1
|
Mukherjee T, Keshavarzian M, Fugate EM, Naeini V, Darwish A, Ohayon J, Myers KJ, Shah DJ, Lindquist D, Sadayappan S, Pettigrew RI, Avazmohammadi R. Complete spatiotemporal quantification of cardiac motion in mice through enhanced acquisition and super-resolution reconstruction. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.31.596322. [PMID: 38895261 PMCID: PMC11185553 DOI: 10.1101/2024.05.31.596322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The quantification of cardiac motion using cardiac magnetic resonance imaging (CMR) has shown promise as an early-stage marker for cardiovascular diseases. Despite the growing popularity of CMR-based myocardial strain calculations, measures of complete spatiotemporal strains (i.e., three-dimensional strains over the cardiac cycle) remain elusive. Complete spatiotemporal strain calculations are primarily hampered by poor spatial resolution, with the rapid motion of the cardiac wall also challenging the reproducibility of such strains. We hypothesize that a super-resolution reconstruction (SRR) framework that leverages combined image acquisitions at multiple orientations will enhance the reproducibility of complete spatiotemporal strain estimation. Two sets of CMR acquisitions were obtained for five wild-type mice, combining short-axis scans with radial and orthogonal long-axis scans. Super-resolution reconstruction, integrated with tissue classification, was performed to generate full four-dimensional (4D) images. The resulting enhanced and full 4D images enabled complete quantification of the motion in terms of 4D myocardial strains. Additionally, the effects of SRR in improving accurate strain measurements were evaluated using an in-silico heart phantom. The SRR framework revealed near isotropic spatial resolution, high structural similarity, and minimal loss of contrast, which led to overall improvements in strain accuracy. In essence, a comprehensive methodology was generated to quantify complete and reproducible myocardial deformation, aiding in the much-needed standardization of complete spatiotemporal strain calculations.
Collapse
Affiliation(s)
- Tanmay Mukherjee
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Maziyar Keshavarzian
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Elizabeth M. Fugate
- Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Vahid Naeini
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Amr Darwish
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX 77030, USA
| | - Jacques Ohayon
- Savoie Mont-Blanc University, Polytech Annecy-Chambéry, Le Bourget du Lac, France
- Laboratory TIMC-CNRS, UMR 5525, Grenoble-Alpes University, Grenoble, France
| | - Kyle J. Myers
- Hagler Institute for Advanced Study, Texas A&M University, College Station, TX 77843, USA
| | - Dipan J. Shah
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX 77030, USA
| | - Diana Lindquist
- Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Sakthivel Sadayappan
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Roderic I. Pettigrew
- School of Engineering Medicine, Texas AM University, Houston, TX 77030, USA
- Department of Cardiovascular Sciences, Houston Methodist Academic Institute, Houston, TX 77030, USA
| | - Reza Avazmohammadi
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
- Department of Cardiovascular Sciences, Houston Methodist Academic Institute, Houston, TX 77030, USA
- J. Mike Walker ’66 Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
| |
Collapse
|
2
|
Zhuang H, Yang K, Zhao S, Wu J, Xu N, Zhang L, Qi X, Zhang M, Song L, Pang K. Incremental value of myocardial global longitudinal strain in predicting major adverse cardiac events among patients with hypertrophic cardiomyopathy. Echocardiography 2024; 41:e15834. [PMID: 38784981 DOI: 10.1111/echo.15834] [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: 03/24/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024] Open
Abstract
OBJECTIVES Endocardial global longitudinal strain (endo-GLS) measured with echocardiography (echo) has been demonstrated to be associated with myocardial fibrosis (MF) and is a prognostic predictor in patients with hypertrophic cardiomyopathy (HCM). Late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) imaging showed that MF is primarily located in the myocardial layer of the extremely hypertrophic septal or ventricular wall. We hypothesized that GLS of the myocardial layer (myo-GLS) is more strongly correlated with the extent of LGE (%LGE) and is a more powerful prognostic factor than endo-GLS. METHODS A total of 177 inpatients (54.0 [IQR: 43.0, 64.0] years, female 37.3%) with HCM were retrospectively included from May 2019 to April 2021. Among them, 162 patients underwent echocardiographic examination and contrast-enhanced CMR within 7 days. Myo-GLS and %LGE were blindly assessed in a core laboratory. All the patients were followed after they were discharged. RESULTS During a mean follow-up of 33.77 [IQR 30.05, 35.40] months, 14 participants (7.91%) experienced major adverse cardiac events (MACE). The MACE (+) group showed lower absolute endo-GLS and myo-GLS than the MACE (-) group. Myo-GLS was more associated with %LGE (r = -.68, P < .001) than endo-GLS (r = -.64, P < .001). Cox multivariable analysis indicated that absolute myo-GLS was independently associated with MACE (adjusted hazard ratio = .75, P < .05). Myo-GLS was better than endo-GLS at detecting MACE (+) patients (-8.64%, AUC .939 vs. - 16.375%, AUC .898, P < .05). CONCLUSIONS Myo-GLS is a stronger predictor of MACE than endo-GLS in patients with HCM and is highly correlated with %LGE.
Collapse
Affiliation(s)
- Haiming Zhuang
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Kai Yang
- Department of Magnetic Resonance Imaging, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shihua Zhao
- Department of Magnetic Resonance Imaging, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jinlin Wu
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong, China
| | - Nan Xu
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Li Zhang
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Xiaoling Qi
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Mo Zhang
- Department of Cardiovascular Internal Medicine, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Lei Song
- Department of Cardiovascular Internal Medicine, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Kunjing Pang
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| |
Collapse
|
3
|
Di Lisi D, Brighina F, Manno G, Comparato F, Di Stefano V, Macaione F, Damerino G, Di Caccamo L, Cannizzo N, Ortello A, Galassi AR, Novo G. Hereditary Transthyretin Amyloidosis: How to Differentiate Carriers and Patients Using Speckle-Tracking Echocardiography. Diagnostics (Basel) 2023; 13:3634. [PMID: 38132218 PMCID: PMC10743162 DOI: 10.3390/diagnostics13243634] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Hereditary transthyretin amyloidosis is a rare disease caused by transthyretin (TTR) gene mutations. The aim of our study was to identify early signs of cardiac involvement in patients with a TTR gene mutation in order to differentiate carriers from patients with neurological or cardiac disease. METHODS A case-control study was carried out on 31 subjects with the TTR mutation. Patients were divided into three groups: 23% with cardiac amyloidosis and polyneuropathy (group A), 42% with only polyneuropathy (group B) and 35% carriers (group C). Speckle-tracking echocardiography (left-ventricular global longitudinal strain-GLS, atrial stiffness) was performed in all patients. The apical/basal longitudinal strain ratio (SAB) and relative apical sparing (RAS) were assessed in all subjects. RESULTS Analyzing groups C and B, we only found a significant difference in the SAB (p-value 0.001) and RAS (p-value 0.039). These parameters were significantly more impaired in group A compared to group B (SAB p-value 0.008; RAS p-value 0.002). Also, atrial stiffness was significantly impaired in groups A and B compared to group C. CONCLUSIONS Our study suggests the diagnostic role of the SAB and RAS in cardiac amyloidosis. The SAB and RAS showed a gradual increase from carriers to patients with neurological and cardiac diseases. Thus, these parameters, in addition to atrial stiffness, could be used to monitor carriers. More extensive data are needed.
Collapse
Affiliation(s)
- Daniela Di Lisi
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Filippo Brighina
- Section of Neurology, Department of Biomedicine, Neuroscience and Advanced Diagnostic (BIND), University of Palermo, 90127 Palermo, Italy
| | - Girolamo Manno
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Francesco Comparato
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Vincenzo Di Stefano
- Section of Neurology, Department of Biomedicine, Neuroscience and Advanced Diagnostic (BIND), University of Palermo, 90127 Palermo, Italy
| | - Francesca Macaione
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Giuseppe Damerino
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Leandro Di Caccamo
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Noemi Cannizzo
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Antonella Ortello
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Alfredo R. Galassi
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| | - Giuseppina Novo
- Division of Cardiology, University Hospital Paolo Giaccone, 90127 Palermo, Italy (G.D.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
| |
Collapse
|
4
|
Qian Y, Zhao X, Chen BH, An DA, Wu R, Shi RY, Zhang C, Ma X, Zhou Y, Zhao L, Wu LM. Right ventricular global strain in patients with hypertrophic cardiomyopathy with and without right ventricular hypertrophy. Eur J Radiol 2023; 169:111148. [PMID: 37871355 DOI: 10.1016/j.ejrad.2023.111148] [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: 06/08/2023] [Revised: 09/12/2023] [Accepted: 10/10/2023] [Indexed: 10/25/2023]
Abstract
PURPOSE Regardless of whether there are morphological abnormalities of right ventricle in hypertrophic cardiomyopathy (HCM) patients, the exact contribution of right ventricular (RV) global strains remains unresolved. We aimed to study the prognostic value of RV global strains in HCM patients with and without RV hypertrophy (RVH). METHOD A total of 358 HCM patients who underwent the CMR examination and carried out the follow-up were finally included in this retrospective study. The endpoint was a composite of all-cause mortality, aborted SCD, and heart failure readmission. RV hypertrophy (RVH) was defined as maximal RVWT ≥ 5 mm at end-diastole. RV global strains (RV global longitudinal strain (GLS) and RV global circumferential strain (GCS) were measured in HCM patients by cardiac MRI feature tracking technique. The intraobserver and interobserver reproducibility were evaluated. Receiver-operating characteristic curves and Kaplan-Meier curves, cox proportional hazards regression, Likelihood ratio test and Integrated Discrimination Improvement (IDI) analysis were performed. P-value were corrected for multiple testing when using many covariables by a false discovery rate adjustment. RESULTS Over a median follow-up of 25 (range 3-54) months, 49 patients reached the composite endpoints. HCM patients were divided into the RVH group and non-RVH groups. In the multivariate cox proportional hazards regression, after adjusting multiple clinical and imaging variables, RV GLS and RV GCS were independently associated with the composite endpoints in the RVH group (HR: 1.123; 95 % CI: 1.048-1.205; P = 0.002) and non-RVH group (HR: 1.174; 95 % CI: 1.031-1.337; P = 0.015), respectively. And The IDI index of models improved when adding RV GLS (IDI = 0.030, p < 0.001) and RV GLS (IDI = 0.056, p = 0.020), respectively. CONCLUSIONS RV GLS and RV GCS are independent predictors of HCM with RVH and without RVH, respectively. RV GLS in the RVH group and RV GCS in the non-RVH group provide additional values for predicting the risk of adverse events.
Collapse
Affiliation(s)
- Yufan Qian
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Xinghan Zhao
- Department of Interventional Diagnosis and Treatment, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Bing-Hua Chen
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Dong-Aolei An
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Rui Wu
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Ruo-Yang Shi
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Chen Zhang
- Department of Interventional Diagnosis and Treatment, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Xiaohai Ma
- Department of Interventional Diagnosis and Treatment, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Yan Zhou
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Lei Zhao
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Lian-Ming Wu
- Department of Radiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China.
| |
Collapse
|
5
|
Hegeman RRMJJ, McManus S, Tóth A, Ladeiras-Lopes R, Kitslaar P, Bui V, Dukker K, Harb SC, Swaans MJ, Ben-Yehuda O, Klein P, Puri R. Reference Values for Inward Displacement in the Normal Left Ventricle: A Novel Method of Regional Left Ventricular Function Assessment. J Cardiovasc Dev Dis 2023; 10:474. [PMID: 38132642 PMCID: PMC10744219 DOI: 10.3390/jcdd10120474] [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: 10/19/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Regional functional left ventricular (LV) assessment using current imaging techniques remains limited. Inward displacement (InD) has been developed as a novel technique to assess regional LV function via measurement of the regional displacement of the LV endocardial border across each of the 17 LV segments. Currently, normal ranges for InD are not available for clinical use. The aim of this study was to validate the normal reference limits of InD in healthy adults across all LV segments. METHODS InD was analyzed in 120 healthy subjects with a normal LV ejection fraction, using the three standard long-axis views obtained during cardiac MRI that quantified the degree of inward endocardial wall motion towards the true LV center of contraction. For all LV segments, InD was measured in mm and expressed as a percentage of the theoretical degree of maximal segment contraction towards the true LV centerline. The arithmetic average InD was obtained for each of the 17 segments. The LV was divided into three regions, obtaining average InD at the LV base (segments 1-6), mid-cavity (segments 7-12) and apex (segments 13-17). RESULTS Average InD was 33.4 ± 4.3%. InD was higher in basal and mid-cavity LV segments (32.8 ± 4.1% and 38.1 ± 5.8%) compared to apical LV segments (28.6 ± 7.7%). Interobserver variability correlations for InD were strong (R = 0.80, p < 0.0001). CONCLUSIONS We provide clinically meaningful reference ranges for InD in subjects with normal LV function, which will emerge as an important screening and assessment imaging tool for a range of HFrEF therapies.
Collapse
Affiliation(s)
- Romy R. M. J. J. Hegeman
- Department of Cardiothoracic Surgery, Sint Antonius Hospital, 3435 CM Nieuwegein, The Netherlands
- Department of Cardiothoracic Surgery, Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands
| | | | - Attila Tóth
- Department of Radiology, Gottsegen György Hungarian Institute of Cardiology & Semmelweis University, 1096 Budapest, Hungary
| | - Ricardo Ladeiras-Lopes
- Department of Cardiology, Gaia/Espinho Hospital Centre, Rua Conceicao Fernandes, 4434-502 Vila Nova de Gaia, Portugal
| | - Pieter Kitslaar
- Medis Medical Imaging Systems, 2316 XG Leiden, The Netherlands
| | - Viet Bui
- Medis Medical Imaging Systems, 2316 XG Leiden, The Netherlands
| | - Kayleigh Dukker
- Medis Medical Imaging Systems, 2316 XG Leiden, The Netherlands
| | - Serge C. Harb
- Department of Cardiovascular Medicine, Heart, Vascular & Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA (R.P.)
| | - Martin J. Swaans
- Department of Cardiology, Sint Antonius Hospital, 3435 CM Nieuwegein, The Netherlands
| | - Ori Ben-Yehuda
- Bioventrix Inc., Mansfield, MA 02048, USA
- Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, CA 92037, USA
| | - Patrick Klein
- Department of Cardiothoracic Surgery, Sint Antonius Hospital, 3435 CM Nieuwegein, The Netherlands
- Department of Cardiothoracic Surgery, Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands
| | - Rishi Puri
- Department of Cardiovascular Medicine, Heart, Vascular & Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA (R.P.)
| |
Collapse
|
6
|
Zhang X, Zhao R, Deng W, Li Y, An S, Qian Y, Liu B, Yu Y, Li X. Left Atrial and Ventricular Strain Differentiates Cardiac Amyloidosis and Hypertensive Heart Disease: A Cardiac MR Feature Tracking Study. Acad Radiol 2023; 30:2521-2532. [PMID: 36925334 DOI: 10.1016/j.acra.2023.02.003] [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: 12/06/2022] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 03/17/2023]
Abstract
RATIONALE AND OBJECTIVES Strain measured by feature tracking technique represents the degree of deformation and reflects the systolic and diastolic function of the heart. Our purpose was to evaluate the differential diagnostic value and correlations of left atrial (LA) strain (LAS) and left ventricular (LV) strain (LVS) in cardiac amyloidosis (CA) and hypertensive heart disease (HHD) patients. MATERIALS AND METHODS We recruited 25 CA patients, 30 sex- and age-matched HHD patients and 20 healthy subjects totally. LAS and LVS were analyzed by CVI42 post-processing software. The efficiency of LAS and LVS in differentiating CA from HHD was compared by receiver operating characteristic curves analysis. Pearson or Spearman's analysis were used to assess the correlation between LAS and LV parameters. RESULTS Both HHD and CA patients had impaired LVS, the gradient of increasing absolute values of longitudinal strain (LS) and radial strain (RS) from the basal to the apical myocardium was most pronounced in the CA group, its relative apical sparing of LS (RASLS) ratio reached 0.91 ± 0.02, significantly higher than other two groups (HHD: 0.72 ± 0.02; controls: 0.56 ± 0.01, all p <0.001). Additionally, except for the booster strain in the HHD group was preserved, all other LAS were reduced in patients' groups. The RASLS had the best differential diagnostic efficacy with an area under the curve (AUC) of 0.930 (p <0.001); The AUCs of LAS all greater than 0.850, above global LS (GLS) (AUC = 0.770, p = 0.001). LAS was notably correlated with LV ejection fraction (LVEF) and GLS, with reservoir strain having the greatest correlation with GLS (r = -0.828, p <0.001). CONCLUSION The RASLS has high efficiency in guiding the differential diagnosis of CA and HHD with similar degree and presentation of LVH. Moreover, LAS values can also provide some useful information and they are closely linked with LV function, CMR feature tracking may provide assistance in the evaluation of LA-LV coupling.
Collapse
Affiliation(s)
- Xinna Zhang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Ren Zhao
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Wei Deng
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Yuguo Li
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Shutian An
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Yinfeng Qian
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Bin Liu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Yongqiang Yu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China
| | - Xiaohu Li
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230032, Anhui Province, China; Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, No. 218 Jixi Road, Hefei 230032, Anhui Province, China.
| |
Collapse
|
7
|
Machine Learning Approaches in Diagnosis, Prognosis and Treatment Selection of Cardiac Amyloidosis. Int J Mol Sci 2023; 24:ijms24065680. [PMID: 36982754 PMCID: PMC10051237 DOI: 10.3390/ijms24065680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023] Open
Abstract
Cardiac amyloidosis is an uncommon restrictive cardiomyopathy featuring an unregulated amyloid protein deposition that impairs organic function. Early cardiac amyloidosis diagnosis is generally delayed by indistinguishable clinical findings of more frequent hypertrophic diseases. Furthermore, amyloidosis is divided into various groups, according to a generally accepted taxonomy, based on the proteins that make up the amyloid deposits; a careful differentiation between the various forms of amyloidosis is necessary to undertake an adequate therapeutic treatment. Thus, cardiac amyloidosis is thought to be underdiagnosed, which delays necessary therapeutic procedures, diminishing quality of life and impairing clinical prognosis. The diagnostic work-up for cardiac amyloidosis begins with the identification of clinical features, electrocardiographic and imaging findings suggestive or compatible with cardiac amyloidosis, and often requires the histological demonstration of amyloid deposition. One approach to overcome the difficulty of an early diagnosis is the use of automated diagnostic algorithms. Machine learning enables the automatic extraction of salient information from “raw data” without the need for pre-processing methods based on the a priori knowledge of the human operator. This review attempts to assess the various diagnostic approaches and artificial intelligence computational techniques in the detection of cardiac amyloidosis.
Collapse
|
8
|
Kotby AA, Ebrahim SOS, Al-Fahham MM. Reference centiles for left ventricular longitudinal global and regional systolic strain by automated functional imaging in healthy Egyptian children. Cardiol Young 2022; 33:1-9. [PMID: 35241202 DOI: 10.1017/s1047951122000129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Two-dimensional speckle tracking echocardiography-derived left ventricular longitudinal systolic strain is an important myocardial deformation parameter for assessing the systolic function of the left ventricle. Strain values differ according to the vendor machine and software. This study aimed to provide normal reference values for global and regional left ventricular longitudinal systolic strain in Egyptian children using automated functional imaging software integrated into the General Electric healthcare machine and to study the correlation between the global longitudinal left ventricular systolic strain and age, body size, vital data, and some echocardiographic parameters. METHODS Healthy children (250) aged from 1 to 16 years were included. Conventional echocardiography was done to measure the left ventricular dimensions and function. Automated functional imaging was performed to measure the global and regional peak longitudinal systolic strain. RESULTS The global longitudinal strain was -21.224 ± 1.862%. The regional strain was -20.68 ± 2.11%, -21.06 ± 1.84%, and -21.86 ± 2.71% at the basal, mid, and apical segments, respectively. The mean values of the systolic longitudinal strain become significantly more negative from base to apex. Age differences were found as regard to global and regional longitudinal strain parameters but no gender differences. The global peak longitudinal systolic strain correlated positively with age. No correlations were found with either the anthropometric parameters or the vital data. CONCLUSIONS Age-specific normal values for two-dimensional speckle tracking-derived left ventricular longitudinal regional and global systolic strain are established using automated functional imaging.
Collapse
Affiliation(s)
- Alyaa A Kotby
- Pediatric Department, Pediatric Cardiology Unit, Faculty of Medicine, Ain Shams University, Abbasia 11566, Cairo, Egypt
| | - Sahar O S Ebrahim
- Pediatric Department, Pediatric Cardiology Unit, Faculty of Medicine, Ain Shams University, Abbasia 11566, Cairo, Egypt
| | - Marwa M Al-Fahham
- Pediatric Department, Pediatric Cardiology Unit, Faculty of Medicine, Ain Shams University, Abbasia 11566, Cairo, Egypt
| |
Collapse
|
9
|
Satriano A, Afzal Y, Sarim Afzal M, Fatehi Hassanabad A, Wu C, Dykstra S, Flewitt J, Feuchter P, Sandonato R, Heydari B, Merchant N, Howarth AG, Lydell CP, Khan A, Fine NM, Greiner R, White JA. Neural-Network-Based Diagnosis Using 3-Dimensional Myocardial Architecture and Deformation: Demonstration for the Differentiation of Hypertrophic Cardiomyopathy. Front Cardiovasc Med 2020; 7:584727. [PMID: 33304928 PMCID: PMC7693650 DOI: 10.3389/fcvm.2020.584727] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/09/2020] [Indexed: 12/24/2022] Open
Abstract
The diagnosis of cardiomyopathy states may benefit from machine-learning (ML) based approaches, particularly to distinguish those states with similar phenotypic characteristics. Three-dimensional myocardial deformation analysis (3D-MDA) has been validated to provide standardized descriptors of myocardial architecture and deformation, and may therefore offer appropriate features for the training of ML-based diagnostic tools. We aimed to assess the feasibility of automated disease diagnosis using a neural network trained using 3D-MDA to discriminate hypertrophic cardiomyopathy (HCM) from its mimic states: cardiac amyloidosis (CA), Anderson–Fabry disease (AFD), and hypertensive cardiomyopathy (HTNcm). 3D-MDA data from 163 patients (mean age 53.1 ± 14.8 years; 68 females) with left ventricular hypertrophy (LVH) of known etiology was provided. Source imaging data was from cardiac magnetic resonance (CMR). Clinical diagnoses were as follows: 85 HCM, 30 HTNcm, 30 AFD, and 18 CA. A fully-connected-layer feed-forward neural was trained to distinguish HCM vs. other mimic states. Diagnostic performance was compared to threshold-based assessments of volumetric and strain-based CMR markers, in addition to baseline clinical patient characteristics. Threshold-based measures provided modest performance, the greatest area under the curve (AUC) being 0.70. Global strain parameters exhibited reduced performance, with AUC under 0.64. A neural network trained exclusively from 3D-MDA data achieved an AUC of 0.94 (sensitivity 0.92, specificity 0.90) when performing the same task. This study demonstrates that ML-based diagnosis of cardiomyopathy states performed exclusively from 3D-MDA is feasible and can distinguish HCM from mimic disease states. These findings suggest strong potential for computer-assisted diagnosis in clinical practice.
Collapse
Affiliation(s)
| | | | | | - Ali Fatehi Hassanabad
- Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Cody Wu
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada
| | - Steven Dykstra
- Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jacqueline Flewitt
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| | | | | | - Bobak Heydari
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada
| | - Naeem Merchant
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada.,Department of Diagnostic Imaging, University of Calgary, Calgary, AB, Canada
| | - Andrew G Howarth
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| | - Carmen P Lydell
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada.,Department of Diagnostic Imaging, University of Calgary, Calgary, AB, Canada
| | - Aneal Khan
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada
| | - Nowell M Fine
- Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| | - Russell Greiner
- Department of Computing Science, University of Alberta, Edmonton, AB, Canada.,Alberta Machine Learning Institute, Edmonton, AB, Canada
| | - James A White
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| |
Collapse
|