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Coronary cardiac computed tomography

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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
#1
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/28817662/single-scan-rest-stress-imaging-with-99mtc-sestamibi-and-cadmium-zinc-telluride-based-spect-for-hyperemic-flow-quantification-a-feasibility-study-evaluated-with-cardiac-magnetic-resonance-imaging
#2
Yu-Hua Dean Fang, Yuan-Chang Liu, Kung-Chu Ho, Feng-Cheng Kuo, Ching-Fang Yang, Tzu-Chen Yen, I-Chang Hsieh
INTRODUCTION: We aimed to evaluate whether the hyperemic myocardial blood flow (MBF) can be estimated using cadmium zinc telluride (CZT)-based single-photon emission computed tomography (SPECT) cameras with a single, rapid rest/stress dynamic scan. Dynamic contrast-enhanced (DCE) cardiac magnetic resonance imaging (MRI) was used as a reference modality for flow measurement. MATERIALS AND METHODS: The proposed protocol included both the rest and stress acquisitions within a 24-min scan...
2017: PloS One
https://www.readbyqxmd.com/read/28815291/prognostic-value-of-atherosclerotic-burden-and-coronary-vascular-function-in-patients-with-suspected-coronary-artery-disease
#3
Roberta Assante, Wanda Acampa, Emilia Zampella, Parthiban Arumugam, Carmela Nappi, Valeria Gaudieri, Ciro Gabriele Mainolfi, Mariarosaria Panico, Mario Magliulo, Christine M Tonge, Mario Petretta, Alberto Cuocolo
PURPOSE: To evaluate the prognostic value of coronary atherosclerotic burden, assessed by coronary artery calcium (CAC) score, and coronary vascular function, assessed by coronary flow reserve (CFR) in patients with suspected coronary artery disease (CAD). METHODS: We studied 436 patients undergoing hybrid (82)Rb positron emission tomography/computed tomography imaging. CAC score was measured according to the Agatston method, and patients were categorized into three groups (0, <400, and ≥400)...
August 16, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28814447/acute-myocarditis-secondary-to-cardiac-tuberculosis
#4
Alice Cowley, Laura Dobson, John Kurian, Christopher Saunderson
Isolated myocardial involvement in tuberculosis is exceedingly rare but there are reports it can present with sudden cardiac death, atrioventricular block, ventricular arrhythmias or congestive cardiac failure. We report the case of a 33 year-old male, of South Asian descent, who presented with chest pain, shortness of breath and an abnormal ECG. The patient had no significant past medical history and coronary angiogram showed no evidence of coronary artery disease. Of note the patient had recently been discharged from a local district hospital with an episode of myocarditis...
August 16, 2017: Echo Research and Practice
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
#5
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/28808939/comparison-of-left-ventricular-shape-by-gated-spect-imaging-in-diabetic-and-nondiabetic-patients-with-normal-myocardial-perfusion-a-propensity-score-analysis
#6
Carmela Nappi, Valeria Gaudieri, Wanda Acampa, Roberta Assante, Emilia Zampella, Ciro Gabriele Mainolfi, Mario Petretta, Guido Germano, Alberto Cuocolo
BACKGROUND: Diabetes mellitus induces structural and functional cardiac alterations that can result in heart failure. Left ventricular (LV) shape is a dynamic component of cardiac geometry influencing its contractile function. However, few data are available comparing LV shape index in diabetic and nondiabetic patients without overt coronary artery disease after balancing for coronary risk factors. METHODS: We studied 1168 patients with normal myocardial perfusion and normal LV ejection fraction on stress gated single-photon emission computed tomography (SPECT) imaging...
August 14, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28805032/improving-outcomes-after-cabg-and-pci
#7
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
#8
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
#9
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/28797406/ct-detected-growth-of-coronary-artery%C3%A2-calcification-in-asymptomatic-middle-aged-subjects-and-association-with-15-biomarkers
#10
Søren Zöga Diederichsen, Mette Hjortdal Grønhøj, Hans Mickley, Oke Gerke, Flemming Hald Steffensen, Jess Lambrechtsen, Niels Peter Rønnow Sand, Lars Melholt Rasmussen, Michael Hecht Olsen, Axel Diederichsen
OBJECTIVES: This study sought to determine the incidence and progression of coronary artery calcification (CAC) in asymptomatic middle-aged subjects and to evaluate the value of a broad panel of biomarkers in the prediction of CAC growth. BACKGROUND: CAC continues to be a major risk factor, but the value of biochemical markers in predicting CAC incidence and progression remains unresolved. METHODS: At baseline, 1,227 men and women underwent traditional risk assessment and a computed tomography (CT) scan to determine the CAC score...
August 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28797402/the-identification-of-calcified-coronary-plaque-is-associated-with-initiation-and-continuation-of-pharmacological-and-lifestyle-preventive-therapies-a-systematic-review-and-meta-analysis
#11
Ankur Gupta, Emily Lau, Ravi Varshney, Edward A Hulten, Michael Cheezum, Marcio S Bittencourt, Michael J Blaha, Nathan D Wong, Roger S Blumenthal, Matthew J Budoff, Craig A Umscheid, Khurram Nasir, Ron Blankstein
OBJECTIVES: The aim of this study was to assess the odds of initiation or continuation of pharmacological and lifestyle preventive therapies in patients with nonzero versus zero coronary artery calcium (CAC) score detected on cardiac computed tomography. BACKGROUND: Detection of calcified coronary plaque could serve as a motivational tool for physicians and patients to intensify preventive therapies. METHODS: We searched PubMed, EMBASE (Excerpta Medica database), Web of Science, Cochrane CENTRAL (Cochrane central register of controlled trials), ClinicalTrials...
August 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28792136/impact-of-follow-up-ischemia-on-myocardial-perfusion-single-photon-emission-computed-tomography-in-patients-with-coronary-artery-disease
#12
Se Hun Kang, Hyo In Choi, Young Hak Kim, Eun Young Lee, Jung Min Ahn, Seungbong Han, Pil Hyung Lee, Jae Hyung Roh, Sung Han Yun, Duk Woo Park, Soo Jin Kang, Seung Whan Lee, Cheol Whan Lee, Dae Hyuk Moon, Seong Wook Park, Seung Jung Park
PURPOSE: Few studies have reported on predicting prognosis using myocardial perfusion single-photon emission computed tomography (SPECT) during coronary artery disease (CAD) treatment. Therefore, we aimed to assess the clinical implications of myocardial perfusion SPECT during follow-up for CAD treatment. MATERIALS AND METHODS: We enrolled 1153 patients who had abnormal results at index SPECT and underwent follow-up SPECT at intervals ≥6 months. Major adverse cardiac events (MACE) were compared in overall and 346 patient pairs after propensity-score (PS) matching...
September 2017: Yonsei Medical Journal
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
#13
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
#14
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
#15
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/28753607/total-and-differential-wbc-counts-are-related-with-coronary-artery-atherosclerosis-and-increase-the-risk-for-cardiovascular-disease-in-koreans
#16
Jung Hee Kim, Soo Lim, Kyong Soo Park, Hak Chul Jang, Sung Hee Choi
OBJECTIVE: Inflammation is a key mechanism of atherosclerosis. White blood cells (WBCs) play a pivotal role in the inflammatory process. We investigated the relationships between total and differential WBC counts and multi-detector cardiac computed tomography (MDCT) findings, as well as the risk of cardiovascular disease in asymptomatic patients in Korea. MATERIALS AND METHODS: We recruited asymptomatic men (n = 7274) and women (n = 5478) aged ≥30 years who were free of known coronary heart disease...
2017: PloS One
https://www.readbyqxmd.com/read/28746709/association-of-coronary-artery-calcium-score-vs-age-with-cardiovascular-risk-in-older-adults-an-analysis-of-pooled-population-based-studies
#17
Yuichiro Yano, Christopher J O'Donnell, Lewis Kuller, Maryam Kavousi, Raimund Erbel, Hongyan Ning, Ralph D'Agostino, Anne B Newman, Khurram Nasir, Albert Hofman, Nils Lehmann, Klodian Dhana, Ron Blankstein, Udo Hoffmann, Stefan Möhlenkamp, Joseph M Massaro, Amir-Abbas Mahabadi, Joao A C Lima, M Arfan Ikram, Karl-Heinz Jöckel, Oscar H Franco, Kiang Liu, Donald Lloyd-Jones, Philip Greenland
Importance: Besides age, other discriminators of atherosclerotic cardiovascular disease (ASCVD) risk are needed in older adults. Objectives: To examine the predictive ability of coronary artery calcium (CAC) score vs age for incident ASCVD and how risk prediction changes by adding CAC score and removing only age from prediction models. Design, Setting, and Participants: We conducted an analysis of pooled US population-based studies, including the Framingham Heart Study, the Multi-Ethnic Study of Atherosclerosis, and the Cardiovascular Health Study...
July 26, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28742646/comparison-of-3-symptom-classification-methods-to-standardize-the-history-component-of-the-heart-score
#18
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
#19
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
#20
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
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