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Cardiac computed tomography angiography

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https://www.readbyqxmd.com/read/28821295/coexistence-of-congenital-left-ventricular-aneurysm-and-prominent-left-ventricular-trabeculation-in-a-patient-with-ldb3-mutation-a-case-report
#1
Shengshuai Shan, Xiaoxiao He, Lin He, Min Wang, Chengyun Liu
BACKGROUND: The coexistence of congenital left ventricular aneurysm and abnormal cardiac trabeculation with gene mutation has not been reported previously. Here, we report a case of coexisting congenital left ventricular aneurysm and prominent left ventricular trabeculation in a patient with LIM domain binding 3 gene mutation. CASE PRESENTATION: A 30-year-old Asian man showed paroxysmal sinus tachycardia and Q waves in an electrocardiogram health check. There were no specific findings in physical examinations and serological tests...
August 19, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28817814/cardiac-computed-tomography-angiographic-findings-as-predictors-of-late-heart-failure-in-an-asymptomatic-diabetic-cohort-an-8-year-prospective-follow-up-study
#2
David A Halon, Jubran Ayman, Ronen Rubinshtein, Barak Zafrir, Mali Azencot, Basil S Lewis
OBJECTIVES: Predictive models for heart failure (HF) in heterogeneous populations have had limited success. We examined cardiac computed tomography angiography (CTA) predictors of HF or cardiovascular death (HF-CVD) in a prospective study of asymptomatic diabetics undergoing baseline assessment by CTA. METHODS: The subjects (n = 735, aged 55-74 years, 51.2% women) had no clinical history of cardiovascular disease at study entry. Coronary artery calcium (CAC) score, CTA-defined coronary atherosclerosis, cardiac chamber volumes, and clinical data were collected and late outcome events recorded over 8...
August 18, 2017: Cardiology
https://www.readbyqxmd.com/read/28812383/evaluation-of-relationship-between-coronary-artery-status-evaluated-by-coronary-computed-tomography-angiography-and-development-of-cardiomyopathy-in-carbon-monoxide-poisoned-patients-with-myocardial-injury-a-prospective-observational-study
#3
Yong Sung Cha, Hyun Kim, Yoonsuk Lee, Woocheol Kwon, Jung-Woo Son, Hyun Youk, Hyung Il Kim, Oh Hyun Kim, Kyung Hye Park, Kyoung-Chul Cha, Kang Hyun Lee, Sung Oh Hwang
OBJECTIVES: Whether coronary artery changes are a main mechanism in the development of carbon monoxide (CO)-induced cardiomyopathy remains unknown. We investigated the effects of coronary artery stenosis on the presence or patterns of cardiomyopathy in CO-poisoned patients with myocardial injury defined as elevation of troponin I. MATERIALS AND METHODS: This prospective observational study collected data from consecutive patients who were diagnosed with CO poisoning and myocardial injury during the 24-month study period...
August 16, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28810576/application-of-low-dose-dual-source-computed-tomography-angiography-in-children-with-complex-congenital-heart-disease
#4
Xian-Feng Chen, Fan Jiang, Lin Li, Yan Chen, Xin Chen, Yan-Yan Jiang, Li Xiang, Xiao-Jing Ma
The objective of the present study was to evaluate image quality and radiation dosage using a low-dose prospectively electrocardiogram (ECG)-gated computed tomography (CT) protocol for dual-source angiography in children with complex congenital heart disease. A total of 206 patients with complex congenital heart disease were equally assigned into two groups at random. The children in group A underwent low-dose retrospective ECG-gated CT scanning with an ECG-pulsing technique, and group B underwent prospective ECG-gated scanning with an ECG-pulsing technique...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28805032/improving-outcomes-after-cabg-and-pci
#5
EDITORIAL
Robert D Safian
Within 1 year of coronary artery bypass surgery , 64% of percutaneous coronary interventions were performed for graft failure and 36% for native vessel disease. Predictors of graft failure were small diameter of the graft and native vessel, poor distal run-off, and disease distal to the graft. In the near future, cardiac computed tomography angiography (CCTA) and fractional flow reserve by CT (FFRct) will incorporate accurate determination of coronary anatomy and the presence and extent of myocardial ischemia...
August 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28801799/double-versus-single-source-left-sided-coronary-revascularization-using-bilateral-internal-thoracic-artery-graft-alone
#6
Giuseppe Gatti, Gianluca Castaldi, Marco Morosin, Irena Tavcar, Manuel Belgrano, Bernardo Benussi, Gianfranco Sinagra, Aniello Pappalardo
Left-sided coronary revascularization with bilateral internal thoracic artery (BITA) graft is performed usually either with an in situ (double source) or Y-graft configuration (single source). Two hundred fifty-three (mean age, 67.1 ± 9.5 years) patients underwent isolated left-sided coronary revascularization with BITA graft alone at the present authors' institution (2000-2015). Skeletonized BITA grafts were used either in an in situ (n = 199) or Y-graft configuration (n = 54). Forty pairs were identified with the propensity score-matching...
August 11, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28797740/framework-for-detection-and-localization-of-coronary-non-calcified-plaques-in-cardiac-cta-using-mean-radial-profiles
#7
Muhammad Moazzam Jawaid, Atif Riaz, Ronak Rajani, Constantino Carlos Reyes-Aldasoro, Greg Slabaugh
BACKGROUND AND OBJECTIVE: The high mortality rate associated with coronary heart disease (CHD) has driven intensive research in cardiac imaging and image analysis. The advent of computed tomography angiography (CTA) has turned non-invasive diagnosis of cardiovascular anomalies into reality as calcified coronary plaques can be easily identified due to their high intensity values. However, the detection of non-calcified plaques in CTA is still a challenging problem because of lower intensity values, which are often similar to the nearby blood and muscle tissues...
August 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28781240/outcomes-in-patients-with-contained-ruptures-of-the-aortic-annulus-after-transcatheter-aortic-valve-implantation-with-balloon-expandable-devices
#8
Philipp Breitbart, Jan Minners, Gregor Pache, Jochen Reinöhl, Nicolaj Christopher Hansson, Bjarne L Nørgaard, Franz-Josef Neumann, Philipp Ruile
AIMS: To evaluate incidence and long-term outcomes of patients with contained ruptures of the aortic annulus (CR) after transcatheter aortic valve implantation (TAVI). METHODS AND RESULTS: From May 2012 to June 2017 a total of 1030 patients underwent post- TAVI computed tomography angiography (CTA) at three centers in Germany and Denmark. CR were identified in 12 patients (1.2%, 80.7+5.0 years, STS-Score 4.1+1.4%). All 12 patients had received a balloon-expandable valve...
August 8, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28775200/prognostic-value-of-123-i-betamethyl-p-iodophenyl-pentadecanoic-acid-single-photon-emission-computed-tomography-in-patients-with-non-ischemic-heart-failure-with-preserved-ejection-fraction
#9
Hidenobu Hashimoto, Rine Nakanishi, Sunao Mizumura, Yukiko Hashimoto, Yuriko Okamura, Shunsuke Kiuchi, Junichi Yamazaki, Takanori Ikeda
Myocardial fatty acid metabolism imaging using (123)I-betamethyl-p-iodophenyl-pentadecanoic acid single-photon emission computed tomography (BMIPP-SPECT) is a useful modality for identifying high-risk patients with known ischemic heart disease. However, its utility for patients with non-ischemic heart failure with preserved ejection fraction (NIHFpEF) is not well-known. This study aims to evaluate the prognostic value of BMIPP defect score (BDS) in patients presenting with NIHFpEF. Methods: Of 804 consecutive patients who were admitted to the hospital because of acute HF and underwent BMIPP-SPECT, we identified 133 patients (73±13 years) who had normal coronary artery by invasive coronary angiography and preserved left ventricular ejection fraction (≥50%) by echocardiography...
August 3, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28770455/feasibility-of-a-single-beat-prospective-ecg-gated-cardiac-ct-for-comprehensive-evaluation-of-aortic-valve-disease-using-a-256-detector-row-wide-volume-ct-scanner-an-initial-experience
#10
Jin Young Kim, Young Joo Suh, Suyon Chang, Dong Jin Im, Yoo Jin Hong, Hye-Jeong Lee, Jin Hur, Young Jin Kim, Byoung Wook Choi
The aim of our study was to investigate the feasibility of single-beat prospective electrocardiogram (ECG)-gated cardiac computed tomography (CT) using a 256-detector row wide-volume CT scanner for functional and anatomical evaluation of the aortic valve (AV) and coronary arteries in patients with AV disease. A total of 50 patients who underwent cardiac CT scan with a wide-volume 256-detector row CT scanner for the evaluation of AV and aorta were retrospectively enrolled. Cardiac CT was performed using the prospective ECG-gated acquisition mode, and AV image quality was analyzed using a four-point grading system...
August 2, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28770279/-treatment-of-an-uncommon-case-of-a-cardiogenic-shock-simultaneous-use-of-a-va-ecmo-and-an-impella-cp%C3%A2
#11
H Haake, K Grün-Himmelmann, U Kania, F Trudzinski, P M Lepper, J Vom Dahl
We report the case of a 48-year old woman where probably the intramuscular administration of glucocorticoids by an orthopedist induced a pheochromocytoma crisis. The development of a cardiogenic shock with a cardiac arrest made the use of a venoarterial extra corporeal membrane oxygenation (VA-ECMO, Cardiohelp®, Maquet, Rastatt) necessary. To treat a pulmonary edema under VA-ECMO an Impella-CP® (Abiomed, Aachen) was implanted. A coronary angiography, endomyocardial biopsies and a computer tomography were performed...
August 2, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28758563/papillary-fibroelastoma-found-with-transesophageal-echocardiography-after-a-normal-transthoracic-echocardiography
#12
Andrew G Cook, Omar Viswanath, Jayanand D'Mello
We present the case of a patient with transient ischemic attacks who was being investigated for multiple embolic strokes. Initial workup, including brain computed tomography, computed tomography angiography, and transthoracic echocardiography (TTE) were negative for a source until transesophageal echocardiography (TEE) found a mass in the left atrium. The TEE differentiated the mass as a rare cardiac papillary fibroelastoma on the left atrial free wall confirmed by postsurgical pathology. This case highlights the importance of TEE as a diagnostic tool for its ability to more accurately differentiate and characterize the tumor compared with TTE...
September 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28747938/computed-tomography-angiography-for-imaging-results-of-neochordal-mitral-valve-repair
#13
Radosław Zwoliński, Anna Marcinkiewicz, Konrad Szymczyk, Jarosław Drożdż, Ryszard Jaszewski, Bogdan Jegier
INTRODUCTION: Degenerative mitral regurgitation is currently the most frequent indication for mitral valve repair. AIM: To visualize and assess the mid-term results of mitral valve repair with neochordae implantation, using computed tomography angiography (CTA) imaging. MATERIAL AND METHODS: The CTA with ECG gating and without modulation was applied in 10 patients to assess the results of a mitral valve sparing procedure. The results of 3 patients are presented...
June 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28742646/comparison-of-3-symptom-classification-methods-to-standardize-the-history-component-of-the-heart-score
#14
Michael R Marchick, Michael L Setteducato, Jesse J Revenis, Matthew A Robinson, Emily C Weeks, Thomas F Payton, David E Winchester, Brandon R Allen
OBJECTIVES: The History, Electrocardiography, Age, Risk factors, Troponin (HEART) score enables rapid risk stratification of emergency department patients presenting with chest pain. However, the subjectivity in scoring introduced by the history component has been criticized by some clinicians. We examined the association of 3 objective scoring models with the results of noninvasive cardiac testing. METHODS: Medical records for all patients evaluated in the chest pain center of an academic medical center during a 1-year period were reviewed retrospectively...
September 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28740778/takotsubo-cardiomyopathy-after-head-and-neck-reconstructive-surgery
#15
Masanori Mori, Hayato Nagashima, Satoshi Akazawa, Noriko Saegusa, Yuichi Ichikawa, Kei Iida, Kotaro Yoshimura, Masahiro Nakagawa
Takotsubo cardiomyopathy (TCM) is a form of transient heart failure that clinically mimics acute coronary syndrome and is characterized by left ventricular wall motion abnormalities. The pathophysiology of TCM is not well established. TCM is often preceded by emotional or physical stress and may occur after surgery. We present 3 cases of TCM occurring after head and neck reconstructive surgery. Echocardiography plays a central role in the diagnosis of TCM. Left ventricular wall motion abnormalities extend beyond the territory of a single coronary artery...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28738781/the-value-of-a-new-cardiac-magnetic-resonance-imaging-protocol-in-myocardial-infarction-with-non-obstructive-coronary-arteries-minoca-a-case-control-study-using-historical-controls-from-a-previous-study-with-similar-inclusion-criteria
#16
Per Tornvall, E B Brolin, K Caidahl, K Cederlund, O Collste, M Daniel, C Ekenbäck, J Jensen, S Y-Hassan, L Henareh, C Hofman-Bang, P Lyngå, E Maret, N Sarkar, J Spaak, M Sundqvist, P Sörensson, M Ugander, S Agewall
BACKGROUND: Myocardial Infarction with Non-Obstructive Coronary Arteries (MINOCA) is common with a prevalence of 6% of all patients fulfilling the diagnosis of myocardial infarction. MINOCA should be considered a working diagnosis. Cardiac Magnetic Resonance (CMR) imaging has recently been suggested to be of great value to determine the cause behind MINOCA. The objectives of this paper are to describe the rationale behind the second Stockholm Myocardial Infarction with Normal Coronaries (SMINC-2) study and to discuss the protocol for investigation of MINOCA patients in the light of the recently published position paper from the European Society of Cardiology...
July 24, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28738000/comparison-of-cardiac-output-measured-by-use-of-computed-tomography-and-thermodilution-in-dogs
#17
Sharon Tenenbaum, Fernando L Garcia-Pereira, Clifford R Berry, Tori Obert
OBJECTIVE To compare cardiac output (CO) measured by use of CT coronary angiography and thermodilution (criterion-referenced standard) at various CO values, record adverse effects, and determine the time needed to measure CO. ANIMALS 5 healthy purpose-bred Beagles (2 males and 3 females). PROCEDURES A prospective nonrandomized crossover study was conducted. Dogs were premedicated with butorphanol tartrate (0.2 mg•kg(-1), IM). Anesthesia was induced by IV administration of etomidate (1 to 2 mg•kg(-1)) and midazolam (0...
August 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28729409/comparison-of-anatomic-and-clinical-outcomes-in-patients-undergoing-alternative-initial-noninvasive-testing-strategies-for-the-diagnosis-of-stable-coronary-artery-disease
#18
Idan Roifman, Harindra C Wijeysundera, Peter C Austin, Mohammad R Rezai, Graham A Wright, Jack V Tu
BACKGROUND: The optimal initial noninvasive diagnostic testing strategy for stable coronary artery disease (CAD) is unknown. Although American guidelines recommend an exercise stress test as the first-line test, European guidelines suggest that stress imaging (myocardial perfusion imaging or stress echocardiography) or coronary computed tomography angiography may be preferable. Understanding the relationship between the initial strategy and downstream yield of obstructive CAD and major adverse cardiac events may provide insight as to the optimal strategy...
July 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28728443/functional-assessment-of-coronary-artery-disease-by-cardiac-computed-tomography
#19
T A Treibel, A Rossi, F Pugliese, L C Davies
Rapid technological advances in computed tomography (CT) have allowed CT coronary angiography (CTCA) to be delivered at low radiation dose and high diagnostic accuracy. Due to its high negative predictive value for coronary artery disease, it has become a gatekeeper for the assessment of patients with chest pain of recent onset. Second line functional assessment of a detected coronary stenosis relies mostly on other imaging modalities. Functional assessment of coronary artery disease by CT is therefore an attractive addition to CTCA...
July 25, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28725938/declining-radiation-dose-of-coronary-computed-tomography-angiography-german-cardiac-ct-registry-experience-2009-2014
#20
Axel Schmermund, Mohamed Marwan, Jörg Hausleiter, Sebastian Barth, Oliver Bruder, Sebastian Kerber, Grigorius Korosoglou, Alexander Leber, Werner Moshage, Stephen Schröder, Steffen Schneider, Jochen Senges, Stephan Achenbach
BACKGROUND: Coronary computed tomography angiography (CTA) is increasingly used as a test to rule out coronary artery disease (CAD) in patients with a low to intermediate pre-test probability of the disease. We used the database of the German CT registry, collected between 2009 and 2014 in a broad patient population, to analyze contemporary radiation dose associated with coronary CTA in clinical practice. PATIENTS AND METHODS: The prospective observational registry included a total of 7061 patients ≥18 years, referred to 12 participating centers for a clinically indicated cardiac CT examination...
July 19, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
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