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Entezarmahdi SM, Faghihi R, Yazdi M, Shahamiri N, Geramifar P, Haghighatafshar M. QCard-NM: Developing a semiautomatic segmentation method for quantitative analysis of the right ventricle in non-gated myocardial perfusion SPECT imaging. EJNMMI Phys 2023; 10:21. [PMID: 36959409 PMCID: PMC10036722 DOI: 10.1186/s40658-023-00539-6] [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: 10/10/2022] [Accepted: 03/01/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Recent studies have shown that the right ventricular (RV) quantitative analysis in myocardial perfusion imaging (MPI) SPECT can be beneficial in the diagnosis of many cardiopulmonary diseases. This study proposes a new algorithm for right ventricular 3D segmentation and quantification. METHODS The proposed Quantitative Cardiac analysis in Nuclear Medicine imaging (QCard-NM) algorithm provides RV myocardial surface estimation and creates myocardial contour using an iterative 3D model fitting method. The founded contour is then used for quantitative RV analysis. The proposed method was assessed using various patient datasets and digital phantoms. First, the physician's manually drawn contours were compared to the QCard-NM RV segmentation using the Dice similarity coefficient (DSC). Second, using repeated MPI scans, the QCard-NM's repeatability was evaluated and compared with the QPS (quantitative perfusion SPECT) algorithm. Third, the bias of the calculated RV cavity volume was analyzed using 31 digital phantoms using the QCard-NM and QPS algorithms. Fourth, the ability of QCard-NM analysis to diagnose coronary artery diseases was assessed in 60 patients referred for both MPI and coronary angiography. RESULTS The average DSC value was 0.83 in the first dataset. In the second dataset, the coefficient of repeatability of the calculated RV volume between two repeated scans was 13.57 and 43.41 ml for the QCard-NM and QPS, respectively. In the phantom study, the mean absolute percentage errors for the calculated cavity volume were 22.6% and 42.2% for the QCard-NM and QPS, respectively. RV quantitative analysis using QCard-NM in detecting patients with severe left coronary system stenosis and/or three-vessel diseases achieved a fair performance with the area under the ROC curve of 0.77. CONCLUSION A novel model-based iterative method for RV segmentation task in non-gated MPI SPECT is proposed. The precision, accuracy, and consistency of the proposed method are demonstrated by various validation techniques. We believe this preliminary study could lead to developing a framework for improving the diagnosis of cardiopulmonary diseases using RV quantitative analysis in MPI SPECT.
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Affiliation(s)
- Seyed Mohammad Entezarmahdi
- Nuclear Engineering Department, Shiraz University, Shiraz, Iran
- Nuclear Medicine and Molecular Imaging Research Center, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Faghihi
- Nuclear Engineering Department, Shiraz University, Shiraz, Iran.
| | - Mehran Yazdi
- School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran
| | - Negar Shahamiri
- Nuclear Medicine and Molecular Imaging Research Center, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Computer Science and Engineering and IT, Shiraz University, Shiraz, Iran
| | - Parham Geramifar
- Research Center for Nuclear Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Haghighatafshar
- Nuclear Medicine and Molecular Imaging Research Center, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Nuclear Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Leopold JA, Kawut SM, Aldred MA, Archer SL, Benza RL, Bristow MR, Brittain EL, Chesler N, DeMan FS, Erzurum SC, Gladwin MT, Hassoun PM, Hemnes AR, Lahm T, Lima JA, Loscalzo J, Maron BA, Rosa LM, Newman JH, Redline S, Rich S, Rischard F, Sugeng L, Tang WHW, Tedford RJ, Tsai EJ, Ventetuolo CE, Zhou Y, Aggarwal NR, Xiao L. Diagnosis and Treatment of Right Heart Failure in Pulmonary Vascular Diseases: A National Heart, Lung, and Blood Institute Workshop. Circ Heart Fail 2021; 14:e007975. [PMID: 34422205 PMCID: PMC8375628 DOI: 10.1161/circheartfailure.120.007975] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Right ventricular dysfunction is a hallmark of advanced pulmonary vascular, lung parenchymal, and left heart disease, yet the underlying mechanisms that govern (mal)adaptation remain incompletely characterized. Owing to the knowledge gaps in our understanding of the right ventricle (RV) in health and disease, the National Heart, Lung, and Blood Institute (NHLBI) commissioned a working group to identify current challenges in the field. These included a need to define and standardize normal RV structure and function in populations; access to RV tissue for research purposes and the development of complex experimental platforms that recapitulate the in vivo environment; and the advancement of imaging and invasive methodologies to study the RV within basic, translational, and clinical research programs. Specific recommendations were provided, including a call to incorporate precision medicine and innovations in prognosis, diagnosis, and novel RV therapeutics for patients with pulmonary vascular disease.
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Affiliation(s)
- Jane A. Leopold
- Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Steven M. Kawut
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Micheala A. Aldred
- Division of Pulmonary, Critical Care, Sleep & Occupational Medicine, Department of Medicine, Indiana University, Indianapolis, IN
| | - Stephen L. Archer
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Ray L. Benza
- Department of Medicine, Allegheny General Hospital, Pittsburgh, PA
| | | | - Evan L. Brittain
- Division of Cardiovascular Medicine and Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, TN
| | - Naomi Chesler
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI
| | - Frances S. DeMan
- Department of Pulmonary Medicine, PHEniX laboratory, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | | | - Mark T. Gladwin
- Department of Medicine, Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, UPMC and the University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Paul M. Hassoun
- Department of Medicine, Johns Hopkins University, Baltimore, MD
| | - Anna R. Hemnes
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Tim Lahm
- Division of Pulmonary, Critical Care, Sleep & Occupational Medicine, Department of Medicine, Indiana University, Indianapolis, IN
| | - Joao A.C. Lima
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Joseph Loscalzo
- Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Bradley A. Maron
- Division of Cardiovascular Medicine, Brigham and Women’s Hospital and Harvard Medical School and Department of Cardiology, Boston VA Healthcare System, West Roxbury, MA
| | - Laura Mercer Rosa
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - John H. Newman
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Susan Redline
- Departments of Medicine and Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Stuart Rich
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Franz Rischard
- Department of Medicine, University of Arizona- Tucson, Tucson, AZ
| | - Lissa Sugeng
- Department of Medicine, Yale School of Medicine, New Haven, CT
| | - W. H. Wilson Tang
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Ryan J. Tedford
- Division of Cardiology, Department of Medicine, Medical University of South Carolina, Charleston, SC
| | - Emily J. Tsai
- Division of Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY
| | - Corey E. Ventetuolo
- Department of Medicine, Alpert Medical School of Brown University, Department of Health Services, Policy and Practice, Brown University School of Public Health, Providence, RI
| | - YouYang Zhou
- Departments of Pediatrics (Division of Critical Care), Pharmacology, and Medicine, Northwestern University Feinberg School of Medicine. Chicago, Illinois
| | - Neil R. Aggarwal
- Division of Lung Diseases, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD
| | - Lei Xiao
- Division of Lung Diseases, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD
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Romero-Farina G, Aguadé-Bruix S. Perspective and future direction of intraventricular mechanical dyssynchrony assessment. J Nucl Cardiol 2021; 28:65-71. [PMID: 30684259 DOI: 10.1007/s12350-019-01604-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 01/12/2023]
Affiliation(s)
- Guillermo Romero-Farina
- Cardiology Department, Hospital Universitari Vall d'Hebron, Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Paseo Vall d'Hebron 119-129, 08035, Barcelona, Spain.
- Department of Nuclear Medicine, Hospital Universitari Vall d'Hebron, Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Santiago Aguadé-Bruix
- Department of Nuclear Medicine, Hospital Universitari Vall d'Hebron, Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
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Nichols KJ, Van Tosh A. Advances in dual respiratory and ECG-gated SPECT imaging. J Nucl Cardiol 2018; 25:1642-1644. [PMID: 28432669 DOI: 10.1007/s12350-017-0887-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 04/03/2017] [Indexed: 11/25/2022]
Affiliation(s)
- Kenneth J Nichols
- Division of Nuclear Medicine and Molecular Imaging, Northwell Health, 270-05 76th Avenue, New Hyde Park, NY, 11040, USA.
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AlJaroudi WA, Hage FG. Review of cardiovascular imaging in the Journal of Nuclear Cardiology 2017. Part 1 of 2: Positron emission tomography, computed tomography, and magnetic resonance. J Nucl Cardiol 2018; 25:320-330. [PMID: 29119374 DOI: 10.1007/s12350-017-1120-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 10/27/2017] [Indexed: 12/11/2022]
Abstract
Several original articles and editorials have been published in the Journal of Nuclear Cardiology in 2017. It has become a tradition at the beginning of each year to summarize some of these key articles in 2 sister reviews. In this first part one, we will discuss some of the progress made in the field of heart failure (cardio-oncology, myocardial blood flow, viability, dyssynchrony, and risk stratification), inflammation, molecular and hybrid imaging using advancement in positron emission tomography, computed tomography, and magnetic resonance imaging.
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Affiliation(s)
- Wael A AlJaroudi
- Division of Cardiovascular Medicine, Clemenceau Medical Center, Beirut, Lebanon
| | - Fadi G Hage
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, 306 Lyons-Harrison Research Building, 701 19th Street South, Birmingham, AL, 35294-0007, USA.
- Section of Cardiology, Birmingham Veterans Affairs Medical Center, Birmingham, AL, USA.
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6
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Zhou W, Jiang Z, Chen J, Garcia EV, Li D. Development and validation of a phase analysis tool to measure interventricular mechanical dyssynchrony from gated SPECT MPI. J Nucl Cardiol 2017; 24:1680-1686. [PMID: 27225514 PMCID: PMC10955150 DOI: 10.1007/s12350-016-0503-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 04/04/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVES The purpose of this study is to develop a right-ventricular (RV) phase analysis tool which when coupled with our left ventricular (LV) phase analysis tool can provide measurement of the interventricular mechanical dyssynchrony from gated SPECT myocardial perfusion imaging (MPI), and validate the tool by electrocardiography (ECG). METHODS For each patient, short-axis LV and RV SPECT MPI images were input into an automatic sampling algorithm to generate the 3D maximal count circumferential profiles for both LV and RV in each cardiac frame. Subsequently, the samples of LV and RV were separately used by our phase analysis tool based on the first-harmonic Fourier approximation to calculate the contraction onset for each sample. The difference between contraction onsets of the middle LV free wall and middle LV septal wall represented the LV contraction delay; the difference between contraction onsets of the middle RV free wall and middle RV septal wall represented the RV contraction delay. The difference between the LV and RV contraction delays represented the interventricular contraction delay, which was compared with the interventricular conduction delay classified by ECG to validate the concordance of interventricular mechanical and electrical dyssynchrony. Sixty-one bundle branch block (BBB) patients with ischemic-dilated cardiomyopathy (26, 42.6%) or non-ischemic-dilated cardiomyopathy (35, 57.4%), who underwent 12-lead surface ECG and gated resting Tc-99m sestamibi SPECT, were retrospectively analyzed in this study. RESULTS In the 30 patients with left bundle branch block (LBBB) by ECG, there were 27 patients whose LV contracted later than the RV according to SPECT; and in the 31 patients with right bundle branch block (RBBB) by ECG, there were 26 patients whose LV contracted earlier than the RV according to SPECT. In total, an agreement rate of 86.9% (53 of 61) was achieved between SPECT and ECG. The Kappa agreement rate was 73.8% (95% confidence interval 0.57-0.91). CONCLUSION The preliminary results showed promise for the measurement of interventricular mechanical dyssynchrony in BBB patients with dilated cardiomyopathy using our phase analysis tool.
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Affiliation(s)
- Weihua Zhou
- School of Computing, University of Southern Mississippi, Long Beach, MS, USA
| | - Zhixin Jiang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ji Chen
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA
| | - Ernest V Garcia
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA
| | - Dianfu Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
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Van Tosh A, Nichols KJ. Ventricular asynchrony: A shift to the right? J Nucl Cardiol 2017; 24:79-82. [PMID: 26747435 DOI: 10.1007/s12350-015-0383-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 12/11/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew Van Tosh
- Research Department, St. Francis Hospital-The Heart Center, Roslyn, NY, USA.
- St. Francis Hospital, Roslyn, NY, USA.
| | - Kenneth J Nichols
- Division of Nuclear Medicine and Molecular Imaging, North Shore - Long Island Jewish Health System, Manhasset, NY, USA
- Division of Nuclear Medicine and Molecular Imaging, North Shore - Long Island Jewish Health System, New Hyde Park, NY, USA
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Gabrielli L, Ocaranza MP, Sitges M, Kanacri A, Saavedra R, Sepulveda P, Sepulveda L, Rossel V, Zagolin M, Verdejo HE, Baraona F, Zalaquett R, Chiong M, Lavandero S, Castro PF. Acute effect of iloprost inhalation on right atrial function and ventricular dyssynchrony in patients with pulmonary artery hypertension. Echocardiography 2016; 34:53-60. [DOI: 10.1111/echo.13401] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Luigi Gabrielli
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
| | - María Paz Ocaranza
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
| | - Marta Sitges
- Institute Clinic Cardiovascular; Hospital Clínic of Barcelona; IDIBAPS, August Pi i Sunyer Biomedical Research Institute; University of Barcelona; Barcelona Spain
| | - Andrés Kanacri
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
| | - Rodrigo Saavedra
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
| | - Pablo Sepulveda
- Clinic Hospital; Faculty of Medicine; University of Santiago; Santiago Chile
| | - Luis Sepulveda
- Salvador Hospital; Faculty of Medicine; University of Chile; Santiago Chile
| | - Victor Rossel
- Clinic Hospital; Faculty of Medicine; University of Santiago; Santiago Chile
| | | | - Hugo E. Verdejo
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
| | - Fernando Baraona
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
| | - Ricardo Zalaquett
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
| | - Mario Chiong
- Advanced Center for Chronic Diseases (ACCDiS) & Molecular Studies of the Cell (CEMC); Faculty of Chemical and Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago Chile
- Department of Internal Medicine; University of Texas Southwestern Medical Center; Dallas Texas
| | - Sergio Lavandero
- Advanced Center for Chronic Diseases (ACCDiS) & Molecular Studies of the Cell (CEMC); Faculty of Chemical and Pharmaceutical Sciences & Faculty of Medicine; University of Chile; Santiago Chile
- Department of Internal Medicine; University of Texas Southwestern Medical Center; Dallas Texas
| | - Pablo F. Castro
- Advanced Center for Chronic Diseases (ACCDiS); Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
- Division of Cardiovascular Diseases; Faculty of Medicine; Pontificia Universidad Católica; Santiago Chile
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