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"Cardiovascular magnetic resonance"

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https://www.readbyqxmd.com/read/28918213/myocardium-at-risk-assessed-by-electrocardiographic-scores-and-cardiovascular-magnetic-resonance-a-mitocare-substudy
#1
Maria Sejersten, Yama Fakhri, Marianne Pape, Svend Eggert Jensen, Einar Heiberg, Henrik Engblom, Trygve S Hall, Dan Atar, Peter Clemmensen
INTRODUCTION: The myocardium at risk (MaR) represents the quantitative ischemic area destined to myocardial infarction (MI) if no reperfusion therapy is initiated. Different ECG scores for MaR have been developed, but there is no consensus as to which should be preferred. OBJECTIVE: Comparisons of ECG scores and Cardiac Magnetic Resonance (CMR) for determining MaR. METHODS: MaR was determined by 3 different ECG scores, and by CMR in ST-segment elevation MI (STEMI) patients from the MITOCARE cardioprotection trial...
August 16, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28903760/feasibility-of-detecting-myocardial-infarction-in-the-sheep-fetus-using-late-gadolinium-enhancement-cmr-imaging
#2
An Qi Duan, Mitchell C Lock, Sunthara Rajan Perumal, Jack R Darby, Jia Yin Soo, Joseph B Selvanayagam, Christopher K Macgowan, Mike Seed, Janna L Morrison
BACKGROUND: Late gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) imaging has enabled the accurate assessment of myocardial infarction (MI). However, LGE CMR has not been performed successfully in the fetus, where it could be useful for animal studies of interventions to promote cardiac regeneration. We believe that LGE imaging could allow us to document the presence, extent and effect of MI in utero and would thereby expand our capacity for conducting fetal sheep MI research...
September 13, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28900462/comparison-of-the-therapeutic-effects-of-acupuncture-at-pc6-and-st36-for-chronic-myocardial-ischemia
#3
Li Shi, Jiliang Fang, Jiping Zhao, Guiyong Liu, Qing Zhao, Jinling Zhang, Jinzhao Zhang, Bing Zhu, Fanrong Liang, Peijing Rong
We aimed to compare the differences of the effects on chronic myocardial ischemia (MI) of acupuncture at PC6 and ST36. The chronic MI model of minipigs was created by implanting an Ameroid constrictor on the left anterior descending coronary artery (LAD) and then two weeks' acupuncture was stimulated at PC6 or ST36, respectively. The results showed that both acupoints' stimulation decreased the serous cardiac troponin T (cTnT) and ischemia modified albumin (IMA) significantly and improved the ischemic ECG changes...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28895993/intramyocardial-haemorrhage-as-a-rare-complication-of-myocardial-infarction-the-diagnostic-value-of-cardiovascular-magnetic-resonance-imaging
#4
Sigita Glaveckaite, Darius Palionis, Nomeda Valeviciene, Egle Kontrimaviciute, Pranas Serpytis
No abstract text is available yet for this article.
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28874164/radiation-free-cmr-diagnostic-heart-catheterization-in-children
#5
Kanishka Ratnayaka, Joshua P Kanter, Anthony Z Faranesh, Elena K Grant, Laura J Olivieri, Russell R Cross, Ileen F Cronin, Karin S Hamann, Adrienne E Campbell-Washburn, Kendall J O'Brien, Toby Rogers, Michael S Hansen, Robert J Lederman
BACKGROUND: Children with heart disease may require repeated X-Ray cardiac catheterization procedures, are more radiosensitive, and more likely to survive to experience oncologic risks of medical radiation. Cardiovascular magnetic resonance (CMR) is radiation-free and offers information about structure, function, and perfusion but not hemodynamics. We intend to perform complete radiation-free diagnostic right heart catheterization entirely using CMR fluoroscopy guidance in an unselected cohort of pediatric patients; we report the feasibility and safety...
September 6, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28870679/acc-aats-aha-ase-asnc-hrs-scai-scct-scmr-sts-2017-appropriate-use-criteria-for-multimodality-imaging-in-valvular%C3%A2-heart-disease-a-report-of-the-american-college-of-cardiology-appropriate-use-criteria-task-force-american-association-for-thoracic-surgery-american
#6
https://www.readbyqxmd.com/read/28870471/challenging-occam-s-razor-an-unusual-combination-of-sarcoidosis-and-amyloidosis-the-value-of-cardiac-magnetic-resonance-imaging-in-infiltrative-cardiomyopathies
#7
Eva Nyktari, Vassilios S Vassiliou, Monika Arzanauskaite, Peter Gatehouse, Andreas Greiser, Ashutosh Wechalekar, Janet Gilbertson, Iain Pierce, Rakesh Sharma, Raad Mohiaddin
We describe the case of a 66-year old woman with the extremely rare combination of sarcoidosis and amyloidosis (light chain) and the important role of cardiovascular magnetic resonance imaging to differentiate between these 2 infiltrative diseases. Myocardial characterization with T1 mapping can improve disease detection, especially in overlap cases, and possibly obviate the need for cardiac biopsy.
July 18, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28867261/histologically-proven-myocardial-carcinoid-metastases-the-value-of-multimodality-imaging
#8
Annina A Studer Bruengger, Kshama Wechalekar, Rajdeep Khattar, Stuart D Rosen, Jan Lukas Robertus, Ian Chau, Daniel Morganstein, Ulrich Rosendahl, Alexander Lyon, Raad Mohiaddin
We present a case of a patient with intramyocardial metastases from a carcinoid tumor. These findings were detected using cardiovascular magnetic resonance imaging, with functional metabolic activity analyzed using nuclear imaging and confirmed by histologic findings at surgical biopsy. This case highlights the value of cardiovascular magnetic resonance imaging and the importance of multimodality imaging.
June 16, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28864371/left-ventricular-noncompaction-in-older-patients
#9
Tao Tian, Kun-Qi Yang, Yi Mao, Lan-Lan Zhou, Lin-Ping Wang, Yan Xiao, Yan-Kun Yang, Yin Zhang, Xu Meng, Xian-Liang Zhou
BACKGROUND: Information on left ventricular noncompaction (LVNC) in older people is sparse. This study aimed to investigate the clinical profile of LVNC in an older cohort. MATERIALS AND METHODS: Between August 2007 and September 2015, older patients (age ≥ 60 years) who were diagnosed with LVNC using cardiovascular magnetic resonance were prospectively enrolled at our hospital. RESULTS: A total of 35 patients (male, 80%; mean age, 65 ± 5 years) were prospectively included in this study...
August 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28863780/feature-tracking-cmr-reveals-abnormal-strain-in-preclinical-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy-a-multisoftware-feasibility-and-clinical-implementation-study
#10
Mimount Bourfiss, Davis M Vigneault, Mounes Aliyari Ghasebeh, Brittney Murray, Cynthia A James, Crystal Tichnell, Firdaus A Mohamed Hoesein, Stefan L Zimmerman, Ihab R Kamel, Hugh Calkins, Harikrishna Tandri, Birgitta K Velthuis, David A Bluemke, Anneline S J M Te Riele
BACKGROUND: Regional right ventricular (RV) dysfunction is the hallmark of Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy (ARVD/C), but is currently only qualitatively evaluated in the clinical setting. Feature Tracking Cardiovascular Magnetic Resonance (FT-CMR) is a novel quantitative method that uses cine CMR to calculate strain values. However, most prior FT-CMR studies in ARVD/C have focused on global RV strain using different software methods, complicating implementation of FT-CMR in clinical practice...
September 1, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28862937/predictors-of-intramyocardial-hemorrhage-after-reperfused-st-segment-elevation-myocardial-infarction
#11
Raquel P Amier, Ruben Y G Tijssen, Paul F A Teunissen, Rodrigo Fernández-Jiménez, Gonzalo Pizarro, Inés García-Lunar, Teresa Bastante, Peter M van de Ven, Aernout M Beek, Martijn W Smulders, Sebastiaan C A M Bekkers, Niels van Royen, Borja Ibanez, Robin Nijveldt
BACKGROUND: Findings from recent studies show that microvascular injury consists of microvascular destruction and intramyocardial hemorrhage (IMH). Patients with ST-segment elevation myocardial infarction (STEMI) with IMH show poorer prognoses than patients without IMH. Knowledge on predictors for the occurrence of IMH after STEMI is lacking. The current study aimed to investigate the prevalence and extent of IMH in patients with STEMI and its relation with periprocedural and clinical variables...
August 15, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28855658/the-diagnostic-value-of-global-longitudinal-strain-gls-on-myocardial-infarction-size-by-echocardiography-a-systematic-review-and-meta-analysis
#12
Kai-Yue Diao, Zhi-Gang Yang, Min Ma, Yong He, Qin Zhao, Xi Liu, Yue Gao, Lin-Jun Xie, Ying-Kun Guo
A systematic review and meta-analysis of prospective randomized studies were performed to evaluate the diagnostic value of measuring global longitudinal strain (GLS) using speckle tracking echocardiography (STE) in determining myocardial infarction (MI) size, which is usually measured based on late gadolinium enhancement (LGE) by cardiovascular magnetic resonance (CMR). Eleven trials with a total of 765 patients were included. The pooled correlation was 0.70 (95% CI: 0.64, 0.74) between two-dimensional (2D) GLS and the LGE percentage, and it was 0...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28840397/right-ventricular-involvement-evaluated-by-cardiac-magnetic-resonance-imaging-predicts-mortality-in-patients-with-light-chain-amyloidosis
#13
Ke Wan, Jiayu Sun, Yuchi Han, Yong Luo, Hong Liu, Dan Yang, Wei Cheng, Qing Zhang, Zhi Zeng, Yucheng Chen
Few studies have focused on right ventricular (RV) involvement in cardiac amyloidosis (CA). We investigated the prognostic value of RV assessment by cardiovascular magnetic resonance (CMR) in CA. In 2011-2014, consecutive patients with suspected CA referred for CMR were retrospectively evaluated. Demographic and baseline clinical characteristics were collected. Healthy volunteers were matched for sex and age and served as controls. All subjects underwent a contrast-enhanced CMR examination. RV size, function, and late gadolinium enhancement (LGE) were analyzed...
August 24, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28838961/cardiovascular-magnetic-resonance-to-predict-appropriate-implantable-cardioverter-defibrillator-therapy-in-ischemic-and-nonischemic-cardiomyopathy-patients-using-late-gadolinium-enhancement-border-zone-comparison-of-four-analysis-methods
#14
COMPARATIVE STUDY
Robert Jablonowski, Uzma Chaudhry, Jesper van der Pals, Henrik Engblom, Håkan Arheden, Einar Heiberg, Katherine C Wu, Rasmus Borgquist, Marcus Carlsson
BACKGROUND: Late gadolinium enhancement (LGE) border zone on cardiac magnetic resonance imaging has been proposed as an independent predictor of ventricular arrhythmias. The purpose was to determine whether size and heterogeneity of LGE predict appropriate implantable cardioverter defibrillator (ICD) therapy in ischemic cardiomyopathy (ICM) and nonischemic cardiomyopathy (NICM) patients and to evaluate 4 LGE border-zone algorithms. METHODS AND RESULTS: ICM and NICM patients who underwent LGE cardiac magnetic resonance imaging prior to ICD implantation were retrospectively included...
September 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28835250/dark-blood-late-gadolinium-enhancement-without-additional-magnetization-preparation
#15
Robert J Holtackers, Amedeo Chiribiri, Torben Schneider, David M Higgins, René M Botnar
BACKGROUND: This study evaluates a novel dark-blood late gadolinium enhancement (LGE) cardiovascular magnetic resonance imaging (CMR) method, without using additional magnetization preparation, and compares it to conventional bright-blood LGE, for the detection of ischaemic myocardial scar. LGE is able to clearly depict myocardial infarction and macroscopic scarring from viable myocardium. However, due to the bright signal of adjacent left ventricular blood, the apparent volume of scar tissue can be significantly reduced, or even completely obscured...
August 23, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28835220/cardiovascular-magnetic-resonance-feature-tracking-in-small-animals-a-preliminary-study-on-reproducibility-and-sample-size-calculation
#16
Tomas Lapinskas, Jana Grune, Seyedeh Mahsa Zamani, Sarah Jeuthe, Daniel Messroghli, Rolf Gebker, Heike Meyborg, Ulrich Kintscher, Remigijus Zaliunas, Burkert Pieske, Philipp Stawowy, Sebastian Kelle
BACKGROUND: Cardiovascular magnetic resonance feature tracking (CMR-FT) is a novel tissue tracking technique developed for noninvasive assessment of myocardial motion and deformation. This preliminary study aimed to evaluate the observer's reproducibility of CMR-FT in a small animal (mouse) model and define sample size calculation for future trials. METHODS: Six C57BL/6 J mice were selected from the ongoing experimental mouse model onsite and underwent CMR with a 3 Tesla small animal MRI scanner...
August 23, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28832366/hiv-and-myocarditis
#17
Ntobeko A B Ntusi
PURPOSE OF REVIEW: The purpose of this article is to review the literature on HIV and myocarditis and HIV-associated heart failure. RECENT FINDINGS: Currently, 17 million people are receiving antiretroviral therapy (ART) globally. There is a decrease in mortality from HIV in the last decade with increased survival in those receiving ART. HIV-associated cardiac failure is on the increase, with more cases of diastolic dysfunction reported in the ART era. The pathophysiology of HIV-associated myocarditis is multifactorial...
August 21, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28830199/myocardial-deformation-assessment-using-cardiovascular-magnetic-resonance-feature-tracking-technique
#18
Haifa M Almutairi, Redha Boubertakh, Marc E Miquel, Steffen E Petersen
BACKGROUND: Cardiovascular Magnetic Resonance (CMR) imaging is an important modality that allows the assessment of regional myocardial function by measuring myocardial deformation parameters such as strain and strain rate throughout the cardiac cycle. Feature tracking is a promising quantitative post-processing technique that is increasingly used. It is commonly applied to cine-images, in particular Steady State Free Precession (SSFP), acquired during routine CMR examinations. OBJECTIVE: To review the studies that have used feature tracking techniques in healthy subjects or patients with cardiovascular diseases (CVD)...
August 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28821947/the-influence-of-microvascular-injury-on-native-t1-and-t2-relaxation-values-after-acute-myocardial-infarction-implications-for-non-contrast-enhanced-infarct-assessment
#19
Lourens F H J Robbers, Robin Nijveldt, Aernout M Beek, Paul F A Teunissen, Maurits R Hollander, P Stefan Biesbroek, Henk Everaars, Peter M van de Ven, Mark B M Hofman, Niels van Royen, Albert C van Rossum
OBJECTIVES: Native T1 mapping and late gadolinium enhancement (LGE) imaging offer detailed characterisation of the myocardium after acute myocardial infarction (AMI). We evaluated the effects of microvascular injury (MVI) and intramyocardial haemorrhage on local T1 and T2* values in patients with a reperfused AMI. METHODS: Forty-three patients after reperfused AMI underwent cardiovascular magnetic resonance imaging (CMR) at 4 [3-5] days, including native MOLLI T1 and T2* mapping, STIR, cine imaging and LGE...
August 18, 2017: European Radiology
https://www.readbyqxmd.com/read/28818058/evaluation-of-therapy-management-and-outcome-in-takotsubo-syndrome
#20
Nadine Abanador-Kamper, Lars Kamper, Judith Wolfertz, Witali Pomjanski, Anamaria Wolf-Pütz, Melchior Seyfarth
BACKGROUND: To date there is no validated evidence for standardized treatment of patients with Takotsubo syndrome (TTS). Medication therapy after final TTS diagnosis remains unclear. Previous data on patient outcome is ambivalent. Aim of this study was to evaluate medication therapy in TTS and to analyze patient outcome. METHODS: Within an observational retrospective cohort study we analyzed our medical records and included 72 patients with TTS that underwent cardiovascular magnetic resonance imaging (CMR) after a median of 2 days interquartile range (IQR 1-3...
August 17, 2017: BMC Cardiovascular Disorders
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