keyword
MENU ▼
Read by QxMD icon Read
search

Coronary cardiac computed tomography

keyword
https://www.readbyqxmd.com/read/29769130/diagnostic-accuracy-of-low-dose-dual-source-cardiac-computed-tomography-as-compared-to-surgery-in-univentricular-heart-patients
#1
Narumol Chaosuwannakit, Pattarapong Makarawate
BACKGROUND: To evaluate the ability of low radiation dose dual-source computed tomography (DSCT) to depict the features of morphological univentricular heart and to define accuracy by comparing findings with surgery. METHODS: Low radiation dose dual-source cardiac computed tomography (CCT) of 33 cases of functional univentricular heart preliminary diagnosis by echocardiography compared with the results of surgery were retrospectively analyzed (aged 1 day to 4 years, median 5 months)...
May 16, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29768380/tradeoff-between-noise-reduction-and-inartificial-visualization-in-a-model-based-iterative-reconstruction-algorithm-on-coronary-computed-tomography-angiography
#2
Kenichiro Hirata, Daisuke Utsunomiya, Masafumi Kidoh, Yoshinori Funama, Seitaro Oda, Hideaki Yuki, Yasunori Nagayama, Yuji Iyama, Takeshi Nakaura, Daisuke Sakabe, Kenichi Tsujita, Yasuyuki Yamashita
We aimed to evaluate the image quality performance of coronary CT angiography (CTA) under the different settings of forward-projected model-based iterative reconstruction solutions (FIRST).Thirty patients undergoing coronary CTA were included. Each image was reconstructed using filtered back projection (FBP), adaptive iterative dose reduction 3D (AIDR-3D), and 2 model-based iterative reconstructions including FIRST-body and FIRST-cardiac sharp (CS). CT number and noise were measured in the coronary vessels and plaque...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29756381/myocardial-multilayer-strain-does-not-provide-additional-value-for-detection-of-myocardial-viability-assessed-by-spect-imaging-over-and-beyond-standard-strain
#3
Elisabeth Orloff, Pauline Fournier, Frédéric Bouisset, Thomas Moine, Maxime Cournot, Meyer Elbaz, Didier Carrié, Michel Galinier, Olivier Lairez, Thomas Cognet
BACKGROUND: The aim of this study was to evaluate the value of multilayer strain analysis to the assessment of myocardial viability (MV) through the comparison of both speckle tracking echocardiography and single-photon emission computed tomography (SPECT) imaging. We also intended to determine which segmental longitudinal strain (LS) cutoff value would be optimal to discriminate viable myocardium. METHODS: We included 47 patients (average age: 61 ± 11 years) referred to our cardiac imaging center for MV evaluation...
May 14, 2018: Echocardiography
https://www.readbyqxmd.com/read/29754806/machine-learning-in-cardiac-ct-basic-concepts-and-contemporary-data
#4
REVIEW
Gurpreet Singh, Subhi J Al'Aref, Marly Van Assen, Timothy Suyong Kim, Alexander van Rosendael, Kranthi K Kolli, Aeshita Dwivedi, Gabriel Maliakal, Mohit Pandey, Jing Wang, Virginie Do, Manasa Gummalla, Carlo N De Cecco, James K Min
Propelled by the synergy of the groundbreaking advancements in the ability to analyze high-dimensional datasets and the increasing availability of imaging and clinical data, machine learning (ML) is poised to transform the practice of cardiovascular medicine. Owing to the growing body of literature validating both the diagnostic performance as well as the prognostic implications of anatomic and physiologic findings, coronary computed tomography angiography (CCTA) is now a well-established non-invasive modality for the assessment of cardiovascular disease...
April 30, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29753654/correlation-of-arterial-stiffness-with-left-atrial-volume-index-and-left-ventricular-mass-index-in-young-adults-evaluation-by-coronary-computed-tomography-angiography
#5
Kazuhiro Osawa, Rine Nakanishi, Toru Miyoshi, Sina Rahmani, Indre Ceponiene, Negin Nezarat, Mitsuru Kanisawa, Hong Qi, Eranthi Jayawardena, Nicholas Kim, Hiroshi Ito, Matthew J Budoff
BACKGROUND: Increased arterial stiffness is reportedly associated with cardiac remodelling, including the left atrium and left ventricle, in middle-aged and older adults. However, little is known about this association in young adults. METHODS: In total, 73 patients (44 (60%) men) aged 25 to 45 years with suspected coronary artery disease were included in the analysis. The left atrial volume index (LAVI), left ventricular volume index (LVVI), and left ventricular mass index (LVMI) were measured using coronary computed tomography angiography (CCTA)...
April 26, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29751831/intravenous-injection-of-allogeneic-umbilical-cord-derived-multipotent-mesenchymal-stromal-cells-reduces-the-infarct-area-and-ameliorates-cardiac-function-in-a-porcine-model-of-acute-myocardial-infarction
#6
Meikuang Lim, Weiqiang Wang, Lu Liang, Zhi-Bo Han, Zongjin Li, Jie Geng, Meng Zhao, Honghong Jia, Jie Feng, Zhe Wei, Baoquan Song, Jiemin Zhang, Jun Li, Tianwen Liu, Fan Wang, Ting Li, Jianming Li, Yihu Fang, Jianhua Gao, Zhongchao Han
BACKGROUND: Multipotent mesenchymal stromal cell (MSC) therapy has been widely recognized as a feasible strategy for regenerating injured myocardial tissue. However, little is known about the efficacy of intravenous injection of allogeneic umbilical cord (UC) MSCs in preclinical models of porcine myocardial infarction. METHODS: Different dosages of allogeneic UC-MSCs or the vehicle [phosphate-buffered saline (PBS)] were delivered intravenously into an acute myocardial infarction (AMI) porcine model twice after coronary ligation...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29742921/long-term-prognostic-value-of-coronary-computed-tomography-angiography-in-chest-pain-patients
#7
Mårten Sandstedt, Jakob De Geer, Lilian Henriksson, Jan Engvall, Magnus Janzon, Anders Persson, Joakim Alfredsson
Background Coronary computed tomography angiography (CCTA) is increasingly used to detect coronary artery disease (CAD), but long-term follow-up studies are still scarce. Purpose To evaluate the prognostic value of CCTA in patients with suspected CAD. Material and Methods A total of 1205 consecutive CCTA patients with chest pain were classified as normal coronary arteries, non-obstructive CAD, or obstructive CAD. The primary outcome was major adverse cardiac event (MACE), defined as a composite outcome including cardiac death, myocardial infarction, unstable angina pectoris, or late revascularization (after >90 days)...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29739328/a-novel-ultrafast-low-dose-computed-tomography-protocol-allows-concomitant-coronary-artery-evaluation-and-lung-cancer-screening
#8
Carlo Gaudio, Gennaro Petriello, Francesco Pelliccia, Alessandra Tanzilli, Alberto Bandiera, Gaetano Tanzilli, Francesco Barillà, Vincenzo Paravati, Massimo Pellegrini, Enrico Mangieri, Paolo Barillari
BACKGROUND: Cardiac computed tomography (CT) is often performed in patients who are at high risk for lung cancer in whom screening is currently recommended. We tested diagnostic ability and radiation exposure of a novel ultra-low-dose CT protocol that allows concomitant coronary artery evaluation and lung screening. METHODS: We studied 30 current or former heavy smoker subjects with suspected or known coronary artery disease who underwent CT assessment of both coronary arteries and thoracic area (Revolution CT, General Electric)...
May 8, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29732519/comprehensive-assessment-of-takotsubo-cardiomyopathy-by-cardiac-computed-tomography
#9
Daisuke Sueta, Seitaro Oda, Yasuhiro Izumiya, Koichi Kaikita, Masafumi Kidoh, Daisuke Utsunomiya, Yasuyuki Yamashita, Kenichi Tsujita
Cardiac computed tomography (CT) now plays an important role in emergency settings because of its accessibility and fast acquisition time, which cardiac magnetic resonance imaging (CMR) cannot match. Although cardiac CT was originally conceived for the assessment of the coronary artery tree, it has evolved to embrace several non-coronary applications. These include myocardial assessment, resulting in myocardial characterization comparable with that of CMR and cardiac CT for late enhancement imaging. In this report, we describe a patient with takotsubo cardiomyopathy who underwent a comprehensive assessment using cardiac CT...
May 7, 2018: Emergency Radiology
https://www.readbyqxmd.com/read/29729845/plan-optimization-for-mediastinal-radiotherapy-estimation-of-coronary-arteries-motion-with-ecg-gated-cardiac-imaging-and-creation-of-compensatory-expansion-margins
#10
Mario Levis, Viola De Luca, Christian Fiandra, Simona Veglia, Antonella Fava, Marco Gatti, Mauro Giorgi, Sara Bartoncini, Federica Cadoni, Domenica Garabello, Riccardo Ragona, Andrea Riccardo Filippi, Umberto Ricardi
BACKGROUND AND PURPOSE: Inadvertent heart and coronary arteries (CA) irradiation may increase the risk of coronary artery disease (CAD) in patients receiving thoracic irradiation. To date, the entity of cardiac-related CA displacement and the possible margins to be used for planning organs at risk volume (PRV) have been poorly described. Aim of this study was to quantify CA displacement and to estimate PRV through the use of ECG-gated computed tomography (CT) scans. MATERIAL AND METHODS: Eight patients received an ECG-gated intravenous contrast enhanced CT for non-cancer related reasons...
May 2, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29726546/the-role-of-standard-non-ecg-gated-chest-ct-in-cardiac-assessment-design-and-rationale-of-the-cardiac-pathologies-in-standard-chest-ct-capact-study
#11
Nienke G Eijsvoogel, Babs M F Hendriks, Hugo B Park, Sibel Altintas, Casper Mihl, Barbora Horehledova, Bastiaan L J H Kietselaer, Harry J G M Crijns, Joachim E Wildberger, Marco Das
Modern high-performance computed tomography (CT) scanners with improved scan acquisition times now allow for routine assessment of cardiac pathologies on chest CTs, which can result in numerous incidental cardiac findings. The CaPaCT study, an observer blinded, single-centre study, aims to assess the visibility, management and possible clinical impact of incidental cardiac pathologies that are now becoming visible on standard chest CTs. A total of 217 consecutive patients referred for a chest CT on a high-performance third-generation dual-source CT scanner will be included...
2018: European radiology experimental
https://www.readbyqxmd.com/read/29720565/implementation-of-a-cardiac-pet-stress-program-comparison-of-outcomes-to-the-preceding-spect-era
#12
Stacey Knight, David B Min, Viet T Le, Kent G Meredith, Ritesh Dhar, Santanu Biswas, Kurt R Jensen, Steven M Mason, Jon-David Ethington, Donald L Lappe, Joseph B Muhlestein, Jeffrey L Anderson, Kirk U Knowlton
BACKGROUND: Cardiac positron emission testing (PET) is more accurate than single photon emission computed tomography (SPECT) at identifying coronary artery disease (CAD); however, the 2 modalities have not been thoroughly compared in a real-world setting. We conducted a retrospective analysis of 60-day catheterization outcomes and 1-year major adverse cardiovascular events (MACE) after the transition from a SPECT- to a PET-based myocardial perfusion imaging (MPI) program. METHODS: MPI patients at Intermountain Medical Center from January 2011-December 2012 (the SPECT era, n = 6,777) and January 2014-December 2015 (the PET era, n = 7,817) were studied...
May 3, 2018: JCI Insight
https://www.readbyqxmd.com/read/29715123/takotsubo-cardiomyopathy-developed-after-two-stage-surgery-for-double-primary-lung-cancer
#13
Fumihiko Kinoshita, Gouji Toyokawa, Tetsuzo Tagawa, Taichi Matsubara, Yuka Kozuma, Naoki Haratake, Shinkichi Takamori, Takaki Akamine, Fumihiko Hirai, Yoshihiko Maehara
Takotsubo cardiomyopathy (TC) is a syndrome characterized by transient local systolic dysfunction of the left ventricle with no evidence of coronary artery disease or acute plaque rupture. We present the case of 71-year-old woman who developed TC after two-stage surgery for double primary lung cancer. On computed tomography, lung nodules were identified in the left upper and right middle lobes. Based on the diagnosis of double primary lung cancer, we performed two-stage surgery (left upper lobectomy followed by right middle lobectomy)...
May 2018: Anticancer Research
https://www.readbyqxmd.com/read/29713770/comprehensive-morphologic-and-functional-imaging-of-heart-transplant-patients-first-experience-with-dynamic-perfusion-ct
#14
S Oebel, S Hamada, K Higashigaito, J von Spiczak, E Klotz, F Enseleit, R Hinzpeter, F Ruschitzka, R Manka, H Alkadhi
OBJECTIVES: We aimed to assess the diagnostic performance of a combined protocol with coronary computed tomography angiography (CCTA) and stress CT perfusion imaging (CTP) in heart transplant patients for comprehensive morphological and functional imaging. METHODS: In this prospective study, 13 patients undergoing routine follow-up 8±6 years after heart transplantation underwent CCTA and dynamic adenosine stress CTP using a third-generation dual-source CT scanner, cardiac magnetic resonance (MR) adenosine stress perfusion imaging at 1...
April 30, 2018: European Radiology
https://www.readbyqxmd.com/read/29704026/the-relation-of-low-levels-of-bone-mineral-density-with-coronary-artery-calcium-and-mortality
#15
N Ahmadi, S S Mao, F Hajsadeghi, B Arnold, S Kiramijyan, Y Gao, F Flores, S Azen, M Budoff
Osteoporosis and atherosclerosis are two prevalent major healthcare concerns that frequently coexist. The clinical outcome of 5590 consecutive subjects who underwent coronary artery calcium (CAC) scanning and thoracic bone mineral density (BMD) measurement was assessed. A significant link between low BMD levels and CAC with increased risk of mortality in both genders across ethnicities noted. INTRODUCTION: While a relation of CAC with lower levels of BMD reported previously; it is unclear whether low levels of BMD would be an independent risk factor for CAC and mortality...
April 27, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29701806/high-fibroblast-growth-factor-23-is-associated-with-coronary-calcification-in-patients-with-high-adiponectin-analysis-from-the-korean-cohort-study-for-outcome-in-patients-with-chronic-kidney-disease-study
#16
Young Youl Hyun, Hyang Kim, Yun Kyu Oh, Kook-Hwan Oh, Curie Ahn, Su Ah Sung, Kyu Hun Choi, Soo Wan Kim, Kyu-Beck Lee
Background: The association between fibroblast growth factor 23 (FGF23) and coronary artery calcification (CAC) was inconclusive. Recently it was shown that adiponectin modulates renal handling of calcium and phosphorus. We hypothesized that adiponectin plays a role in the effect of FGF23 on CAC and explored whether the association between FGF23 and CAC is modified by serum adiponectin level in chronic kidney disease (CKD) patients. Methods: This cross-sectional study analyzed 1435 predialysis CKD patients from the Korean Cohort Study for Outcome in Patients with CKD cohort...
April 26, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29687696/long-term-prognostic-impact-of-non-invasive-follow-up-with-computed-tomography-angiography-in-patients-with-left-main-coronary-artery-stenting
#17
Gerard Roura, Josep Gomez-Lara, Lara Fuentes Castillo, Josè L Ferreiro, Rafael Romaguera, Luis Teruel, Montserrat Gracida Blancas, Elena Carreño, Joan A Gomez-Hospital, Angel Cequier
BACKGROUND: Left main coronary artery (LMCA) stenting is an evolving technique. Whether follow-up computed tomography angiography (CTA) might have clinical impact in these patients is controversial. The aim of present study is to compare clinical outcomes of patients with LMCA stenting followed with CTA versus patients with conventional clinical follow-up. METHODS: From 2003 to 2014 all consecutive patients with unprotected LMCA stenosis treated with single DES implantation were prospectively included...
April 20, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29685675/predictive-value-of-coronary-computed-tomography-angiography-in-asymptomatic-individuals-with-diabetes-mellitus-systematic-review-and-meta-analysis
#18
Ebba Beller, Felix G Meinel, Franziska Schoeppe, Wolfgang G Kunz, Kolja M Thierfelder, Jörg Hausleiter, Fabian Bamberg, U Joseph Schoepf, Verena S Hoffmann
BACKGROUND: Coronary CT angiography (CTA) is generally not established as a screening tool for asymptomatic individuals. However, it is controversial whether this test may have a role for screening asymptomatic individuals with diabetes mellitus (DM) due to the high prevalence of asymptomatic coronary artery disease (CAD) in this subgroup. METHODS: We searched PubMed and EMBASE through May 2017 for studies that reported on the association between findings at coronary CTA and future cardiac events in asymptomatic individuals with DM...
April 12, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29685202/correlation-between-immunological-inflammatory-markers-and-endothelial-disfunction-in-the-early-stage-of-coronary-heart-disease
#19
Viktor Persic, Ana Lanca Bastiancic, Ivan Rosovic, Damir Raljevic, Dijana Travica Samsa, Luka Bastiancic, Rajko Miskulin, Marko Boban, Gordana Laskarin
Classical risk factors for endothelial dysfunction (ED), such as age, gender, total cholesterol, high-density lipoprotein cholesterol, systolic blood pressure, and smoking history are utilised for the Framingham score and Systemic Coronary Risk Estimation (SCORE) for evaluation of the 10-year cardiovascular risk in routine practice. Nonetheless, pro-inflammatory mediators are deeply involved in the initiation and the progression of ED and coronary artery disease (CAD), and act additionally or independently of metabolic factors before clinical manifestations of the disease appear...
June 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29679631/possible-early-detection-of-coronary-artery-calcium-progression-in-type-1-diabetes-a-case-control-study-of-normoalbuminuric-type-1-diabetes-patients-and-matched-controls
#20
Henrik Ø Hjortkjær, Tonny Jensen, Jannik Hilsted, Helle Corinth, Ulrik M Mogensen, Lars Køber, Andreas Fuchs, Børge G Nordestgaard, Klaus F Kofoed
AIMS: Coronary artery calcium (CAC) is associated with cardiovascular (CV) disease and progression of CAC is an independent predictor of mortality. Type 1 diabetes is associated with increased CV risk, especially in persons with cardiovascular autonomic neuropathy (CAN). This study aimed to examine whether short-term progression of CAC is increased in persons with type 1 diabetes compared to matched controls and if CAN increases risk of CAC progression. METHODS: Fifty-three normoalbuminuric persons with long-term type 1 diabetes (20 with CAN) were matched in a 1:2 ratio with 106 controls without diabetes according to age, sex and baseline CAC...
April 18, 2018: Diabetes Research and Clinical Practice
keyword
keyword
49608
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"