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Cardiac CTA

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https://www.readbyqxmd.com/read/29351615/18f-fluorodeoxyglucose-positron-emission-computed-tomography-and-computed-tomography-angiography-in-prosthetic-heart-valve-endocarditis-from-guidelines-to-clinical-practice
#1
Laurens E Swart, Asbjørn M Scholtens, Wilco Tanis, Koen Nieman, Ad J J C Bogers, Fred J Verzijlbergen, Gabriel P Krestin, Jolien W Roos-Hesselink, Ricardo P J Budde
The timely diagnosis of prosthetic heart valve endocarditis remains challenging yet of utmost importance. 18F-fluorodeoxyglucose (18 F-FDG) positron emission/computed tomography (PET/CT) and cardiac computed tomography angiography (CTA) were recently introduced as additional diagnostic tools in the most recent ESC guidelines on infective endocarditis. However, how to interpret PET/CT findings with regard to what is to be considered abnormal, what the potential confounders may be, as well as which patients benefit most from these additional imaging techniques and how to best perform them in these often-complex patients, remains unclear...
January 16, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29310688/effect-of-eicosapentaenoic-acid-docosahexaenoic-acid-on-coronary-high-intensity-plaques-detected-with-non-contrast-t1-weighted-imaging-the-aquamarine-epa-dha-study-study-protocol-for-a-randomized-controlled-trial
#2
Kazuhiro Nakao, Teruo Noguchi, Yasuhide Asaumi, Yoshiaki Morita, Tomoaki Kanaya, Masashi Fujino, Hayato Hosoda, Shuichi Yoneda, Shoji Kawakami, Toshiyuki Nagai, Kensaku Nishihira, Takahiro Nakashima, Reon Kumasaka, Tetsuo Arakawa, Fumiyuki Otsuka, Michio Nakanishi, Yu Kataoka, Yoshio Tahara, Yoichi Goto, Haruko Yamamoto, Toshimitsu Hamasaki, Satoshi Yasuda
BACKGROUND: Despite the success of HMG-CoA reductase inhibitor (statin) therapy in reducing atherosclerotic cardiovascular events, a residual risk for cardiovascular events in patients with coronary artery disease (CAD) remains. Long-chain n-3 polyunsaturated fatty acids (LC n-3 PUFAs), especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are promising anti-atherosclerosis agents that might reduce the residual CAD risk. Non-contrast T1-weighted imaging (T1WI) with cardiac magnetic resonance (CMR) less invasively identifies high-risk coronary plaques as high-intensity signals...
January 8, 2018: Trials
https://www.readbyqxmd.com/read/29305732/anatomy-of-the-retro-oesophageal-major-aortopulmonary-collateral-arteries-in-patients-with-pulmonary-atresia-with-ventricular-septal-defect-results-from-preoperative-cta
#3
Qianjun Jia, Jianzheng Cen, Jinglei Li, Jian Zhuang, Hui Liu, Qun Zhang, Xiaoqing Liu, Meiping Huang, Changhong Liang
OBJECTIVES: To assess the frequency and anatomy of retro-oesophageal aortopulmonary collateral arteries (REMs) in patients with pulmonary atresia with ventricular septal defect and major aortopulmonary collateral arteries (PA-VSD-MAPCAs). METHODS: A total of 130 consecutive PA-VSD-MAPCA patients with preoperative CT angiography (CTA) data who underwent cardiac surgery were included. A detailed analysis of MAPCA anatomy was performed using CTA. RESULTS: A REM was identified in 82/130 included patients (63 %)...
January 5, 2018: European Radiology
https://www.readbyqxmd.com/read/29248654/value-of-myocardial-perfusion-assessment-with-coronary-computed-tomography-angiography-in-patients-with-recent-acute-onset-chest-pain
#4
Mathias H Sørgaard, Jesper J Linde, J Tobias Kühl, Henning Kelbæk, Jens D Hove, Gitte G Fornitz, Tem B S Jørgensen, Merete Heitmann, Charlotte Kragelund, Thomas F Hansen, Jawdat Abdulla, Thomas Engstrøm, Jan S Jensen, Yaffah T Wiegandt, Dan E Høfsten, Lars V Køber, Klaus F Kofoed
OBJECTIVES: The authors sought to perform a randomized controlled trial to evaluate the clinical efficacy of combined examination with coronary computed tomography angiography (CTA) and computed tomography perfusion imaging (CTP) compared to coronary CTA alone. BACKGROUND: Stress myocardial CTP may increase diagnostic specificity when added to coronary CTA in patients suspected of having ischemic heart disease. METHODS: Patients recently hospitalized for acute-onset chest pain, in whom acute coronary syndrome had been ruled out by normal electrocardiograms, normal troponin levels, and relief of symptoms, and who had a clinical indication for outpatient noninvasive testing, were screened for inclusion in the CATCH-2 (CArdiac cT in the treatment of acute CHest pain 2) trial (NCT02014311)...
December 8, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29239051/coronary-and-carotid-atherosclerosis-in-asymptomatic-male-marathon-runners
#5
Christof Burgstahler, Hans Cipowicz, Christoph Thomas, Christoph Schabel, Stefanie Mangold, Dominik Ketelsen, Claus D Claussen, Andreas M Niess, Ilias Tsiflikas
The aim of the study was to evaluate the diagnostic accuracy of carotid ultrasound (CU) to predict coronary atherosclerosis in asymptomatic male marathon runners. A total of 49 male marathon runners older than 45 years(mean age 53.3±7.2 years, range 45-74 years) received CU and cardiac CT angiography(CTA) including calcium scoring(CS). Results of CU and CTA were classified binary: 1. Absence of atherosclerosis and 2. presence of atherosclerosis. The extend of atherosclerosis was not primary end-point of the study...
December 14, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29233632/rationale-and-design-of-the-worldwide-prospective-multicenter-registry-on-radiation-dose-estimates-of-cardiac-ct-angiography-in-daily-practice-in-2017-protection-vi
#6
Thomas J Stocker, Simon Deseive, Marcus Chen, Jonathon Leipsic, Martin Hadamitzky, Ronen Rubinshtein, Erik L Grove, Xiang-Ming Fang, John Lesser, Pál Maurovich-Horvat, Hugo Marques, Daniele Andreini, Ramzi Tabbalat, Joon-Won Kang, Joachim Eckert, Patricia Dickson, Signe H Forsdahl, Jess Lambrechtsen, Roberto C Cury, Jörg Hausleiter
BACKGROUND: Cardiac computed tomography angiography (cardiac CTA) is an increasingly used versatile imaging method to evaluate coronary and cardiac morphology. Owing to improvements in technology, image quality has continuously improved over the last 10-20 years. At the same time, numerous non-randomized and randomized studies have been performed to reduce the associated radiation exposure. Currently, it is unclear if the advances in technology and knowledge about radiation reduction translated into reduced levels of cardiac CTA radiation dose in daily clinical practice as well as a wide utilization of dose-saving strategies...
December 5, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29216952/-sepsis-induced-cardiomyopathy-complicated-with-cardiogenic-shock-patients-supported-with-extracorporeal-membrane-oxygenation
#7
Changzhi Liu, Ruiqiu Zhu, Zhujiang Zhou, Haifeng Liu, Jingcheng Lin, Shuchao Wen, Liuer Zuo
Sepsis-induced cardiomyopathy is a reversible myocardial dysfunction due to sepsis, which may be severe enough to complicate cardiogenic shock, and without effective drug and with high mortality during the acute phase. A case of sepsis-induced cardiomyopathy complicated with cardiogenic shock was treated in the intensive care unit (ICU) of Shunde Hospital Southern Medical University. A 37 years old female patient was admitted because she had suffered repeated fever for 5 days, chest tightness and abdominal pain for 3 days...
December 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29195843/influence-of-irregular-heart-rhythm-on-radiation-exposure-image-quality-and-diagnostic-impact-of-cardiac-computed-tomography-angiography-in-4-339-patients-data-from-the-german-cardiac-computed-tomography-registry
#8
Grigorios Korosoglou, Mohamed Marwan, Sorin Giusca, Axel Schmermund, Steffen Schneider, Oliver Bruder, Jörg Hausleiter, Stephen Schroeder, Alexander Leber, Tobias Limbourg, Gitsios Gitsioudis, Johannes Rixe, Ralf Zahn, Hugo A Katus, Stephan Achenbach, Jochen Senges
BACKGROUND: Coronary computed tomography angiography (coronary CTA) provides non-invasive evaluation of the coronary arteries with high precision for the detection of significant coronary artery disease (CAD). AIM: To investigate whether irregular heart rhythm including atrial fibrillation and premature beats during data acquisition influences (i) radiation and contrast media exposure, (ii) number of non-evaluable coronary segments and (iii) diagnostic impact of coronary CTA...
November 21, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29184269/different-presentation-of-anomalous-origin-of-the-left-coronary-artery-from-the-pulmonary-artery-in-adults-case-reports
#9
Alwaleed Al-Dairy, Yousef Rezaei, Maziar Gholampour Dehaki, Anita Sadeghpour, Zia Totonchi, Hamidreza Pouraliakbar, Alireza Alizadeh Ghavidel
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital cardiac malformation. We report three cases of ALCAPA who survived to adulthood. The first case was a 51-year-old woman who complained of typical chest pain that was diagnosed with ALCAPA using cardiac catheterization and coronary computed tomographic angiography (CTA). The second case was a 30-year-old woman with a history of surgery for atrial septal defect at 10 years old who presented with progressive exertional dyspnea...
November 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29174197/comparison-of-cardiac-measurements-by-multi-detector-computed-tomography-angiography-and-transthoracic-echocardiography-in-english-bulldogs
#10
E T Hostnik, B A Scansen, A M Habing, G A Chiappone, R R Layman, R D White
INTRODUCTION: Transthoracic echocardiography (TTE) is the primary tool for the assessment of cardiac structure and function in dogs but is challenging in English bulldogs due to dorsoventral compression of the thorax, obesity, and narrow intercostal spaces. Multi-detector computed tomography angiography (CTA) may overcome the conformational obstacles of cardiac imaging in this breed. ANIMALS: Eleven client-owned English bulldogs. MATERIALS AND METHODS: Prospective clinical trial with paired analysis of TTE and CTA studies...
November 22, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29119262/role-of-cardiac-pet-in-clinical-practice
#11
REVIEW
Brian M Salata, Parmanand Singh
Early identification of atherosclerosis and at-risk lesions plays a critical role in reducing the burden of cardiovascular disease. While invasive coronary angiography serves as the gold standard for diagnosing coronary artery disease, non-invasive imaging techniques provide visualization of both anatomical and functional atherosclerotic processes prior to clinical presentation. The development of cardiac positron emission tomography (PET) has greatly enhanced our capability to diagnose and treat patients with early stages of atherosclerosis...
November 9, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29097345/tailoring-protocols-for-chest-ct-applications-when-and-how
#12
Roberto Iezzi, Anna Rita Larici, Paola Franchi, Riccardo Marano, Nicola Magarelli, Alessandro Posa, Biagio Merlino, Riccardo Manfredi, Cesare Colosimo
In the medical era of early detection of diseases and tailored therapies, an accurate characterization and staging of the disease is pivotal for treatment planning. The widespread use of computed tomography (CT)-often with the use of contrast material (CM)-probably represents the most important advance in diagnostic radiology. The result is a marked increase in radiation exposure of the population for medical purposes, with its intrinsic carcinogenic potential, and CM affecting kidney function. The radiologists should aim to minimize patient's risk by reducing radiation exposure and CM amount, while maintaining the highest image quality...
November 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29091000/image-quality-of-prospectively-ecg-triggered-coronary-ct-angiography-in-heart-transplant-recipients
#13
Andrea Bartykowszki, Márton Kolossváry, Ádám Levente Jermendy, Júlia Karády, Bálint Szilveszter, Mihály Károlyi, Orsolya Balogh, Balázs Sax, Béla Merkely, Pál Maurovich-Horvat
OBJECTIVE: Cardiac allograft vasculopathy (CAV) is among the top causes of death 1 year after heart transplantation (HTx). Coronary CT angiography (CTA) is a potential alternative to invasive imaging in the diagnosis of CAV. However, the higher heart rate (HR) of HTx recipients prompts the use of retrospective ECG-gating, which is associated with higher radiation dose, a major concern in this patient population. Therefore, we sought to evaluate the feasibility and image quality of low-radiation-dose prospectively ECG-triggered coronary CTA in HTx recipients...
November 1, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29069044/diagnostic-value-of-the-corrected-qt-difference-between-leads-v1-and-v6-in-patients-with-acute-pulmonary-thromboembolism
#14
Seong Jun Park, Chang Hee Kwon, Byeong Joo Bae, Bum Sung Kim, Sung Hea Kim, Hyun-Joong Kim, Hweung Kon Hwang, Sang-Man Chung
In acute pulmonary thromboembolism (PTE), right ventricular pressure overload impairs right-sided cardiac conduction and repolarization. We hypothesized that if heterogeneity of repolarization between right and left ventricles occurs in acute PTE, there would be the difference of repolarization between them. Therefore, we aimed to evaluate the diagnostic value of corrected QT interval (QTc) difference between leads V1 and V6 (V1 - V6) in patients with acute PTE.A total of 89 patients with suspected acute PTE who underwent computed tomographic angiography (CTA) were enrolled from January to December 2015...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28988831/calcification-remodeling-index-assessed-by-cardiac-ct-predicts-severe-coronary-stenosis-in-lesions-with-moderate-to-severe-calcification
#15
Mengmeng Yu, Yuehua Li, Wenbin Li, Zhigang Lu, Meng Wei, Jiayin Zhang
OBJECTIVES: To assess the diagnostic performance of the calcification remodeling index (RI) as assessed by coronary computed tomography angiography (coronary CTA) to predict the presence of severe coronary stenosis in atherosclerotic coronary lesions with moderate to severe calcification. METHODS: Patients who underwent coronary CTA and invasive coronary angiography (ICA) within one month and had moderately to severely calcified lesions as revealed by coronary CTA, were retrospectively included...
September 30, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28986773/feasibility-of-combined-risk-stratification-with-coronary-ct-angiography-and-stress-myocardial-spect-in-patients-with-chronic-coronary-artery-disease
#16
Tomonari Kiriyama, Yoshimitsu Fukushima, Hiromitsu Hayashi, Hitoshi Takano, Shin-Ichiro Kumita
OBJECTIVE: To examine the additional prognostic value of coronary CT angiography (CTA) over myocardial perfusion imaging (MPI) in patients with suspected or known coronary artery disease. METHODS: A series of 157 patients (mean age 69 ± 9 years; 76% male; median follow-up 49 months; range 12-82 months) underwent stress MPI with SPECT and coronary CTA within a 6-month interval. Summed stress score (SSS) and summed difference score (SDS) of stress MPI, number of vessels with stenosis, and presence of left main trunk stenosis and high-risk plaques on coronary CTA were examined...
October 6, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28950315/quantitative-global-plaque-characteristics-from-coronary-computed-tomography-angiography-for-the-prediction-of-future-cardiac-mortality-during-long-term-follow-up
#17
Michaela M Hell, Manish Motwani, Yuka Otaki, Sebastien Cadet, Heidi Gransar, Romalisa Miranda-Peats, Jacob Valk, Piotr J Slomka, Victor Y Cheng, Alan Rozanski, Balaji K Tamarappoo, Sean Hayes, Stephan Achenbach, Daniel S Berman, Damini Dey
Aims: Adverse plaque characteristics determined by coronary computed tomography angiography (CTA) have been associated with future cardiac events. Our aim was to investigate whether quantitative global per-patient plaque characteristics from coronary CTA can predict subsequent cardiac death during long-term follow-up. Methods and results: Out of 2748 patients without prior history of coronary artery disease undergoing CTA with dual-source CT, 32 patients suffered cardiac death (mean follow-up of 5 ± 2 years)...
December 1, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28941999/structured-reporting-platform-improves-cad-rads-assessment
#18
Bálint Szilveszter, Márton Kolossváry, Júlia Karády, Ádám L Jermendy, Mihály Károlyi, Alexisz Panajotu, Zsolt Bagyura, Milán Vecsey-Nagy, Ricardo C Cury, Jonathon A Leipsic, Béla Merkely, Pál Maurovich-Horvat
BACKGROUND: Structured reporting in cardiac imaging is strongly encouraged to improve quality through consistency. The Coronary Artery Disease - Reporting and Data System (CAD-RADS) was recently introduced to facilitate interdisciplinary communication of coronary CT angiography (CTA) results. We aimed to assess the agreement between manual and automated CAD-RADS classification using a structured reporting platform. METHODS: Five readers prospectively interpreted 500 coronary CT angiographies using a structured reporting platform that automatically calculates the CAD-RADS score based on stenosis and plaque parameters manually entered by the reader...
September 18, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28935463/image-guidance-for-transcatheter-aortic-valve-implantation-tavi-and-cerebral-embolic-protection
#19
I Vernikouskaya, W Rottbauer, B Gonska, C Rodewald, J Seeger, V Rasche, J Wöhrle
The study was aimed at evaluation of the feasibility and potential benefit of image fusion (IF) of pre-procedural CT angiography (CTA) and x-ray (XR) fluoroscopy for image-guided navigation in transfemoral transcatheter aortic valve implantation (TAVI) with the strong focus on guiding the double-filter cerebral embolic protection device and valve prosthesis placement. METHODS: In 31 patients undergoing TAVI, image registration of CTA-derived 3D anatomical models of the relevant cardiac anatomy and vasculature, and live XR was performed applying a commercially available navigation tool...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28917674/prognostic-value-of-risk-factors-calcium%C3%A2-score-coronary-cta-myocardial%C3%A2-perfusion-imaging-and-invasive%C3%A2-coronary-angiography-in-kidney%C3%A2-transplantation-candidates
#20
Simon Winther, My Svensson, Hanne Skou Jørgensen, Laust Dupont Rasmussen, Niels Ramsing Holm, Lars Christian Gormsen, Kirsten Bouchelouche, Hans Erik Bøtker, Per Ivarsen, Morten Bøttcher
OBJECTIVES: This study sought to perform a prospective head-to-head comparison of the predictive value of clinical risk factors and a variety of cardiac imaging modalities including coronary artery calcium score (CACS), coronary computed tomography angiography (CTA), single-photon emission computed tomography (SPECT), and invasive coronary angiography (ICA) on major adverse cardiac events (MACE) and all-cause mortality in kidney transplantation candidates. BACKGROUND: Current guidelines recommend screening for coronary artery disease in kidney transplantation candidates...
September 9, 2017: JACC. Cardiovascular Imaging
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