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https://www.readbyqxmd.com/read/28212053/transthoracic-echocardiography-pitfalls-and-limitations-as-delineated-at-cardiac-ct-and-mr-imaging
#1
Sachin B Malik, Natalie Chen, Rex A Parker, Joe Y Hsu
Transthoracic echocardiography ( TTE transthoracic echocardiography ) is a critical tool in the field of clinical cardiology. It often serves as one of the first-line imaging modalities in the evaluation of cardiac disease owing to its low cost, portability, widespread availability, lack of ionizing radiation, and ability to evaluate both anatomy and function of the heart. Consequently, a large majority of patients undergoing a cardiac computed tomography (CT) or magnetic resonance (MR) imaging examination will have a TTE transthoracic echocardiography available for review...
February 17, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28205119/use-of-three-dimensional-computed-tomography-overlay-for-real-time-cryoballoon-ablation-in-atrial-fibrillation-reduces-radiation-dose-and-contrast-dye
#2
B Oude Velthuis, M Molenaar, H G Reinhart Dorman, J Y Stevenhagen, M F Scholten, J van der Palen, J M van Opstal
AIMS: Cryoballoon pulmonary vein (PV) isolation in patients with atrial fibrillation has proven to be effective in short-term and long-term follow-up. To visualise the PV anatomy, pre-ablation contrast pulmonary venography is commonly performed. Three-dimensional (3D) computed tomography (CT) overlay is a new technique creating a live 3D image of the left atrium by integrating a previously obtained CT scan during fluoroscopy. To evaluate the benefits of 3D CT overlay during cryoballoon ablation, we studied the use of 3D CT overlay versus contrast pulmonary venography in a randomised fashion in patients with paroxysmal atrial fibrillation undergoing cryoballoon PV isolation...
February 15, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28203474/unexpected-radiation-induced-aortic-wall-thickening-requiring-composite-graft-technique-during-off-pump-coronary-artery-bypass-grafting
#3
Paola Redaelli, Amando Gamba, Antonello Stefano Martino, Michele Triggiani
Mediastinal radiation is commonly used to treat Hodgkin's and non-Hodgkin's lymphoma, lung and breast cancer. Cardiac complications after radiation therapy are well described, although rare. A large spectrum of injuries can occur, causing long term morbidity among survivors. We describe a case of post-actinic ascending aortic wall thickening that prevented saphenous vein proximal anastomosis and was successfully managed with aortic no-touch off-pump coronary artery bypass grafting (OPCAB), 25 years after radiation therapy for Hodgkin's lymphoma...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28203163/is-the-deep-inspiration-breath-hold-technique-superior-to-the-free-breathing-technique-in-cardiac-and-lung-sparing-while-treating-both-left-sided-post-mastectomy-chest-wall-and-supraclavicular-regions
#4
Anupama Darapu, Rajesh Balakrishnan, Patricia Sebastian, Mohamathu Rafic Kather Hussain, Paul Ravindran, Subhashini John
AIMS: To evaluate the efficacy of the deep inspirational breath-hold (DIBH) technique and its dosimetric advantages over the free breathing (FB) technique in cardiac (heart and left anterior descending artery [LAD]) and ipsilateral lung sparing in left-sided post-mastectomy field-in-field conformal radiotherapy. DIBH is highly reproducible, and this study aims to find out its dosimetric benefits over FB. MATERIALS AND METHODS: Nineteen left-sided mastectomy patients were immobilized using breast boards with both arms positioned above the head...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28202051/variability-of-radiation-doses-of-cardiac-diagnostic-imaging-tests-the-radio-evinci-study-radiationdose-subproject-of-the-evinci-study
#5
Clara Carpeggiani, Eugenio Picano, Marco Brambilla, Claudio Michelassi, Juhani Knuuti, Philipp Kauffman, S Richard Underwood, Danilo Neglia
BACKGROUND: Patients with coronary artery disease can accumulate significant radiation dose through repeated exposures to coronary computed tomographic angiography, myocardial perfusion imaging with single photon emission computed tomography or positron emission tomography, and to invasive coronary angiography. Aim of the study was to audit radiation doses of coronary computed tomographic angiography, single photon emission computed tomography, positron emission tomography and invasive coronary angiography in patients enrolled in the prospective, randomized, multi-centre European study-EVINCI (Evaluation of Integrated Cardiac Imaging for the Detection and Characterization of Ischemic Heart Disease)...
February 16, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28198573/radiation-dose-benchmarks-in-pediatric-cardiac-catheterization-a-prospective-multi-center-c3po-qi-study
#6
Priscila C Cevallos, Aimee K Armstrong, Andrew C Glatz, Bryan H Goldstein, Todd M Gudausky, Ryan A Leahy, Christopher J Petit, Shabana Shahanavaz, Sara M Trucco, Lisa J Bergersen
OBJECTIVES: This study sought to update benchmark values to use a quality measure prospectively. BACKGROUND: Congenital Cardiac Catheterization Outcomes Project - Quality Improvement (C3PO-QI), a multi-center registry, defined initial radiation dose benchmarks retrospectively across common interventional procedures. These data facilitated a dose metric endorsed by the American College of Cardiology in 2014. METHODS: Data was collected prospectively by 9 C3PO-QI institutions with complete case capture between 1/1/2014 and 6/30/2015...
February 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28195834/surface-acoustic-waves-induced-micropatterning-of-cells-in-gelatin-methacryloyl-gelma-hydrogels
#7
Shahid M Naseer, Amir Manbachi, Mohamadmahdi Samandari, Philipp Walch, Yuan Gao, Yu Shrike Zhang, Farideh Davoudi, Wesley Wang, Karen Abrinia, Jonathan M Cooper, Ali Khademhosseini, Su Ryon Shin
Acoustic force patterning is an emerging technology that provides a platform to control the spatial location of cells in a rapid, accurate, yet contactless manner. However, very few studies have been reported on the usage of acoustic force patterning for the rapid arrangement of biological objects, such as cells, in a three-dimensional (3D) environment. In this study, we report on a bio-acoustic force patterning technique, which uses surface acoustic waves (SAWs) for the rapid arrangement of cells within an extracellular matrix-based hydrogel such as gelatin methacryloyl (GelMA)...
February 14, 2017: Biofabrication
https://www.readbyqxmd.com/read/28178293/%C3%AE-ct-of-ex-vivo-stained-mouse-hearts-and-embryos-enables-a-precise-match-between-3d-virtual-histology-classical-histology-and-immunochemistry
#8
Christian Dullin, Roser Ufartes, Emanuel Larsson, Sabine Martin, Marcio Lazzarini, Giuliana Tromba, Jeannine Missbach-Guentner, Diana Pinkert-Leetsch, Dörthe M Katschinski, Frauke Alves
The small size of the adult and developing mouse heart poses a great challenge for imaging in preclinical research. The aim of the study was to establish a phosphotungstic acid (PTA) ex-vivo staining approach that efficiently enhances the x-ray attenuation of soft-tissue to allow high resolution 3D visualization of mouse hearts by synchrotron radiation based μCT (SRμCT) and classical μCT. We demonstrate that SRμCT of PTA stained mouse hearts ex-vivo allows imaging of the cardiac atrium, ventricles, myocardium especially its fibre structure and vessel walls in great detail and furthermore enables the depiction of growth and anatomical changes during distinct developmental stages of hearts in mouse embryos...
2017: PloS One
https://www.readbyqxmd.com/read/28174196/sex-differences-in-the-performance-of-cardiac-computed-tomography-compared-with-functional-testing-in-evaluating-stable-chest-pain-subanalysis-of-the-multicenter-randomized-crescent-trial-calcium-imaging-and-selective-ct-angiography-in-comparison-to-functional
#9
Marisa Lubbers, Adriaan Coenen, Tobias Bruning, Tjebbe Galema, Jurgen Akkerhuis, Boudewijn Krenning, Paul Musters, Mohamed Ouhlous, Ahno Liem, Andre Niezen, Admir Dedic, Ron van Domburg, Miriam Hunink, Koen Nieman
BACKGROUND: Cardiac computed tomography (CT) represents an alternative diagnostic strategy for women with suspected coronary artery disease, with potential benefits in terms of effectiveness and cost-efficiency. METHODS AND RESULTS: The CRESCENT trial (Calcium Imaging and Selective CT Angiography in Comparison to Functional Testing for Suspected Coronary Artery Disease) prospectively randomized 350 patients with stable angina (55% women; aged 55±10 years), mostly with an intermediate coronary artery disease probability, between cardiac CT and functional testing...
February 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28173877/bilateral-ovarian-micrometastatic-adenocarcinoma-upon-prophylactic-oophorectomy-concurrent-with-low-anterior-resection-for-rectal-cancer
#10
Robin Irons, Erin McIntosh, Alexandre Hageboutros, David Warshal, Steven McClane
BACKGROUND: This case report draws attention to the debated role of prophylactic oophorectomy in women undergoing definitive surgical resection of colon and rectal cancers. It can be challenging to discern the indications and appropriate patient population for this procedure based on the current literature. Potential benefits include treatment and prevention of metastatic disease, preventing development of primary ovarian cancer, and prolonging survival. Negative effects include an increase in operative time and potential morbidity, development of osteoporosis, the risk of cardiac events, and decreasing sexual function...
February 7, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28160298/fluoroless-catheter-ablation-of-cardiac-arrhythmias-a-5-year-experience
#11
Mansour Razminia, M Cameron Willoughby, Hany Demo, Hesam Keshmiri, Theodore Wang, Oliver J D'Silva, Terry A Zheutlin, Hakeem Jibawi, Paul Okumale, Richard F Kehoe
BACKGROUND: Catheter ablations have been traditionally performed with the use of fluoroscopic guidance, which exposes the patient and staff to the inherent risks of radiation. We have developed techniques to eliminate the use of fluoroscopy during cardiac ablations and have been performing completely fluoroless catheter ablations on our patients for over 5 years. METHODS: We present a retrospective analysis of the safety, efficacy, and feasibility data from 500 consecutive patients who underwent nonfluoroscopic catheter ablation, targeting a total of 639 arrhythmias, including atrioventricular reciprocating tachycardia (AVRT), atrioventricular nodal reentrant tachycardia (AVNRT), atrial tachycardia (AT), atrial fibrillation (AF), premature ventricular contractions (PVC), and ventricular tachycardia (VT)...
February 3, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28152766/outcome-analysis-of-breast-cancer-patients-treated-with-cardiotoxic-agents-in-the-community-setting-a-single-institution-experience
#12
Munthir Mansour, Todd W Gress, Maria R B Tria Tirona
: 213 Background: Anthracyclines and anti-Her-2 targeted therapy are commonly used effective breast cancer treatments. They are known to decrease Left Ventricular Ejection Fraction (LVEF), which may increase patients' morbidity and mortality. There is currently no consensus on post treatment cardiac follow-up. Recent observations suggested that ACEI and B blocker drugs could have cardioprotective effects. We conducted a retrospective study to assess patients' cardiac outcome using post-treatment LVEF follow-up and effect of ACEI and B blocker on cardiac outcome for breast cancer patients who received cardiotoxic agents in our institution...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28151876/late-onset-radiation-induced-constrictive-pericarditis-and-cardiomyopathy-after-radiotherapy-a-case-report
#13
Xiao-Feng Zhuang, Yan-Min Yang, Xiao-Lu Sun, Zhong-Kai Liao, Jie Huang
INTRODUCTION: Radiation-induced heart disease (RIHD) is a serious side effect of cancer treatment, including coronary artery disease, valvular cardiac dysfunction, cardiomyopathy, aortopathy, and chronic constrictive pericarditis. Herein, this case we present was diagnosed as radiation-induced constrictive pericarditis and cardiomyopathy by means of cardiac magnetic resonance (CMR) and transthoracic echocardiogram, finally confirmed by pathology after performing heart transplant operation...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28149922/automated-patient-specific-estimation-of-regional-imparted-energy-and-dose-from-tube-current-modulated-computed-tomography-exams-across-13-protocols
#14
Jeremiah Sanders, Xiaoyu Tian, William Paul Segars, John Boone, Ehsan Samei
Currently, computed tomography (CT) dosimetry relies on surrogates for dose, such as CT dose index and size-specific dose estimates, rather than dose per se. Organ dose is considered as the gold standard for radiation dosimetry. However, organ dose estimation requires precise knowledge of organ locations. Regional imparted energy and dose can also be used to quantify radiation burden and are beneficial because they do not require knowledge of organ size or location. This work investigated an automated technique to retrospectively estimate the imparted energy from tube current-modulated (TCM) CT exams across 13 protocols...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28149470/frequency-of-craniofacial-pain-in-patients-with-ischemic-heart-disease
#15
Mahin Bakhshi, Rezvan Rezaei, Maryam Baharvand, Sedigheh Bakhtiari
BACKGROUND: Referred craniofacial pain of cardiac origin might be the only symptom of ischemic heart accidents. This study aimed to determine the frequency of craniofacial pain in patients with ischemic heart disease. MATERIAL AND METHODS: This cross-sectional study was accomplished on 296 patients who met the criteria of having ischemic heart disease. Data regarding demographics, medical history and referred craniofacial pain were recorded in data forms. In addition, patients underwent oral examination to preclude any source of dental origin...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28143884/risk-of-heart-failure-in-survivors-of-hodgkin-lymphoma-effects-of-cardiac-exposure-to-radiation-and-anthracyclines
#16
Frederika A van Nimwegen, Georgios Ntentas, Sarah C Darby, Michael Schaapveld, Michael Hauptmann, Pieternella J Lugtenburg, Cecile P M Janus, Laurien Daniels, Flora E van Leeuwen, David J Cutter, Berthe M P Aleman
Hodgkin lymphoma (HL) survivors treated with radiotherapy and/or chemotherapy are known to have increased risks of heart failure (HF), but a radiation dose-response relationship has not previously been derived. A case-control study, nested in a cohort of 2,617 five-year survivors of HL diagnosed before age 51 years during 1965-1995, was conducted. Cases (n=91) had moderate or severe HF as their first cardiovascular diagnosis. Controls (n=278) were matched to cases on age, gender and HL diagnosis date. Treatment and follow-up information were abstracted from medical records...
January 31, 2017: Blood
https://www.readbyqxmd.com/read/28132957/risk-of-heart-failure-with-preserved-ejection-fraction-in-older-women-after-contemporary-radiotherapy-for-breast-cancer
#17
Hirofumi Saiki, Ivy A Petersen, Christopher G Scott, Kent R Bailey, Shannon M Dunlay, Randi R Finley, Kathryn J Ruddy, Elizabeth Yan, Margaret M Redfield
BACKGROUND: -Cardiomyocytes are resistant to radiation. However, cardiac radiation exposure causes coronary microvascular endothelial inflammation, a perturbation implicated in the pathogenesis of heart failure (HF) and particularly, HF with preserved ejection fraction (HFpEF). Radiotherapy for breast cancer results in variable cardiac radiation exposure and may increase the risk of HF. METHODS: -We conducted a population-based case-control study of incident HF in 170 female residents of Olmsted County, Minnesota (59 cases and 111 controls) who underwent contemporary (1998-2013) radiotherapy for breast cancer utilizing computed tomography-assisted radiotherapy planning...
January 29, 2017: Circulation
https://www.readbyqxmd.com/read/28132542/-atypical-complaint-in-myocardial-ischaemia-belching
#18
Nóra Turi-Kováts, Hrisula Arabadzisz, András Zsoldos, János Tomcsányi
While educating non-medical personnel on acute coronary syndrome we often emphasize the importance of early recognition and urgent transfer to acute cardiac center of patients with acute myocardial infarction. Aside from typical symptoms of chest tightness and pain radiating to shoulder, arm and jaw, angina often presents with atypical, non-cardiac complaints. These symptoms, often suggesting gastrointestinal problems, can sometimes mislead even the most experienced physicians. We would like to present the case of an 83-year-old woman with several decades long history of ischaemic heart disease, who recently developed a new anginal symptom: lound, uncontrollable belching...
February 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28130653/addressing-knowledge-gaps-in-the-2013-acc-aha-guideline-on-the-assessment-of-cardiovascular-risk-a-review-of-recent-coronary-artery-calcium-literature
#19
REVIEW
Vasanth Sathiyakumar, Roger S Blumenthal, Khurram Nasir, Seth S Martin
PURPOSE OF REVIEW: Coronary artery calcium (CAC) has been proposed as an integrator of information from traditionally measured, non-traditionally measured, and unmeasured risk factors for coronary atherosclerosis. The 2013 American College of Cardiology/American Heart Association Guideline on the Assessment of Cardiovascular Risk identified several knowledge gaps regarding CAC, including radiation risks, cost-effectiveness, and improving discrimination and reclassification of estimated risk over the Pooled Cohort Equations in the ACC/AHA Atherosclerotic Cardiovascular Disease Estimator...
February 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28130566/-stress-echocardiography-and-its-central-role-in-cardiac-diagnostics
#20
R Leischik, B Dworrak, T Cremer, S Amirie, H Littwitz
Stress echocardiography (SE) has an established central role as a diagnostic tool in cardiology. It is not only an established method for the diagnostic and prognostic stratification of patients with coronary artery disease but also shows an emerging value for assessment of cardiac function beyond coronary artery disease. The enormous conceptual technological development of ultrasound technology (Doppler, digitizing, tissue Doppler imaging, strain technology, 3‑D-echo and new ultrasound contrast agents) has led to applications of SE in almost all diagnostic fields of cardiology...
January 27, 2017: Herz
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