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Cardiovascular MRI

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https://www.readbyqxmd.com/read/29455549/multiple-endocrine-neoplasia-2a-men-2a-syndrome
#1
J Breza, J Breza
INTRODUCTION: In the MEN 2A syndrome, which is the most common of the three types of MEN, three endocrine systems are affected simultaneously or subsequently by the development of tumours manifested by medullary thyroid gland carcinoma, pheochromocytoma (often bilateral) and hyperparathyroidism. MATERIAL AND METHODS: 27 patients from 3 families affected by MEN 2A syndrome were examined clinically (by detecting the effects of catecholamine overproduction), biochemically (screening for metanephrine and normetanephrine in the serum), visualization (CT, MRI, MIBG, PET CT) and some of them also genetically (DNA fragment analysis obtained by PCR amplification)...
2018: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29452906/extracranial-arterial-wall-volume-is-increased-and-shows-relationships-with-vascular-mri-measures-in-idiopathic-parkinson-s-disease
#2
Stephen Ball, Sarah Al-Bachari, Laura M Parkes, Hedley C A Emsley, Charles N McCollum
OBJECTIVE: Idiopathic Parkinson's disease (IPD) is the second most common neurodegenerative disorder, often complicated by dementia. Cardiovascular risk factors and spontaneous cerebral emboli (SCE) are strongly associated with Alzheimer's (AD) and vascular dementia (VaD). We measured SCE in the middle cerebral artery and arterial wall volume in the extracranial arteries in patients with IPD and controls, and explored the relationships with structural and physiological MRI brain neurovascular measures...
February 10, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29450409/microstructurally-anchored-cardiac-kinematics-by-combining-in-vivo-dense-mri-and-cdti
#3
Luigi E Perotti, Patrick Magrath, Ilya A Verzhbinsky, Eric Aliotta, Kévin Moulin, Daniel B Ennis
Metrics of regional myocardial function can detect the onset of cardiovascular disease, evaluate the response to therapy, and provide mechanistic insight into cardiac dysfunction. Knowledge of local myocardial microstructure is necessary to distinguish between isotropic and anisotropic contributions of local deformation and to quantify myofiber kinematics, a microstructurally anchored measure of cardiac function. Using a computational model we combine in vivo cardiac displacement and diffusion tensor data to evaluate pointwise the deformation gradient tensor and isotropic and anisotropic deformation invariants...
June 2017: Functional Imaging and Modeling of the Heart: ... International Workshop, FIMH ..., Proceedings. FIMH
https://www.readbyqxmd.com/read/29423576/subclinical-changes-in-mri-determined-right-ventricular-volumes-and-function-in-subjects-with-prediabetes-and-diabetes
#4
Hannah Patscheider, Roberto Lorbeer, Sigrid Auweter, Anina Schafnitzel, Christian Bayerl, Adrian Curta, Wolfgang Rathmann, Margit Heier, Christa Meisinger, Annette Peters, Fabian Bamberg, Holger Hetterich
OBJECTIVES: The aim of this study was to assess subclinical changes in right ventricular volumes and function in subjects with prediabetes and diabetes and controls without a history of cardiovascular disease. METHODS: Data from 400 participants in the KORA FF4 study without self-reported cardiovascular disease who underwent 3-T whole-body MRI were obtained. The right ventricle was evaluated using the short axis and a four-chamber view. Diabetes was defined according to WHO criteria...
February 8, 2018: European Radiology
https://www.readbyqxmd.com/read/29422871/age-related-vascular-changes-affect-turbulence-in-aortic-blood-flow
#5
Hojin Ha, Magnus Ziegler, Martin Welander, Niclas Bjarnegård, Carl-Johan Carlhäll, Marcus Lindenberger, Toste Länne, Tino Ebbers, Petter Dyverfeldt
Turbulent blood flow is implicated in the pathogenesis of several aortic diseases but the extent and degree of turbulent blood flow in the normal aorta is unknown. We aimed to quantify the extent and degree of turbulece in the normal aorta and to assess whether age impacts the degree of turbulence. 22 young normal males (23.7 ± 3.0 y.o.) and 20 old normal males (70.9 ± 3.5 y.o.) were examined using four dimensional flow magnetic resonance imaging (4D Flow MRI) to quantify the turbulent kinetic energy (TKE), a measure of the intensity of turbulence, in the aorta...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29417294/a-pilot-investigation-on-impact-of-participation-in-a-long-term-follow-up-clinic-ltfu-on-breast-cancer-and-cardiovascular-screening-among-women-who-received-chest-radiation-for-hodgkin-lymphoma
#6
K Baxstrom, B A Peterson, C Lee, R I Vogel, A H Blaes
BACKGROUND: Women treated with chest radiation for Hodgkin lymphoma (HL) are at significantly increased risk of breast cancer and cardiovascular disease. HL survivors are recommended to have annual dual screening with mammogram (MMG) and breast magnetic resonance imaging (MRI). They are also recommended to undergo echocardiogram (echo) 5 years after completion of radiation. We performed a pilot study to characterize the women who are and are not receiving proper dual screening for breast cancer and baseline echo, and to examine the impact of a LTFU clinic consultation on screening...
February 7, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29406941/cardiac-imaging-modalities-and-appropriate-use
#7
REVIEW
Paul Gabriel Peterson, Michael Berge, John P Lichtenberger, Maureen N Hood, Vincent B Ho
Cardiovascular imaging with calcium scoring computed tomography (CT), coronary CT angiography (CCTA), and cardiac MRI (CMR) have advanced rapidly over recent years. These imaging modalities have increased in availability, accessibility, and clinical practicality due to technological advances allowing for significant radiation dose reduction for high-quality CCTA and for rapid and reliable imaging techniques in CMR. Hardware and software developments are continually increasing efficiency and accuracy of postprocessing...
March 2018: Primary Care
https://www.readbyqxmd.com/read/29401483/alcohol-consumption-but-not-smoking-is-associated-with-higher-mr-derived-liver-fat-in-an-asymptomatic-study-population
#8
Christian Bayerl, Roberto Lorbeer, Margit Heier, Christa Meisinger, Susanne Rospleszcz, Anina Schafnitzel, Hannah Patscheider, Sigrid Auweter, Annette Peters, Birgit Ertl-Wagner, Maximilian Reiser, Fabian Bamberg, Holger Hetterich
BACKGROUND: The aim of our study was to determine the relation of alcohol consumption and cigarette smoking on continuous-measured hepatic fat fraction (HFF) in a population free of cardiovascular disease. We suggested a direct correlation of alcohol consumption with HFF and increased HFF in former smokers compared to current smokers. METHODS: Data from 384 subjects (mean age: 56 years, 58% men) of a population-based cohort study (KORA) were included in a cross-sectional design...
2018: PloS One
https://www.readbyqxmd.com/read/29399871/the-correlation-between-cardiac-magnetic-resonance-t2-and-left-ventricular-global-longitudinal-strain-in-people-with-%C3%AE-thalassemia
#9
Mozhgan Parsaee, Nehzat Akiash, Azita Azarkeivan, Zahra Alizadeh Sani, Ahmad Amin, Mahboubeh Pazoki, Niloufar Samiei, Mohammad Ali Jalili, Mohammad Hassan Adel, Nahid Rezaian
BACKGROUND: Heart failure is the biggest cause of mortality and morbidity in people with thalassemia, and iron deposition in cardiac tissue impairs cardiovascular function. Therefore, early detection of cardiac involvement is important to improve the prognosis in these individuals. METHOD: Two- and three-dimensional echocardiography was performed to evaluate left ventricular ejection fraction (LVEF), left ventricular volumes and diameters, and global longitudinal strain (GLS) in 130 individuals with β-thalassemia using the speckle tracking method...
February 4, 2018: Echocardiography
https://www.readbyqxmd.com/read/29388794/the-role-of-visceral-and-subcutaneous-adipose-tissue-measurements-and-their-ratio-by-magnetic-resonance-imaging-in-subjects-with-prediabetes-diabetes-and-healthy-controls-from-a-general-population-without-cardiovascular-disease
#10
Corinna Storz, Sophia D Heber, Susanne Rospleszcz, Jürgen Machann, Sabine Sellner, Konstantin Nikolaou, Roberto Lorbeer, Sergios Gatidis, Stefanie Elser, Annette Peters, Christopher L Schlett, Fabian Bamberg
OBJECTIVE: To study the relationship of area- and volumetric-based visceral and subcutaneous adipose tissue (VAT and SAT) by magnetic resonance imaging (MRI) and their ratio in subjects with impaired glucose metabolism from the general population. METHODS: Subjects from a population-based cohort with established prediabetes, diabetes and healthy controls without prior cardiovascular diseases underwent 3 Tesla MRI. VAT and SAT were assessed as total volume and area on a single slice, and their ratio (VAT/SAT) was calculated...
February 1, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29386064/the-growth-and-evolution-of-cardiovascular-magnetic-resonance-a-20-year-history-of-the-society-for-cardiovascular-magnetic-resonance-scmr-annual-scientific-sessions
#11
REVIEW
Daniel C Lee, Michael Markl, Erica Dall'Armellina, Yuchi Han, Sebastian Kozerke, Titus Kuehne, Sonia Nielles-Vallespin, Daniel Messroghli, Amit Patel, Tobias Schaeffter, Orlando Simonetti, Anne Marie Valente, Jonathan W Weinsaft, Graham Wright, Stefan Zimmerman, Jeanette Schulz-Menger
BACKGROUND AND PURPOSE: The purpose of this work is to summarize cardiovascular magnetic resonance (CMR) research trends and highlights presented at the annual Society for Cardiovascular Magnetic Resonance (SCMR) scientific sessions over the past 20 years. METHODS: Scientific programs from all SCMR Annual Scientific Sessions from 1998 to 2017 were obtained. SCMR Headquarters also provided data for the number and the country of origin of attendees and the number of accepted abstracts according to type...
January 31, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29383529/accelerated-real-time-cardiac-mri-using-iterative-sparse-sense-reconstruction-comparing-performance-in-patients-with-sinus-rhythm-and-atrial-fibrillation
#12
Bradley D Allen, Maria L Carr, Michael Markl, Michael O Zenge, Michaela Schmidt, Mariappan S Nadar, Bruce Spottiswoode, Jeremy D Collins, James C Carr
OBJECTIVES: To compare accelerated real-time cardiac MRI (CMR) using sparse spatial and temporal undersampling and non-linear iterative SENSE reconstruction (RT IS SENSE) with real-time CMR (RT) and segmented CMR (SEG) in a cohort that included atrial fibrillation (AF) patients. METHODS: We evaluated 27 subjects, including 11 AF patients, by acquiring steady-state free precession cine images covering the left ventricle (LV) at 1.5 T with SEG (acceleration factor 2, TR 42 ms, 1...
January 30, 2018: European Radiology
https://www.readbyqxmd.com/read/29382098/on-the-design-of-an-efficient-cardiac-health-monitoring-system-through-combined-analysis-of-ecg-and-scg-signals
#13
Prasan Kumar Sahoo, Hiren Kumar Thakkar, Wen-Yen Lin, Po-Cheng Chang, Ming-Yih Lee
Cardiovascular disease (CVD) is a major public concern and socioeconomic problem across the globe. The popular high-end cardiac health monitoring systems such as magnetic resonance imaging (MRI), computerized tomography scan (CT scan), and echocardiography (Echo) are highly expensive and do not support long-term continuous monitoring of patients without disrupting their activities of daily living (ADL). In this paper, the continuous and non-invasive cardiac health monitoring using unobtrusive sensors is explored aiming to provide a feasible and low-cost alternative to foresee possible cardiac anomalies in an early stage...
January 28, 2018: Sensors
https://www.readbyqxmd.com/read/29369050/endocardial-center-motion-for-quantification-of-left-ventricular-discoordination-in-heart-failure-using-cine-mri
#14
Salvatore Saporito, Patrick Houthuizen, Jean-Paul M M Aben, Jos J M Westenberg, Harrie C M van Den Bosch, Hans C van Assen, Massimo Mischi
To compare a novel cardiovascular magnetic resonance technique for the assessment of left ventricular (LV) mechanical discoordination by characterizing the endocardial center motion (ECM) in short-axis cine MRI in healthy volunteers and heart failure patients with left bundle branch block (HF-LBBB), Materials and Methods: To evaluate ECM analysis as mechanical discoordination measure, we retrospectively compared spatial and temporal features of the ECM between a group of healthy volunteers (n=14) and conduction defect patients (HF-LBBB, n=31)...
January 25, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29368226/lateral-medullary-infarction-with-cardiovascular-autonomic-dysfunction-an-unusual-presentation-with-review-of-the-literature
#15
REVIEW
Tridu R Huynh, Barbara Decker, Timothy J Fries, Ajay Tunguturi
PURPOSE: We report an unusual case of lateral medullary infarction presenting with orthostatic hypotension with pre-syncope without vertigo or Horner's syndrome. METHODS: Case report with review of the literature. RESULTS: A 67-year-old man presented with pre-syncope and ataxia without vertigo. Initial brain CT and MRI were normal. Neurological evaluation revealed right-beating nystagmus with left gaze, vertical binocular diplopia, right upper-extremity dysmetria, truncal ataxia with right axial lateropulsion, and right-facial and lower extremity hypoesthesia...
January 24, 2018: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/29356966/pheochromocytomas-and-hypertension
#16
REVIEW
Joseph M Pappachan, Nyo Nyo Tun, Ganesan Arunagirinathan, Ravinder Sodi, Fahmy W F Hanna
PURPOSE OF REVIEW: Pheochromocytomas and paragangliomas (PPGLs) are uncommon catecholamine-producing neuroendocrine neoplasms that usually present with secondary hypertension. This review is to update the current knowledge about these neoplasms, the pathophysiology, genetic aspects and diagnostic and therapeutic algorithms based on scientific literature mostly within the past 3 years. RECENT FINDINGS: Eighty to eighty-five percent of PPGLs arise from the adrenal medulla (pheochromocytomas; PCCs) and the remainder from the autonomic neural ganglia (paragangliomas; PGLs)...
January 22, 2018: Current Hypertension Reports
https://www.readbyqxmd.com/read/29345604/a-new-approach-of-three-dimensional-guidance-in-paediatric-cath-lab-segmented-and-tessellated-heart-models-for-cardiovascular-interventions-in-chd
#17
Nicole Ehret, Muhannad Alkassar, Sven Dittrich, Robert Cesnjevar, André Rüffer, Michael Uder, Oliver Rompel, Matthias Hammon, Martin Glöckler
BACKGROUND: Optimal imaging is essential for catheter-based interventions in CHD. The three-dimensional models in volume-rendering technique currently in use are not standardised. This paper investigates the feasibility and impact of novel three-dimensional guidance with segmented and tessellated three-dimensional heart models in catheterisation of CHD. In addition, a nearly radiation-free two- to three-dimensional registration and a biplane overlay were used. Methods and results We analysed 60 consecutive cases in which segmented tessellated three-dimensional heart models were merged with live fluoroscopy images and aligned using the tracheal bifurcation as a fiducial mark...
January 18, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29344990/self-gated-golden-angle-spiral-4d-flow-mri
#18
Rene Bastkowski, Kilian Weiss, David Maintz, Daniel Giese
PURPOSE: The acquisition of 4D flow magnetic resonance imaging (MRI) in cardiovascular applications has recently made large progress toward clinical feasibility. The need for simultaneous compensation of cardiac and breathing motion still poses a challenge for widespread clinical use. Especially, breathing motion, addressed by gating approaches, can lead to unpredictable and long scan times. The current work proposes a time-efficient self-gated 4D flow sequence that exploits up to 100% of the acquired data and operates at a predictable scan time...
January 17, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29343706/caloric-restriction-lowers-endocannabinoid-tonus-and-improves-cardiac-function-in-type-2-diabetes
#19
Huub J van Eyk, Linda D van Schinkel, Vasudev Kantae, Charlotte E A Dronkers, Jos J M Westenberg, Albert de Roos, Hildo J Lamb, J Wouter Jukema, Amy C Harms, Thomas Hankemeier, Mario van der Stelt, Ingrid M Jazet, Patrick C N Rensen, Johannes W A Smit
BACKGROUND/OBJECTIVES: Endocannabinoids (ECs) are associated with obesity and ectopic fat accumulation, both of which play a role in the development of cardiovascular disease (CVD) in type 2 diabetes (T2D). The effect of prolonged caloric restriction on ECs in relation to fat distribution and cardiac function is still unknown. Therefore, our aim was to investigate this relationship in obese T2D patients with coronary artery disease (CAD). SUBJECTS/METHODS: In a prospective intervention study, obese T2D patients with CAD (n = 27) followed a 16 week very low calorie diet (VLCD; 450-1000 kcal/day)...
January 17, 2018: Nutrition & Diabetes
https://www.readbyqxmd.com/read/29343465/sex-differences-in-cerebrovascular-pathologies-on-flair-in-cognitively-unimpaired-elderly
#20
Farzan Fatemi, Kejal Kantarci, Jonathan Graff-Radford, Gregory M Preboske, Stephen D Weigand, Scott A Przybelski, David S Knopman, Mary M Machulda, Rosebud O Roberts, Michelle M Mielke, Ronald C Petersen, Clifford R Jack, Prashanthi Vemuri
OBJECTIVE: To examine sex differences in cerebrovascular pathologies (CVPs) as seen on fluid-attenuated inversion recovery (FLAIR) MRI and in cardiovascular and metabolic risk factors in a population-based cognitively unimpaired cohort and to examine whether sex is independently associated with FLAIR findings after accounting for differences in important midlife risk factors. METHODS: We identified 1,301 cognitively normal participants (663 men and 638 women) enrolled in the Mayo Clinic Study of Aging (age ≥70 years) who had FLAIR MRI and ascertained total burden of white matter (WM) hyperintensities (WMH), subcortical infarctions, and cortical infarctions...
January 17, 2018: Neurology
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