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"Cardiac magnetic resonance"

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https://www.readbyqxmd.com/read/29330222/increased-sympathovagal-imbalance-evaluated-by-heart-rate-variability-is-associated-with-decreased-cardiac-t2-and-lv-function-in-transfusion-dependent-thalassemia-patients
#1
Sintip Pattanakuhar, Arintaya Phrommintikul, Adisak Tantiworawit, Sasikarn Konginn, Somdet Srichairattanakool, Siriporn C Chattipakorn, Nipon Chattipakorn
Early detection of iron overload cardiomyopathy is an important strategy in decreasing the mortality rate of patients with transfusion dependent thalassemia (TDT).  Although cardiac magnetic resonance (CMR) T2* is effective in detecting cardiac iron deposition, it is costly and not generally available.  We investigated whether heart rate variability (HRV) can be used as a screening method of iron overload cardiomyopathy in TDT patients.  HRV, evaluated by 24-hour Holter monitoring, non-transferrin bound iron (NTBI), serum ferritin, left ventricular ejection fraction (LVEF), and CMR-T2* were determined...
January 12, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29328539/early-detection-of-myocardial-involvement-by-t1-mapping-of-cardiac-mri-in-idiopathic-inflammatory-myopathy
#2
Liuyu Yu, Jianhong Sun, Jiayu Sun, Jiangbo Li, Yang Dong, Xiaoyue Zhou, Andreas Greiser, Yuchi Han, Qing Zhang, Qibing Xie, Yucheng Chen
BACKGROUND: Polymyositis (PM) and dermatomyositis (DM) are common types of idiopathic inflammatory myopathy (IIM), wherein patients are prone to adverse cardiovascular events. PURPOSE: To explore the value of cardiac magnetic resonance imaging (MRI) for detecting cardiac involvement in PM/DM patients using a T1 mapping technique. STUDY TYPE: Prospective observational study. POPULATION: In all, 25 PM/DM patients free of cardiovascular symptoms and preserved ventricular systolic function and 25 healthy volunteers matched for age and sex served as controls...
January 12, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29326780/cardiac-magnetic-resonance-of-myocardial-involvement-in-leptospirosis
#3
Onkar B Auti, Kanav Kansal, K V Shrikanth, Vimal Raj
Leptospirosis is a zoonotic infection caused by the Leptospira interrogans. Although it is endemic in tropical countries, global incidence has increased in several temperate and developed regions. Here, we present a cardiac magnetic resonance (CMR) and multidetector computer tomography (MDCT) chest features of active systemic leptospiral infection in a 19-year-old male. The MDCT appearances of lungs and CMR appearances of myocardium in icteric leptospirosis are described. Early diagnosis and prompt treatment is important to manage the cardiothoracic complications...
October 2017: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/29325362/-predicting-value-of-2014-european-guidelines-risk-prediction-model-for-sudden-cardiac-death-hcm-risk-scd-in-chinese-patients-with-hypertrophic-cardiomyopathy
#4
W X Li, L W Liu, J Wang, L Zuo, F Yang, N Kang, C H Lei
Objective: To evaluate the predicting value of the 2014 European Society of Cardiology (ESC) guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy (HCM), and to explore the predictors of adverse cardiovascular events in Chinese HCM patients. Methods: The study population consisted of a consecutive 207 HCM patients admitted in our center from October 2014 to October 2016. All patients were followed up to March 2017. The 5-year SCD probability of each patient was estimated using HCM Risk-SCD model based on electrocardiogram, echocardiography and cardiac magnetic resonance (CMR) examination results...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29321211/pathophysiology-of-degenerative-mitral-regurgitation-new-3-dimensional-imaging-insights
#5
Clemence Antoine, Francesca Mantovani, Giovanni Benfari, Sunil V Mankad, Joseph F Maalouf, Hector I Michelena, Maurice Enriquez-Sarano
Despite its high prevalence, little is known about mechanisms of mitral regurgitation in degenerative mitral valve disease apart from the leaflet prolapse itself. Mitral valve is a complex structure, including mitral annulus, mitral leaflets, papillary muscles, chords, and left ventricular walls. All these structures are involved in physiological and pathological functioning of this valvuloventricular complex but up to now were difficult to analyze because of inherent limitations of 2-dimensional imaging. The advent of 3-dimensional echocardiography, computed tomography, and cardiac magnetic resonance imaging overcoming these limitations provides new insights into mechanistic analysis of degenerative mitral regurgitation...
January 2018: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29320324/spectrum-of-coronary-artery-aneurysms-from-the-radiologic-pathology-archives
#6
Jean Jeudy, Charles S White, Seth J Kligerman, Jonathan L Killam, Allen P Burke, Jacob W Sechrist, Amar B Shah, Rydhwana Hossain, Aletta Ann Frazier
Advances in medical diagnosis reveal that coronary artery aneurysms (CAAs) may develop in several clinical scenarios and manifest variable symptoms, imaging appearances, and outcomes. Aneurysms are pathologically classified into three groups: atherosclerotic, inflammatory, and noninflammatory. The last category is associated with congenital, inherited, and connective tissue disorders. Overlap exists among the groups, because secondary atherosclerotic change may be present in an aneurysm of any cause. Atherosclerosis is the most common cause of CAAs in adults, and inflammation is considered the underlying mechanism...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29312878/case-based-approach-to-demonstrate-utility-of-cardiac-magnetic-resonance-imaging-mri-for-planning-biventricular-repair-with-inconclusive-echo-illustration-of-two-cases
#7
Supriya Gupta, Hanzhou Li, Jayanth H Keshavamurthy, Gyanendra K Sharma, Anastasios C Polimenakos
No abstract text is available yet for this article.
December 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29312750/mitral-valve-prolapse-an-underestimated-cause-of-sudden-cardiac-death-a-current-review-of-the-literature
#8
REVIEW
Michael Spartalis, Eleni Tzatzaki, Eleftherios Spartalis, Antonios Athanasiou, Demetrios Moris, Christos Damaskos, Nikolaos Garmpis, Vassilis Voudris
Mitral valve prolapse (MVP) is a common valve abnormality in general population. Despite the general belief of a benign disorder, several articles since the 1980s report sudden cardiac death (SCD) in MVP patients, with a substantial percentage of asymptomatic young individuals. The problem is to detect those patients at increased risk and implement methods that are suitable to prevent cardiac arrest. This review investigates the correlation between MVP and SCD, the understanding of the pathophysiology, the strategies for detecting those at risk and treatment options...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29311562/imaging-4d-morphology-and-dynamics-of-mitral-annulus-in-humans-using-cardiac-cine-mr-feature-tracking
#9
Shuang Leng, Shuo Zhang, Meng Jiang, Xiaodan Zhao, Rui Wu, John Allen, Ben He, Ru San Tan, Liang Zhong
Feature tracking in cine cardiac magnetic resonance (CMR) is a quantitative technique to assess heart structure and function. We investigated 4-dimensional (4D) dynamics and morphology of the mitral annulus (MA) using a novel tracking system based on radially rotational long-axis cine CMR series. A total of 30 normal controls and patients with mitral regurgitation were enrolled. The spatiotemporal changes of the MA were characterized by an in-house developed program. Dynamic and morphological parameters extracted from all 18 radial slices were used as references and were compared with those from subsequently generated sub-datasets with different degrees of sparsity...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29310688/effect-of-eicosapentaenoic-acid-docosahexaenoic-acid-on-coronary-high-intensity-plaques-detected-with-non-contrast-t1-weighted-imaging-the-aquamarine-epa-dha-study-study-protocol-for-a-randomized-controlled-trial
#10
Kazuhiro Nakao, Teruo Noguchi, Yasuhide Asaumi, Yoshiaki Morita, Tomoaki Kanaya, Masashi Fujino, Hayato Hosoda, Shuichi Yoneda, Shoji Kawakami, Toshiyuki Nagai, Kensaku Nishihira, Takahiro Nakashima, Reon Kumasaka, Tetsuo Arakawa, Fumiyuki Otsuka, Michio Nakanishi, Yu Kataoka, Yoshio Tahara, Yoichi Goto, Haruko Yamamoto, Toshimitsu Hamasaki, Satoshi Yasuda
BACKGROUND: Despite the success of HMG-CoA reductase inhibitor (statin) therapy in reducing atherosclerotic cardiovascular events, a residual risk for cardiovascular events in patients with coronary artery disease (CAD) remains. Long-chain n-3 polyunsaturated fatty acids (LC n-3 PUFAs), especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are promising anti-atherosclerosis agents that might reduce the residual CAD risk. Non-contrast T1-weighted imaging (T1WI) with cardiac magnetic resonance (CMR) less invasively identifies high-risk coronary plaques as high-intensity signals...
January 8, 2018: Trials
https://www.readbyqxmd.com/read/29309426/gadolinium-enhanced-cardiac-mr-exams-of-human-subjects-are-associated-with-significant-increases-in-the-dna-repair-marker-53bp1-but-not-the-damage-marker-%C3%AE-h2ax
#11
Jennifer S McDonald, Robert J McDonald, Jacob B Ekins, Anthony S Tin, Sylvain Costes, Tamara M Hudson, Dana J Schroeder, Kevin Kallmes, Scott H Kaufmann, Philip M Young, Aiming Lu, Ramanathan Kadirvel, David F Kallmes
Magnetic resonance imaging is considered low risk, yet recent studies have raised a concern of potential damage to DNA in peripheral blood leukocytes. This prospective Institutional Review Board-approved study examined potential double-strand DNA damage by analyzing changes in the DNA damage and repair markers γH2AX and 53BP1 in patients who underwent a 1.5 T gadolinium-enhanced cardiac magnetic resonance (MR) exam. Sixty patients were enrolled (median age 55 years, 39 males). Patients with history of malignancy or who were receiving chemotherapy, radiation therapy, or steroids were excluded...
2018: PloS One
https://www.readbyqxmd.com/read/29308736/advances-in-mechanisms-and-treatment-options-of-minoca-caused-by-vasospasm-or-microcirculation-dysfunction
#12
Jacek Bil, Natalia Pietraszek, Tomasz Pawlowski, Robert J Gil
Myocardial infarction (MI) with non-obstructive coronary arteries (MINOCA) is a syndrome with underlying many causes. MINOCA incidence is estimated to be between 5% and 25% of all MI. The outcome is extremely variable depending on the MINOCA cause. Clinical history, laboratory tests, echocardiography and coronary angiography are the first line diagnostic investigations. Nevertheless, further tests are frequently necessary (e.g. optical coherence tomography, invasive provocative test with acetylcholine or cardiac magnetic resonance) to establish the exact cause, and allowing the adequate risk stratification and management...
January 8, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29306483/left-ventricular-volume-time-relation-in-patients-with-heart-failure-with-preserved-ejection-fraction
#13
Michinari Hieda, Joshua Parker, Tanya Rajabi, Naoki Fujimoto, Paul S Bhella, Anand Prasad, Jeffrey L Hastings, Satyam Sarma, Benjamin D Levine
Elevated left ventricular (LV) filling pressures are commonly reported in patients with heart failure with preserved ejection fraction (HFpEF) and are associated with impaired relaxation in diastole. Relaxation has been assessed by Doppler, but the methods for doing so are indirect and heavily influenced by loading conditions. The aim of this study is to assess LV volume-time relation in patients with HFpEF, when correcting for left atrial driving pressure and chamber size, using cardiac magnetic resonance imaging (cMRI)...
December 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29306465/prognostic-significance-of-qrs-fragmentation-and-correlation-with-infarct-size-in-patients-with-anterior-st-segment-elevation-myocardial-infarction-treated-with-percutaneous-coronary-intervention-insights-from-the-infuse-ami-trial
#14
Björn Redfors, Ioanna Kosmidou, Aaron Crowley, Akiko Maehara, Ori Ben-Yehuda, Arslan Arif, José M Dizon, Gary S Mintz, Gregg W Stone
BACKGROUND: QRS fragmentation (fQRS) is believed to reflect myocardial scar formation in patients with coronary disease. Whether early formation of fQRS in patients with ST-segment elevation myocardial infarction (STEMI) treated with percutaneous coronary intervention (PCI) is correlated with infarct size and prognosis is unknown. We assessed the prognostic value of fQRS at 60min post-PCI and its correlation with infarct size in patients with anterior STEMI managed with primary PCI. METHODS: The INFUSE-AMI trial enrolled 452 patients with anterior STEMI undergoing primary PCI...
February 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29305187/cardiac-arrest-and-ventricular-arrhythmia-in-adults-with-ebstein-anomaly-and-left-ventricular-non-compaction
#15
Magdalena Kumor, Magdalena Lipczyńska, Elzbieta Katarzyna Biernacka, Anna Klisiewicz, Anna Wójcik, Marek Konka, Katarzyna Kożuch, Piotr Szymański, Piotr Hoffman
BACKGROUND: Ebstein anomaly is a complex, congenital heart defect that is associated with a variety of cardiac abnormalities. Studies found a similar sarcomere gene mutation in patients with Ebstein anomaly (EA) and patients with isolated left ventricular non-compaction (LVNC). AIM: We aimed to show the prevalence of LVNC and its potential relationship with severe cardiac events (VT - ventricular tachycardia, cardiac arrest) in adult patients with EA. METHODS: We conducted a retrospective search of our institutional database from 2010 to 2014 for patients with EA and reviewed patients' medical records (age, sex, clinical presentation, electrocardiographic, echocardiographic, and CMR - cardiac magnetic resonance features)...
January 2, 2018: Journal of Cardiology
https://www.readbyqxmd.com/read/29301529/increased-myocardial-extracellular-volume-assessed-by-cardiovascular-magnetic-resonance-t1-mapping-and-its-determinants-in-type-2-diabetes-mellitus-patients-with-normal-myocardial-systolic-strain
#16
Yukun Cao, Wenjuan Zeng, Yue Cui, Xiangchuang Kong, Miao Wang, Jie Yu, Shan Zhang, Jing Song, Xu Yan, Andreas Greiser, Heshui Shi
BACKGROUND: Cardiac magnetic resonance (CMR) T1 mapping and tissue-tracking strain analysis are useful quantitative techniques that can characterize myocardial tissue and mechanical alterations, respectively, in patients with early diabetic cardiomyopathy. The purpose of this study was to assess the left ventricular myocardial T1 value, extracellular volume fraction (ECV), and systolic strain in asymptomatic patients with type 2 diabetes mellitus (T2DM) and their underlying relationships with clinical parameters...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29299707/lupus-myocarditis-receiving-the-rituximab-therapy-a-monocentric-retrospective-study
#17
Chrong-Reen Wang, Yi-Shan Tsai, Wei-Ting Li
Despite high-dose corticosteroids alone or with immunosuppressive agents as the standard therapy in lupus myocarditis (LM), an immune complex-mediated critical setting, such management is still associated with resistant disease and even mortality. A retrospective study was performed for the refractory LM patients treated with rituximab (RTX), a very limited experience in English literatures. A retrospective review of the myocarditis manifestation was carried out in hospitalized Han Chinese patients with SLE from February 2007 to January 2017...
January 3, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29296166/multimodal-imaging-for-the-assessment-of-a-cardiac-mass-a-case-of-primary-cardiac-sarcoma
#18
Benjamin Abels, Steffen Pfeiffer, Jana Stix, Johannes Schwab
We present a case of an 85-year-old patient who underwent clinical work-up for chronic heart failure, acute coronary syndrome, and pulmonary embolism, until she was diagnosed with a cardiac mass that was histologically identified as sarcoma. The aim of this educational case report is to raise awareness of cardiac masses and to point out diagnostic hints towards a cardiac tumor on chest X-ray, coronary angiography, echocardiography, and chest CT. Moreover, the vital role of cardiac magnetic resonance for the diagnosis of a cardiac mass is highlighted...
November 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29296066/multimodality-imaging-assessment-of-a-caseous-calcification-of-the-mitral-valve-annulus
#19
Imen Hamdi, Chadia Chourabi, Younes Arous, Mehdi Ghommidh, Khalil Houissa, Abdeddayem Haggui, Nadhem Hajlaoui, Dhaker Lahidheb, Nejmeddine Ben Abdallah, Wafa Fehri, Habib Haouala
Caseous calcification of the mitral annulus (CCMA) is a rare echocardiographic finding. It is commonly misdiagnosed as an abscess, tumor or infective vegetation on the mitral valve. Since it is a benign process, differentiating it from malignant intra-cardiac mass is primordial to avoid unnecessary surgery. Various imaging modalities can be complimentary for definitive diagnosis. We present a case of CCMA in a 71-year-old female patient. Her medical history revealed hypertension, diabetes mellitus, hyperlipidaemia and coronary artery disease...
January 2018: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/29291201/sickle-cell-and-alpha-thalassemia-traits-resulting-in-non-atherosclerotic-myocardial-infarction-beyond-coincidence
#20
Lee S Nguyen, Alban Redheuil, Olivier Mangin, Joe-Elie Salem
Alpha-thalassemia trait and sickle trait are not commonly considered risk factors of ischemic heart disease. We report the case of a non-atherosclerotic silent myocardial infarction in a 46-year-old woman, carrier of the alpha-thalassemia trait (homozygous deletion of locus -3.7) combined with sickle cell trait. While the patient was included as healthy volunteer for a metabolic study, we performed cardiac magnetic resonance imagery showing a left ventricle apicolateral myocardial infarction. Coronary computed tomography angiography showed normal coronary arteries with a coronary calcium score of 0...
December 16, 2017: World Journal of Clinical Cases
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