with inputs of organic substrates. In the absence of added substrate, the global AsIII oxidation rate constant correlated positively with the concentration of intrinsic organic matter in the soil, suggesting that AsIII-oxidizing activity was limited by organic substrate availability in nutrient-poor soils. This limitation was, however, removed by 0.08 g/L of added organic carbon. In most conditions, the AsIII oxidation rate constant decreased as organic carbon input increased from 0.08 to 0.4 g/L. Incubations of polluted soils in aerobic conditions, amended or not with SMOM, resulted in short-term As mobilization in the presence of SMOM and active microorganisms. In contrast, microbial AsIII oxidation seemed to stabilize As when no organic substrate was added. Results suggest that microbial speciation of arsenic driven by nature and concentration of organic matter exerts a major influence on the fate of this toxic element in surface soils.
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Affiliation(s)
- T Lescure
- BRGM, 3 Avenue Claude Guillemin, 45060, Orléans, France
- ISTO, UMR 7327, BRGM, BP 36009, 45060, Orléans, France
- LIEC UMR 7360, CNRS-Université de Lorraine, Campus Bridoux, rue du Général Delestraint, 57070, Metz, France
- Agence de l'Environnement et de la Maîtrise de l'Energie, 20 Avenue du Grésillé, BP 90406, 49004, Angers Cedex 01, France
| | - J Moreau
- BRGM, 3 Avenue Claude Guillemin, 45060, Orléans, France
| | - C Charles
- BRGM, 3 Avenue Claude Guillemin, 45060, Orléans, France
| | | | - H Thouin
- BRGM, 3 Avenue Claude Guillemin, 45060, Orléans, France
- ISTO, UMR 7327, BRGM, BP 36009, 45060, Orléans, France
| | - N Pillas
- BRGM, 3 Avenue Claude Guillemin, 45060, Orléans, France
| | - P Bauda
- LIEC UMR 7360, CNRS-Université de Lorraine, Campus Bridoux, rue du Général Delestraint, 57070, Metz, France
| | - I Lamy
- INRA Centre de Versailles-Grignon, RD 10, 78026, Versailles Cedex, France
| | - F Battaglia-Brunet
- BRGM, 3 Avenue Claude Guillemin, 45060, Orléans, France.
- ISTO, UMR 7327, BRGM, BP 36009, 45060, Orléans, France.
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