keyword
MENU ▼
Read by QxMD icon Read
search

Computed coronary angiography

keyword
https://www.readbyqxmd.com/read/27928449/severe-asymptomatic-coronary-obstruction-in-chronic-hemodialysed-patient-a-case-report
#1
Voiculeț C, Zara O, Văcăroiu I, Bogeanu C, Tiron T, Turcu F, Aron G, Ciocâlteu A
Introduction. Arterial stiffness and vascular calcifications are independent predictors of cardiovascular morbidity and mortality in the chronic kidney disease (CKD) stage 5D population. According to the guidelines, patients on renal replacement therapy represent a very high cardiovascular risk class. Case report. We report the case of a 67-year-old hypertensive male patient, known with CKD stage 5D on hemodialysis (three times per week), secondary bone mineral disease, admitted for progressive right leg pain...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27928222/performance-of-dual-source-ct-with-high-pitch-spiral-mode-for-coronary-stent-patency-compared-with-invasive-coronary-angiography
#2
Xia Yang, Qiang Yu, Wei Dong, Zhen-Hong Fu, Jun-Jue Yang, Jun Guo, Yun-Dai Chen
OBJECTIVE: To investigate the performance of dual-source computed tomography (DSCT) using high-pitch spiral (HPS) mode for coronary stents patency. METHODS: We conducted a prospective study on 120 patients with 260 previous stents implanted due to recurred suspicious symptoms of angina scheduled for invasive coronary angiography (ICA), while DSCT were conducted using HPS mode. RESULTS: There was no significant impact of age, body mass index or heat rate (HR) on image quality (P > 0...
October 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/27926497/coronary-computed-tomographic-angiography-for-patients-with-low-to-intermediate-risk-chest-pain-a-systematic-review-and-meta-analysis
#3
REVIEW
Yu Chen, Yuqi Fan, Zhaofang Yin, Huili Zhang, Yang Zhang, Zhihua Han, Changqian Wang
Coronary computed tomographic angiography (CCTA) can image the coronary vasculature rapidly and detect the presence and severity of luminal stenosis accurately. However, whether CCTA based care strategy could gain more benefits than conventional strategy with functional tests for patients with low-to-intermediate risk chest pain remains unknown. In this study we performed a meta-analysis to compare the clinical efficacy of CCTA versus conventional strategy. Eight randomized controlled trials with 14749 patients were finally included in this review after database searching...
December 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27924174/feasibility-study-of-computational-fluid-dynamics-simulation-of-coronary-computed-tomography-angiography-based-on-dual-source-computed-tomography
#4
Jing Lu, Jie Yu, Heshui Shi
BACKGROUND: Adding functional features to morphological features offers a new method for non-invasive assessment of myocardial perfusion. This study aimed to explore technical routes of assessing the left coronary artery pressure gradient, wall shear stress distribution and blood flow velocity distribution, combining three-dimensional coronary model which was based on high resolution dual-source computed tomography (CT) with computational fluid dynamics (CFD) simulation. METHODS: Three cases of no obvious stenosis, mild stenosis and severe stenosis in left anterior descending (LAD) were enrolled...
January 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27922808/vascular-assessment-for-transcatheter-aortic-valve-replacement-intravascular-ultrasound-compared-with-computed-tomography
#5
Essa Essa, Nader Makki, Peter Bittenbender, Quinn Capers, Barry George, Gregory Rushing, Juan Crestanello, Konstantinos Dean Boudoulas, Scott M Lilly
BACKGROUND: Assessment of the femoral and iliac arteries is essential prior to transcatheter aortic valve replacement (TAVR). It is critical for establishing candidacy for a femoral approach, and can help predict vascular complications. Although computed tomography angiography (CTA) is the standard imaging modality, it has limitations. OBJECTIVE: This study compared CTA with intravascular ultrasound (IVUS) in patients undergoing TAVR evaluation. METHODS: Fifteen patients undergoing pre-TAVR coronary angiography and hemodynamic assessment were recruited...
December 2016: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/27914502/rationale-and-design-of-the-progression-of-atherosclerotic-plaque-determined-by-computed-tomographic-angiography-imaging-paradigm-registry-a-comprehensive-exploration-of-plaque-progression-and-its-impact-on-clinical-outcomes-from-a-multicenter-serial-coronary
#6
Sang-Eun Lee, Hyuk-Jae Chang, Asim Rizvi, Martin Hadamitzky, Yong-Jin Kim, Edoardo Conte, Daniele Andreini, Gianluca Pontone, Valentina Volpato, Matthew J Budoff, Ilan Gottlieb, Byoung Kwon Lee, Eun Ju Chun, Filippo Cademartiri, Erica Maffei, Hugo Marques, Jonathon A Leipsic, Sanghoon Shin, Jung Hyun Choi, Namsik Chung, James K Min
BACKGROUND: The natural history of coronary artery disease (CAD) in patients with low-to-intermediate risk is not well characterized. Although earlier invasive serial studies have documented the progression of atherosclerotic burden, most were focused on high-risk patients only. The PARADIGM registry is a large, prospective, multinational dynamic observational registry of patients undergoing serial coronary computed tomographic angiography (CCTA). The primary aim of PARADIGM is to characterize the natural history of CAD in relation to clinical and laboratory data...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27909513/assessment-of-sinoatrial-node-function-in-patients-with-persistent-and-long-standing-persistent-forms-of-atrial-fibrillation-after-maze-iii-procedure-combined-with-mitral-valve-operation
#7
Kulikov Aleksei A, Bokeria Leo A
RESEARCH OBJECTIVE: Assessment of sinoatrial node function after Maze III procedure combined with a mitral valve operation. METHODS: 100 patients were included in the research with persistent and long-standing persistent forms of atrial fibrillation (AF) and need of operative treatment concerning valve disease. The following preoperative preparation methods were executed to all patients: Electrocardiogram in 12 standard assignments;Two-dimensional echocardiographic with assessment of systolic and diastolic functions of the left ventricle, size of the left atrium and grade of valve disease;Transesophageal echocardiography for exclusion of blood clots in the left atrium and left atrial appendage;Coronary angiography for exclusion of coronary heart disease;Computer tomography for examination of cardiac chambers and anatomic characteristics of pulmonary veins...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909280/-cardiac-failure-developing-eleven-years-after-coronary-artery-bypass-grafting-report-of-a-case
#8
Shingo Taguchi, Takashi Hachiya, Katsuhisa Onoguchi, Makoto Hanai, Makoto Sumi, Masataka Yamazaki, Masahito Yamashiro
We report a rare case of cardiac failure for intrapericardial hematoma 11 years after coronary artery bypass grafting. A 59-year-old man was admitted to our hospital with cardiac tamponade. Echocardiography and computed tomography scan showed severe compression of the left ventricle(LV) by a large mass sized about 5×8 cm. Coronary angiography showed total occlusion at circumflex branch (Cx) #11. The mass was diagnosed with intrapericardial hematoma. We performed removal of hematoma in the pericardial cavity, and removed hematoma had 126 g...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27909273/-minimally-invasive-coronary-artery-bypass-grafting-using-bilateral-in-situ-internal-thoracic-arteries
#9
Akihiko Yamauchi, Masaki Tabuchi, Shinya Terada, Keita Kikuchi
A 73-year-old male with diabetes mellitius was referred to our hospital for coronary artery bypass grafting (CABG). Preoperative coronary angiography revealed three-vessel coronary disease. Minimally invasive coronary artery grafting (MICS CABG) via left thoracotomy was selected to decrease surgical site infection due to severe diabetes. In situ bilateral internal thoracic arteries (BITA) were harvested using a long type Harmonic scalpel. In situ right internal thorac artery( RITA)-left anterior descending artery (LAD), in situ left internal thorac artery( LITA)-high lateral branch (HL), and aorta-saphenous vein graft (SVG)-#4 posterior descending artery were performed...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908971/13n-ammonia-pet-ct-detection-of-myocardial-perfusion-abnormalities-in-beagle-dogs-after-local-heart-irradiation
#10
Jianbo Song, Rui Yan, Zhifang Wu, Jianguo Li, Min Yan, Xinzhong Hao, Jianzhong Liu, Sijin Li
: To determine the potential value of (13)N-ammonia positron emission tomography (PET)/computed tomography (CT) myocardial perfusion imaging (MPI) for detection of myocardial perfusion changes at early stage induced by radiation damage. METHODS: Thirty-six Beagle dogs were randomly divided into the control (n = 18) or the irradiation groups (n = 18). The irradiation group underwent local irradiation to the left ventricular anterior cardiac wall with a single dose of 20 Gy, whereas the control group received sham irradiation...
December 1, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27908505/diagnostic-advantage-of-stress-computed-tomography-myocardial-perfusion-over-single-photon-emission-computed-tomography-for-the-assessment-of-myocardial-ischemia
#11
Yasushi Ueki, Atsushi Izawa, Daisuke Kashiwagi, Shigeki Nishiyama, Shinichi Aso, Chihiro Suzuki, Shumpei Sakurai, Kazuhiro Oguchi, Yoshikazu Yazaki, Uichi Ikeda, Koichiro Kuwahara
BACKGROUND: This study compared adenosine stress computed tomography myocardial perfusion (CTP) with single-photon emission computed tomography (SPECT) in the diagnosis of functionally significant coronary artery stenosis using fractional flow reserve (FFR) as reference standard. METHODS: We included a total of 93 coronary arteries from 31 patients in whom at least one vessel with ≥50% stenosis was detected with computed tomography coronary angiography. All patients underwent both SPECT and adenosine stress CTP, followed by invasive coronary angiography (ICA) and FFR...
November 28, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27906915/the-value-of-ct-cardiac-angiography-and-ct-calcium-score-testing-in-a-modern-cardiology-service-in-new-zealand-a-report-of-a-single-centre-eight-year-experience-from-5-237-outpatient-procedures
#12
Chris Ellis, Greg Gamble, Colin Edwards, Niels van Pelt, Ruvin Gabriel, Boris Lowe, Jonathan Christiansen, Andrew To, Helen Winch, Mark Osborne, John Ormiston, Malcolm Legget
BACKGROUND: Computed tomographic (CT) cardiac angiography is of increasing value in several areas of patient management in cardiology. We assessed the ability of CT cardiac angiography to effectively 'rule out' severe coronary stenoses in patients presenting with 'atypical' symptoms and/or an equivocal stress test, which offers a new approach to the management of coronary artery disease. We also examined the use of the CT calcium score test in cardiovascular (CVS) risk assessment. METHODS: From a large single centre (Mercy Hospital) in Auckland, using a prospectively acquired, comprehensive database, we audited the entire eight-year experience of 5,169 patients (7/8/06 to 31/1/14) who underwent 5,237 64-slice computed tomographic (CT) cardiac angiogram or CT calcium score tests (GE Lightspeed scanner)...
December 2, 2016: New Zealand Medical Journal
https://www.readbyqxmd.com/read/27901333/fractional-flow-reserve-lessons-from-platform-and-future-perspectives
#13
Gianluca Pontone, Patrizia Carità, Massimo Verdecchia, Dario Buccheri, Daniele Andreini, Andrea I Guaricci, Mark Rabbat, Mauro Pepi
In the treatment of stable coronary artery disease (CAD) the identification of patients who may gain the highest benefit from further invasive treatments is of pivotal importance for the healthcare system. In this setting, it has been established that an ischemia-guided revascularization strategy yields improved clinical outcomes in a cost- effective fashion compared with anatomy-guided revascularization alone. Invasive fractional flow reserve (FFR) is considered the gold standard, especially in the intermediate-range atherosclerotic lesions, for assessing lesion specific ischemia at the time of invasive coronary angiography and has now become the standard of reference for studies assessing the diagnostic performance of the various non-invasive stress tests...
November 30, 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27900990/prognostic-value-of-gai-s-plaque-score-and-agatston-coronary-artery-calcium-score-for-functionally-significant-coronary-artery-stenosis
#14
Chuang Zhang, Shuang Yang, Lu-Yue Gai, Zhi-Qi Han, Qian Xin, Xiao-Bo Yang, Jun-Jie Yang, Qin-Hua Jin
BACKGROUND: The prognostic values of the coronary computed tomography angiography (CCTA) score for predicting future cardiovascular events have been previously demonstrated in numerous studies. However, few studies have used the rich information available from CCTA to detect functionally significant coronary lesions. We sought to compare the prognostic values of Gai's plaque score and the coronary artery calcium score (CACS) of CCTA for predicting functionally significant coronary lesions, using fractional flow reserve (FFR) as the gold standard...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27900323/unexpected-dual-left-anterior-descending-artery-as-a-source-of-percutaneous-coronary-revascularization-failure
#15
Steven D Hajdu, Salah D Qanadli
Dual left anterior descending artery (LAD) is rare. A 61-year-old patient was referred because of angina and a positive stress test. Coronary angiography revealed a short LAD originating from the left main coronary artery. Computed tomography showed a long LAD originating above the right coronary artery sinus.
2016: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27899941/influence-of-increased-epicardial-adipose-tissue-volume-on-1-year-in-stent-restenosis-in-patients-who-received-coronary-stent-implantation
#16
Ying Zhou, Hua-Wei Zhang, Feng Tian, Jin-Song Chen, Tian-Wen Han, Ya-Hang Tan, Jia Zhou, Tao Zhang, Jing Jing, Yun-Dai Chen
BACKGROUND: Epicardial adipose tissue (EAT) is significantly associated with the formation and composition of coronary atherosclerotic plaque, cardiac events and the clinical prognosis of coronary heart disease. But, whether increased EAT deposition may affect the incidence of in-stent restenosis (ISR) is currently unclear. This study used coronary computed tomography angiography (CCTA) as a mean to investigate whether increased EAT volume was associated with ISR. METHODS: A total of 364 patients who underwent 64-slice CCTA examination for the evaluation of suspected coronary artery disease, and subsequently underwent percutaneous coronary intervention (PCI) for the first time, and then accepted coronary angiography (CA) follow-up for ISR examination in one year, were retrospectively included in this study...
September 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/27899352/evaluation-of-computed-tomography-in-patients-with-atypical-angina-or-chest-pain-clinically-referred-for-invasive-coronary-angiography-randomised-controlled-trial
#17
(no author information available yet)
No abstract text is available yet for this article.
November 29, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27896904/contrast-induced-encephalopathy-following-cardiac-catheterization
#18
Roberto Spina, Neil Simon, Romesh Markus, David Wm Muller, Krishna Kathir
OBJECTIVES: To describe the epidemiology, pathophysiology, clinical presentation, and management of contrast-induced encephalopathy (CIE) following cardiac catheterization. BACKGROUND: CIE is an acute, reversible neurological disturbance directly attributable to the intra-arterial administration of iodinated contrast medium. METHODS: The PubMed database was searched and all cases in the literature were retrieved and reviewed. RESULTS: 52 reports of CIE following cardiac catheterization were found...
November 29, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27896495/accuracy-of-coronary-computed-tomography-angiography-for-bioresorbable-scaffold-luminal-investigation-a-comparison-with-optical-coherence-tomography
#19
Carlos Collet, Yohei Sotomi, Rafael Cavalcante, Taku Asano, Yosuke Miyazaki, Erhan Tenekecioglu, Pieter Kistlaar, Yaping Zeng, Pannipa Suwanasson, Robbert J de Winter, Koen Nieman, Patrick W Serruys, Yoshinobu Onuma
To establish the accuracy of coronary computed tomography angiography (CTA) for in-scaffold quantitative evaluation with optical coherence tomography (OCT) as a reference. The translucent backbone of the bioresorbable scaffold allow us to evaluate non-invasively the coronary lumen with coronary CTA. In the ABSORB first-in-man studies, coronary CTA was shown to be feasible for quantitative luminal assessment. Nevertheless, a comparison with an intravascular modality with higher resolution has never been performed...
November 28, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27895870/systolic-compression-of-a-myocardial-bridged-coronary-artery-and-its-morphologic-characteristics-a-combination-study-of-computed-tomography-angiography-and-invasive-angiography
#20
Abbas Arjmand Shabestari, Roxana Azma, Armin Nourmohammad, Madjid Shakiba
BACKGROUND: Myocardial bridging (MB) is a congenital anomaly in which a segment of a major epicardial coronary artery courses through the myocardium. This anomaly can lead to myocardial ischemia, arrhythmia, and even death. The effectiveness of coronary computed tomographic angiography (CCTA) in the detection of MB and its morphological features, and the accuracy of invasive coronary angiography (ICA) in the evaluation of systolic compression have been shown in some prior studies. OBJECTIVES: The present study aimed to evaluate the correlation between the depth and the length of MB as determined using CCTA, and the degree of luminal narrowing of the involved tunneled segment as calculated using the ICA...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
keyword
keyword
83055
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"