keyword
MENU ▼
Read by QxMD icon Read
search

Heart anatomy

keyword
https://www.readbyqxmd.com/read/28820653/fibrous-skeleton-of-the-heart-anatomic-overview-and-evaluation-of-pathologic-conditions-with-ct-and-mr-imaging
#1
Farhood Saremi, Damián Sánchez-Quintana, Shumpei Mori, Horia Muresian, Diane E Spicer, Cameron Hassani, Robert H Anderson
The fibrous skeleton is concentrated at the base of the ventricular mass. It provides electrical insulation at the atrioventricular level and fibrous continuity for the leaflets of the mitral, aortic, and tricuspid valves. Its components include the fibrous trigones, the fibrous area of aortic-mitral continuity, the subvalvar collar of the mitral valve, the membranous septum, the interleaflet triangles, the tendon of Todaro, and likely the conus ligament. The majority of the mitral annulus is fibrous, but the only true fibrous part of the tricuspid annulus is where the valvar leaflets are attached to the central fibrous body...
August 18, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28818840/hcn4-ion-channel-function-is-required-for-early-events-that-regulate-anatomical-left-right-patterning-in-a-nodal-and-lefty-asymmetric-gene-expression-independent-manner
#2
Vaibhav P Pai, Valerie Willocq, Emily J Pitcairn, Joan M Lemire, Jean-François Paré, Nian-Qing Shi, Kelly A McLaughlin, Michael Levin
Laterality is a basic characteristic of all life forms, from single cell organisms to complex plants and animals. For many metazoans, consistent left-right asymmetric patterning is essential for the correct anatomy of internal organs, such as the heart, gut, and brain; disruption of left-right asymmetry patterning leads to an important class of birth defects in human patients. Laterality functions across multiple scales, where early embryonic, subcellular and chiral cytoskeletal events are coupled with asymmetric amplification mechanisms and gene regulatory networks leading to asymmetric physical forces that ultimately result in distinct left and right anatomical organ patterning...
August 17, 2017: Biology Open
https://www.readbyqxmd.com/read/28809063/color-and-power-doppler-combined-with-fetal-intelligent-navigation-echocardiography-fine-to-evaluate-the-fetal-heart
#3
L Yeo, R Romero
OBJECTIVE: To evaluate the performance of color and bidirectional power Doppler ultrasound combined with Fetal Intelligent Navigation Echocardiography (FINE) in examining the fetal heart. METHODS: A prospective cohort study was conducted of fetuses in the second and third trimesters with a normal heart or with congenital heart disease (CHD). One or more spatiotemporal image correlation (STIC) volume datasets, combined with color or bidirectional power Doppler (S-flow) imaging, were acquired in the apical four-chamber view...
August 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28807509/-18-f-fdg-pet-ct-angiography-in-the-diagnosis-of-infective-endocarditis-and-cardiac-device-infection-in-adult-patients-with-congenital-heart-disease-and-prosthetic-material
#4
María N Pizzi, L Dos-Subirà, Albert Roque, Nuria Fernández-Hidalgo, Hug Cuéllar-Calabria, Antonia Pijuan Domènech, María T Gonzàlez-Alujas, M T Subirana-Domènech, B Miranda-Barrio, Ignacio Ferreira-González, Juan J González-López, Albert Igual, Olga Maisterra-Santos, David García-Dorado, Joan Castell-Conesa, Benito Almirante, Manuel Escobar Amores, Pilar Tornos, Santiago Aguadé-Bruix
OBJECTIVES: Infective endocarditis (IE) and cardiac device infection (CDI) are a major complication in the growing number of patients with congenital heart disease (CHD) reaching adulthood. We aimed to evaluate the added value of (18)F-FDG-PET/CT angiography (PET/CTA) in the diagnosis of IE-CDI in adults with CHD and intravascular or intracardiac prosthetic material, in whom echocardiography (ECHO) and modified Duke Criteria (DC) have limitations because of the patients' complex anatomy...
August 9, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28806996/improved-passive-catheter-tracking-with-positive-contrast-for-cmr-guided-cardiac-catheterization-using-partial-saturation-psat
#5
Mari Nieves Velasco Forte, Kuberan Pushparajah, Tobias Schaeffter, Israel Valverde Perez, Kawal Rhode, Bram Ruijsink, Mazen Alhrishy, Nicholas Byrne, Amedeo Chiribiri, Tevfik Ismail, Tarique Hussain, Reza Razavi, Sébastien Roujol
BACKGROUND: Cardiac catheterization is a common procedure in patients with congenital heart disease (CHD). Although cardiovascular magnetic resonance imaging (CMR) represents a promising alternative approach to fluoroscopy guidance, simultaneous high contrast visualization of catheter, soft tissue and the blood pool remains challenging. In this study, a novel passive tracking technique is proposed for enhanced positive contrast visualization of gadolinium-filled balloon catheters using partial saturation (pSAT) magnetization preparation...
August 15, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28794135/pulmonary-vasodilator-therapy-is-associated-with-greater-survival-in-eisenmenger-syndrome
#6
Clare Arnott, Geoff Strange, Andrew Bullock, Adrienne C Kirby, Clare O'Donnell, Dorothy J Radford, Leeanne E Grigg, David S Celermajer
OBJECTIVE: Eisenmenger syndrome (ES) is a severe form of pulmonary hypertension in adults with congenital heart disease (CHD) and has a poor prognosis. We aimed to understand factors associated with survival in ES and particularly to assess the potential benefits of advanced pulmonary vasodilator therapy (AT). METHODS: From January 2004, when AT became generally available for patients with ES, we followed 253 ES adults from 12 adult congenital heart disease centres across Australia and New Zealand...
August 9, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28791727/morphology-and-classification-of-right-ventricular-bands-in-the-domestic-dog-canis-familiaris
#7
L A Cope
Ventricular bands, also designated as 'false tendons', are described as single or multiple strands that cross the ventricles and have no connection to valvular cusps. Previous work indicates these strands are present in the ventricles of humans and some animal hearts and not always associated with cardiac pathologies. Despite these previous studies, the published literature is limited in documenting the morphology of these strands and incidence in animals. In this study, examination of 89 hearts showed six types of ventricular bands in the right ventricle of the domestic dog...
August 9, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28783102/the-pulmonary-circulation-in-the-single-ventricle-patient
#8
REVIEW
Amanda Hauck, Nicolas Porta, Steven Lestrud, Stuart Berger
In recent decades, survival of children with complex congenital heart disease has improved considerably. Specifically, children with a variety of congenital heart defects resulting in 'single ventricle' physiology can now undergo palliative surgery that allows survival beyond the neonatal period, and in many cases into adulthood, despite having a single functional ventricular pumping chamber supplying both the pulmonary and systemic circulation. Our growing understanding of the functionally univentricular heart has resulted in freedom from Fontan failure of >50% at 25 years post-Fontan...
August 7, 2017: Children
https://www.readbyqxmd.com/read/28765741/experience-with-mechanical-circulatory-support-for-medically-intractable-low-cardiac-output-in-a-pediatric-intensive-care-unit
#9
Jung Bin Park, Jae Gun Kwak, Hong-Gook Lim, Woong-Han Kim, Jeong Ryul Lee, Yong Jin Kim
BACKGROUND AND OBJECTIVES: Mechanical circulatory support with extracorporeal membrane oxygenation (ECMO) and ventricular assist device has always been the optimal choice for treating the majority of medically intractable low cardiac output case. We retrospectively investigated our institution's outcomes and variables associated with a high risk of mortality. SUBJECTS AND METHODS: From 1999 to 2014, 86 patients who were of pediatric age or had grown-up congenital heart disease underwent mechanical circulatory support for medically intractable low cardiac output in our pediatric intensive care unit...
July 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28764604/optical-coherence-tomography-to-guide-percutaneous-treatment-of-coronary-bifurcation-disease
#10
Mathias Wolfrum, Giovanni Luigi De Maria, Adrian P Banning
Cardiovascular disease remains the most common cause of death worldwide. Enormous progress in the technology and applicability of percutaneous techniques to treat obstructive coronary heart disease has been made, and the number of percutaneous coronary interventions (PCI) is increasing. Coronary bifurcations are involved in a substantial number of PCIs and despite recent advances, bifurcation PCI remains a challenge in terms of immediate success and long-term outcome. Angiography has a limited capacity for showing important features of the 3 dimensional coronary vessel anatomy, position of stent struts and exact wire positions and is therefore suboptimal for guiding bifurcation PCI...
August 9, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28760682/the-bulbus-arteriosus-of-the-holocephalan-heart-gross-anatomy-histomorphology-pigmentation-and-evolutionary-significance
#11
Cristina Rodríguez, Miguel Lorenzale, Miguel A López-Unzu, Borja Fernández, Francisca Salmerón, Valentín Sans-Coma, Ana C Durán
This study was designed to determine whether the outflow tract of the holocephalan heart is composed of a myocardial conus arteriosus and a non-myocardial bulbus arteriosus, as is the case in elasmobranchs. This is a key issue to verify the hypothesis that these two anatomical components existed from the onset of the jawed vertebrate radiation. The Holocephali are the sister group of the elasmobranchs, sharing with them a common, still unknown Palaeozoic ancestor. The sample examined herein consisted of hearts from individuals of four species, two of them belonging to the Chimaeridae and the other two to the Rhinochimaeridae...
June 3, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/28751846/consensus-document-of-the-italian-association-of-hospital-cardiologists-anmco-italian-society-of-pediatric-cardiology-sicp-and-italian-society-of-gynaecologists-and-obstetrics-sigo-pregnancy-and-congenital-heart-diseases
#12
Innocenzo Bianca, Giovanna Geraci, Michele Massimo Gulizia, Gabriele Egidy Assenza, Chiara Barone, Marcello Campisi, Annalisa Alaimo, Rachele Adorisio, Francesca Comoglio, Silvia Favilli, Gabriella Agnoletti, Maria Gabriella Carmina, Massimo Chessa, Berardo Sarubbi, Maurizio Mongiovì, Maria Giovanna Russo, Sebastiano Bianca, Giuseppe Canzone, Marco Bonvicini, Elsa Viora, Marco Poli
The success of cardiac surgery over the past 50 years has increased numbers and median age of survivors with congenital heart disease (CHD). Adults now represent two-thirds of patients with CHD; in the USA alone the number is estimated to exceed 1 million. In this population, many affected women reach reproductive age and wish to have children. While in many CHD patients pregnancy can be accomplished successfully, some special situations with complex anatomy, iatrogenic or residual pathology are associated with an increased risk of severe maternal and fetal complications...
May 2017: European Heart Journal Supplements: Journal of the European Society of Cardiology
https://www.readbyqxmd.com/read/28751538/coronary-anatomy-in-children-with-bicuspid-aortic-valves-and-associated-congenital-heart-disease
#13
Wilke M C Koenraadt, Margot M Bartelings, Regina Bökenkamp, Adriana C Gittenberger-de Groot, Marco C DeRuiter, Martin J Schalij, Monique Rm Jongbloed
OBJECTIVE: In patients with bicuspid aortic valve (BAV), coronary anatomy is variable. High take-off coronary arteries have been described, but data are scarce, especially when associated with complex congenital heart disease (CHD). The purpose of this study was to describe coronary patterns in these patients. METHODS: In 84 postmortem heart specimens with BAV and associated CHD, position and height of the coronary ostia were studied and related to BAV morphology...
July 27, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28750134/performance-evaluation-of-a-collapsed-cone-dose-calculation-algorithm-for-hdr-ir-192-of-apbi-treatments
#14
Dario Terribilini, Veronika Vitzthum, Werner Volken, Daniel Frei, Kristina Loessl, Bob van Veelen, Peter Manser, Michael K Fix
PURPOSE: Most dose calculations for HDR brachytherapy treatments are based on the AAPM-TG43 formalism. Because patient's anatomy, heterogeneities and applicator shielding are not considered, the dose calculation based on this formalism is inaccurate in some cases. Alternatively, Collapsed Cone (CC) methods as well as Monte Carlo (MC) algorithms belong to the model based dose calculation algorithms, which are expected to improve the accuracy of calculated dose distributions. In this work, the performance of a CC algorithm, ACE in Oncentra Brachy 4...
July 27, 2017: Medical Physics
https://www.readbyqxmd.com/read/28740719/multimodality-imaging-assessment-of-mitral-valve-anatomy-in-planning-for-mitral-valve-repair-in-secondary-mitral-regurgitation
#15
REVIEW
Romain Capoulade, Nicolas Piriou, Jean-Michel Serfaty, Thierry Le Tourneau
Secondary mitral regurgitation (MR) is frequent valvular heart disease and conveys worse prognostic. Therapeutic surgical or percutaneous options are available in the context of severe symptomatic secondary MR, but the best approach to treat these patients remains unclear, given the lack of clear clinical evidence of benefit. A comprehensive evaluation of the mitral valve apparatus and the left ventricle (LV) has the ability to clearly define and characterize the disease, and thus determine the best option for the patient to improve its clinical outcomes, as well as quality of life and symptoms...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28737022/anatomic-types-of-anomalous-aortic-origin-of-a-coronary-artery-a-pictorial-summary
#16
Hitesh Agrawal, Carlos M Mery, Rajesh Krishnamurthy, Silvana Molossi
Anomalous aortic origin of a coronary artery is a congenital abnormality of the origin or course of a coronary artery that arises from the aorta. As commonly seen in congenital heart disease, a wide spectrum of anatomic variability is seen and hence, it is important for clinicians to document the precise anatomy and course of the anomalous vessel. This article describes coronary artery nomenclature using computerized tomography angiography and virtual angioscopy. These details are important for decision making, useful for surgical planning, and may have prognostic implications...
July 24, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28736822/congenital-heart-disease-and-cardiac-procedural-outcomes-in-patients-with-trisomy-21-and-turner-syndrome
#17
Raysa Morales-Demori
Congenital heart disease (CHD) is present in approximately 50% of patients with trisomy 21 (T21) and Turner syndrome (TS). According to the American Academy of Pediatrics, every patient with these genetic disorders should have a postnatal echocardiogram. T21 is usually associated with atrioventricular (30%-60%), atrial (16%-21%), or ventricular septal defects (14%-27%). TS is usually associated with left-sided heart disease. However, the spectrum of CHD in these genetic disorders is wider than those mentioned lesions...
July 24, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28734644/postmastectomy-radiation-therapy-technique-and-cardiopulmonary-sparing-a-dosimetric-comparative-analysis-between-photons-and-protons-with-free-breathing-versus-deep-inspiration-breath-hold
#18
Sagar A Patel, Hsiao-Ming Lu, Jacqueline A Nyamwanda, Rachel B Jimenez, Alphonse G Taghian, Shannon M MacDonald, Nicolas Depauw
PURPOSE: Dosimetric studies have suggested greater cardiopulmonary sparing with protons over photons for left-sided postmastectomy radiation therapy (PMRT). Modern techniques such as deep inspiration breath hold (DIBH) can help spare the heart. This analysis compares photon and proton delivery with and without DIBH. METHODS AND MATERIALS: Ten women with left breast cancer referred for PMRT on a prospective clinical trial with unfavorable cardiac anatomy underwent free breathing (FB) and DIBH computed tomography simulation...
June 21, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28733849/novel-pacing-strategies-for-heart-failure-management
#19
REVIEW
Jordan S Leyton-Mange, Theofanie Mela
Cardiac resynchronization therapy has emerged as the gold standard for heart failure patients with left ventricular systolic dysfunction and electrical dyssynchrony from an intrinsic intraventricular conduction delay or right ventricular pacing. However, the limits imposed by the coronary sinus venous anatomy restrict the applicability of the technology for many potential recipients. Furthermore, conventional resynchronization, by virtue of utilizing a single site of epicardial origin for left ventricular activation, is non-physiological...
August 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28728722/transcatheter-aortic-valve-replacement-a-review
#20
REVIEW
John H Braxton, Kelly S Rasmussen, Milind S Shah
Patients with inoperable, high-risk, and intermediate-risk aortic stenosis can now be treated with transcatheter aortic valve replacement. Centers for Medicare and Medicaid Services and the Food and Drug Administration selectively choose centers based on experience and require a collaborative, multidisciplinary team approach in the treatment and decision making for these patients. The work-up has been streamlined. Gated multislice computed tomography angiogram has emerged as the gold standard for assessment of valve anatomy and sizing of the transcatheter heart valve...
August 2017: Surgical Clinics of North America
keyword
keyword
119540
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"