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Ct calcium score

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https://www.readbyqxmd.com/read/29750809/histological-validation-of-calcifications-in-the-human-hippocampus-as-seen-on-computed-tomography
#1
Melissa E M Peters, Remko Kockelkoren, Esther J M de Brouwer, Huiberdina L Koek, Ronald L A W Bleys, Willem P Th M Mali, Jeroen Hendrikse, Annemieke M Rozemuller, Pim A de Jong
BACKGROUND: Calcifications within the hippocampus were recently described for the first time on computed tomography (CT). These calcifications appeared in patients older than 50 years, the prevalence increases with age and they may be associated with cognitive decline. The aim of this study was to determine the histological basis (the presence, severity and location) of these CT-detected hippocampal calcifications of post-mortem brains. METHODS: CT scans of seven post-mortem brains were scored for the presence and severity (mild, moderate, severe) of hippocampal calcification...
2018: PloS One
https://www.readbyqxmd.com/read/29735255/computed-tomography-predictors-of-mortality-stroke-and-conduction-disturbances-in-women-undergoing-tavr-a-sub-analysis-of-the-win-tavi-registry
#2
Marco Spaziano, Alaide Chieffo, Yusuke Watanabe, Jaya Chandrasekhar, Samantha Sartori, Thierry Lefèvre, Anna Sonia Petronio, Patrizia Presbitero, Didier Tchetche, Alessandro Iadanza, Nicholas M Van Mieghem, Julinda Mehilli, Roxana Mehran, Marie-Claude Morice
BACKGROUND: Aortic valve calcification patterns were associated with short- and long-term outcomes in previous small observational datasets of patients undergoing transcatheter aortic valve implantation (TAVI). The specific impact of multi detector-row computed tomography (MDCT) findings on outcomes in women has not been reported. We sought to describe the associations between MDCT characteristics and clinical outcomes in a registry of 547 women undergoing TAVI. METHODS: WIN-TAVI is the first all-female registry to study the safety and effectiveness of TAVI in women (n = 1019)...
April 27, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29735138/transpedicular-decompression-debridement-and-posterior-spinal-fusion-with-instrumentation-for-single-level-thoracic-spinal-tuberculosis-with-myelopathy-is-anterior-column-reconstruction-necessary
#3
Saumyajit Basu, Sri Krishna Chaitanya Kondety
OBJECTIVES: The purpose of this study is to study the safety and efficacy of single-stage transpedicular decompression/debridement and instrumented posterior spinal fusion for single-level thoracic spinal tuberculosis with myelopathy without anterior column reconstruction. SUMMARY OF BACKGROUND DATA: Existing literature has many reports of transpedicular decompression/debridement and instrumented posterior spinal fusion with anterior column reconstruction. The quoted loss of correction is around 2°, but there is no strong evidence analyzing the loss of kyphosis correction, assessment of fusion in the same, without anterior column reconstruction...
May 2018: Spine Deformity
https://www.readbyqxmd.com/read/29734858/current-and-future-applications-of-ct-coronary-calcium-assessment
#4
Christian Tesche, Taylor M Duguay, U Joseph Schoepf, Marly van Assen, Carlo N De Cecco, Moritz H Albrecht, Akos Varga-Szemes, Richard R Bayer, Ullrich Ebersberger, John W Nance, Christian Thilo
Computed tomographic (CT) coronary artery calcium scoring (CAC) has been validated as a well-established screening method for cardiovascular risk stratification and treatment management that is used in addition to traditional risk factors. The purpose of this review is to present an update on current and future applications of CAC. Areas covered: The topic of CAC is summarized from its introduction to current application with focus on the validation and clinical integration including cardiovascular risk prediction and outcome, cost-effectiveness, impact on downstream medical testing, and the technical advances in scanner and software technology that are shaping the future of CAC...
May 8, 2018: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/29713180/calcification-score-versus-arterial-stenosis-grading-comparison-of-two-ct-based-methods-for-risk-assessment-of-anastomotic-leakage-after-esophagectomy-and-gastric-pull-up
#5
De-Hua Chang, Sebastian Brinkmann, Lucy Smith, Ingrid Becker, Wolfgang Schroeder, Arnulf H Hoelscher, Stefan Haneder, David Maintz, Judith Eva Spiro
Purpose: Anastomotic leakage is a major surgical complication following esophagectomy and gastric pull-up. Specific risk factors such as celiac trunk (TC) stenosis and high calcification score of the aorta have been identified, but no data are available on their relative prognostic values. This retrospective study aimed to compare and evaluate calcification score versus stenosis quantification with regards to prognostic impact on anastomotic leakage. Patients and methods: Preoperative contrast-enhanced computed tomography scans of 164 consecutive patients with primary esophageal cancer were evaluated by two radiologists to apply a calcification score (0-3 scale) assessing the aorta, the celiac axis and the right and left postceliac arteries...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29703635/differences-in-the-association-of-total-versus-local-coronary-artery-calcium-with-acute-coronary-syndrome-and-culprit-lesions-in-patients-with-acute-chest-pain-the-coronary-calcium-paradox
#6
Stefan B Puchner, Thomas Mayrhofer, Jakob Park, Michael T Lu, Ting Liu, Pal Maurovich-Horvat, Khristine Ghemigian, Daniel O Bittner, Jerome L Fleg, James E Udelson, Quynh A Truong, Udo Hoffmann, Maros Ferencik
BACKGROUND AND AIMS: Total coronary artery calcium (CAC) burden is associated with an increased cardiovascular risk, while local CAC may represent stable plaques. We determined differences in relationship of total CAC with acute coronary syndrome (ACS) and local CAC with culprit lesions in patients with suspected ACS. METHODS: We performed computed tomography (CT) for CAC and CT angiography to assess the presence of significant stenosis and high-risk plaque (positive remodeling, low CT attenuation, napkin-ring sign, spotty calcium) in 37 patients with ACS and 223 controls...
April 17, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29696430/subtraction-ct-angiography-improves-evaluation-of-significant-coronary-artery-disease-in-patients-with-severe-calcifications-or-stents-the-c-sub-320-multicenter-trial
#7
Andreas Fuchs, J Tobias Kühl, Marcus Y Chen, David Viladés Medel, Xavier Alomar, Sujata M Shanbhag, Steffen Helqvist, Klaus F Kofoed
OBJECTIVES: Diagnostic accuracy of conventional coronary CT angiography (CCTAconv ) may be compromised by blooming artifacts from calcifications or stents. Blooming artifacts may be reduced by subtraction coronary CT angiography (CCTAsub ) in which non-contrast and contrast CT data sets are subtracted digitally. We tested whether CCTAsub in patients with severe coronary calcification or stents reduces the number of false-positive stenosis evaluations compared with CCTAconv . METHODS: In this study, 180 symptomatic patients scheduled for invasive coronary angiography (ICA) were prospectively enrolled and CT scanned (2013-2016) at three international centers...
April 25, 2018: European Radiology
https://www.readbyqxmd.com/read/29688734/assessing-the-relation-of-epicardial-fat-thickness-and-volume-quantified-by-256-slice-computed-tomography-scan-with-coronary-artery-disease-and-cardiovascular-risk-factors
#8
Maryam Mohammadzadeh, Vahid Mohammadzadeh, Madjid Shakiba, Marzieh Motevalli, Azadeh Abedini, Sakineh Kadivar, Pouya Entezari, Ali Mohammadzadeh
BACKGROUND: This study aimed to investigate the association between epicardial adipose tissue (EAT) and coronary artery disease (CAD) as well as cardiovascular risk factors. METHODS: Complete medical records of subjects were reviewed and cardiovascular risk factors were recorded. Epicardial fat volume (EFV) and epicardial fat thickness (EFT) were measured using digital volumetry of acquired images using a 256-slice CT-scanner. Calcium score was measured using Agatston method in non-contrast images...
March 1, 2018: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29674364/health-and-prevention-enhancement-h-peace-a-retrospective-population-based-cohort-study-conducted-at-the-seoul-national-university-hospital-gangnam-center-korea
#9
Changhyun Lee, Eun Kyung Choe, Ji Min Choi, Yunji Hwang, Young Lee, Boram Park, Su Jin Chung, Min-Sun Kwak, Jong-Eun Lee, Joo Sung Kim, Sue Kyung Park, Sang-Heon Cho
PURPOSE: The Health and Prevention Enhancement (H-PEACE) study was designed to investigate the association of diagnostic imaging results, biomarkers and the predisease stage of non-communicable diseases (NCDs), such as malignancies and metabolic diseases, in an average-risk population in Korea. PARTICIPANTS: This study enrolled a large-scale retrospective cohort at the Healthcare System Gangnam Center, Seoul National University Hospital, from October 2003 to December 2014...
April 19, 2018: BMJ Open
https://www.readbyqxmd.com/read/29627375/longer-diabetes-duration-reduces-myocardial-blood-flow-in-remote-myocardium-assessed-by-dynamic-myocardial-ct-perfusion
#10
Nobuo Tomizawa, Yusuke Fujino, Masaru Kamitani, Shengpu Chou, Kodai Yamamoto, Shinichi Inoh, Takeshi Nojo, Sunao Nakamura
AIMS: To investigate the relationship of type 2 diabetes duration and myocardial blood flow (MBF) assessed by myocardial CT perfusion. MATERIALS AND METHODS: We prospectively included 140 patients with type 2 diabetes who underwent dynamic myocardial CT perfusion exam. MBF of the remote myocardium was calculated using the deconvolution technique and the Voronoi method. The relationships of MBF and diabetic duration, diabetic complications, conventional risk factors, coronary calcium, and coronary stenosis were assessed by logistic regression analysis...
March 16, 2018: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/29618341/quantitative-analysis-of-near-implant-magnesium-accumulation-for-a-si-containing-coated-az31-cage-from-a-goat-cervical-spine-fusion-model
#11
Fan Zhang, Haocheng Xu, Hongli Wang, Fang Geng, Xiaosheng Ma, Minghao Shao, Shun Xu, Feizhou Lu, Jianyuan Jiang
BACKGROUND: Magnesium (Mg) released from Mg-based implants degradation is believed to be effective in improving osteogenesis, however, studies focusing on Mg-based interbody cages are limited and fusion success was never reported. As excessive Mg accumulation can inhibit new bone formation, this study is designed to explain the possible reasons for the fusion failure of Mg-based cages by analyzing the relationships between the intervertebral Mg accumulation and the resulting interbody fusion...
April 4, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29579601/circulating-interleukin-6-is-a-biomarker-for-coronary-atherosclerosis-in-nonalcoholic-fatty-liver-disease-results-from-the-multi-ethnic-study-of-atherosclerosis
#12
Tracey G Simon, Maria Esther Perez Trejo, Robyn McClelland, Ryan Bradley, Michael J Blaha, Irfan Zeb, Kathleen E Corey, Matthew J Budoff, Raymond T Chung
BACKGROUND: Biomarkers to predict the presence and severity of subclinical cardiovascular disease (CVD) in nonalcoholic fatty liver disease (NAFLD) are lacking. METHODS: 3876 participants from the Multi-Ethnic Study of Atherosclerosis (MESA), without known chronic liver disease underwent baseline non-contrast cardiac CT, with NAFLD defined by validated liver:spleen ratio (L:S) < 1.0, and subclinical CVD defined by coronary artery calcium (CAC) score > 0...
May 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29571781/influence-of-image-reconstruction-parameters-on-cardiovascular-risk-reclassification-by-computed-tomography-coronary-artery-calcium-score
#13
Cesare Mantini, Erica Maffei, Patrizia Toia, Fabrizio Ricci, Sara Seitun, Alberto Clemente, Roberto Malagò, Giuseppe Runza, Ludovico La Grutta, Massimo Midiri, Antonio Raffaele Cotroneo, Ernesto Forte, Filippo Cademartiri
OBJECTIVE: To investigate the influence of different CT reconstruction parameters on coronary artery calcium scoring (CACS) values and reclassification of predicted cardiovascular (CV) risk. METHODS: CACS was evaluated in 113 patients undergoing ECG-gated 64-slice CT. Reference CACS protocol included standard kernel filter (B35f) with slice thickness/increment of 3/1.5 mm, and field-of-view (FOV) of 150-180 mm. Influence of different image reconstruction algorithms (reconstructed slice thickness/increment 2...
April 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29564352/management-of-sequelae-of-kawasaki-disease-in-adults
#14
REVIEW
John B Gordon, Jane C Burns
Background: A growing population of young adults is presenting to cardiologists with late manifestations of Kawasaki disease (KD) that include cardiomyopathy, ischemia, and infarction. The management of these conditions differs in important ways from atherosclerotic heart disease, and yet there is little awareness in the adult cardiology community regarding the special challenges posed by the cardiovascular sequelae of KD. Methods: Observations were made on a population of 140 adult KD patients enrolled in the San Diego Adult KD Collaborative Study...
October 31, 2017: Global Cardiology Science & Practice
https://www.readbyqxmd.com/read/29562761/the-value-of-big-endothelin-1-in-the-assessment-of-the-severity-of-coronary-artery-calcification
#15
Fang Wang, Tiewei Li, Xiangfeng Cong, Zhihui Hou, Bin Lu, Zhou Zhou, Xi Chen
Progression of coronary artery calcification (CAC) was significantly associated with all-cause mortality, and high coronary artery calcium score (CACS) portends a particularly high risk of cardiovascular events. But how often one should rescan is still an unanswered question. Preliminary screening by testing circulating biomarker may be an alternative before repeat computed tomography (CT) scan. The aim of this study was to investigate the value of big endothelin-1 (bigET-1), the precursor of endothelin-1 (ET-1), in predicting the severity of CAC...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/29561783/bicuspid-aortic-valve-stenosis-and-the-effect-of-vitamin-k2-on-calcification-using-18-f-sodium-fluoride-positron-emission-tomography-magnetic-resonance-the-basik2-rationale-and-trial-design
#16
Frederique E C M Peeters, Manouk J W van Mourik, Steven J R Meex, Jan Bucerius, Simon M Schalla, Suzanne C Gerretsen, Casper Mihl, Marc R Dweck, Leon J Schurgers, Joachim E Wildberger, Harry J G M Crijns, Bas L J H Kietselaer
BASIK2 is a prospective, double-blind, randomized placebo-controlled trial investigating the effect of vitamin K2 (menaquinone-7;MK7) on imaging measurements of calcification in the bicuspid aortic valve (BAV) and calcific aortic valve stenosis (CAVS). BAV is associated with early development of CAVS. Pathophysiologic mechanisms are incompletely defined, and the only treatment available is valve replacement upon progression to severe symptomatic stenosis. Matrix Gla protein (MGP) inactivity is suggested to be involved in progression...
March 21, 2018: Nutrients
https://www.readbyqxmd.com/read/29555836/computed-tomography-aortic-valve-calcium-scoring-in-patients-with-aortic-stenosis
#17
Tania Pawade, Marie-Annick Clavel, Christophe Tribouilloy, Julien Dreyfus, Tiffany Mathieu, Lionel Tastet, Cedric Renard, Mesut Gun, William Steven Arthur Jenkins, Laurent Macron, Jacob W Sechrist, Joan M Lacomis, Virginia Nguyen, Laura Galian Gay, Hug Cuéllar Calabria, Ioannis Ntalas, Timothy Robert Graham Cartlidge, Bernard Prendergast, Ronak Rajani, Arturo Evangelista, João L Cavalcante, David E Newby, Philippe Pibarot, David Messika Zeitoun, Marc R Dweck
BACKGROUND: Computed tomography aortic valve calcium scoring (CT-AVC) holds promise for the assessment of patients with aortic stenosis (AS). We sought to establish the clinical utility of CT-AVC in an international multicenter cohort of patients. METHODS AND RESULTS: Patients with AS who underwent ECG-gated CT-AVC within 3 months of echocardiography were entered into an international, multicenter, observational registry. Optimal CT-AVC thresholds for diagnosing severe AS were determined in patients with concordant echocardiographic assessments, before being used to arbitrate disease severity in those with discordant measurements...
March 2018: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29554376/high-sensitivity-cardiac-troponin-i-is-a-biomarker-for-occult-coronary-plaque-burden-and-cardiovascular-events-in-patients-with-rheumatoid-arthritis
#18
George A Karpouzas, Joel Estis, Panteha Rezaeian, John Todd, Matthew J Budoff
Objectives: Patients with RA display greater occult coronary atherosclerosis burden and experience higher cardiovascular morbidity and mortality compared with controls. We here explored whether pro-inflammatory cytokines and high-sensitivity cardiac troponin I (hs-cTnI), a biomarker of myocardial injury, correlated with plaque burden and cardiovascular events (CVEs) in RA. Methods: We evaluated 150 patients with 64-slice coronary CT angiography. Coronary artery calcium, number of segments with plaque (segment involvement score), stenotic severity and plaque burden were assessed...
June 1, 2018: Rheumatology
https://www.readbyqxmd.com/read/29551663/high-pitch-versus-sequential-mode-for-coronary-calcium-in-individuals-with-a-high-heart-rate-potential-for-dose-reduction
#19
Marleen Vonder, Rozemarijn Vliegenthart, Merel A Kaatee, Carlijn M van der Aalst, Peter M A van Ooijen, Geertruida H de Bock, Jan Willem Gratama, Dirkjan Kuijpers, Harry J de Koning, Matthijs Oudkerk
BACKGROUND: To determine the impact of high-pitch spiral acquisition on radiation dose and cardiovascular disease (CVD) risk stratification by coronary artery calcium (CAC) assessment with computed tomography in individuals with a high heart rate. METHODS: Of the ROBINSCA trial, 1990 participants with regular rhythm and heart rates >65 beats per minute (bpm) were included. As reference, 390 participants with regular heart rates ≤65 bpm were used. All participants underwent prospectively electrocardiographically(ECG)-triggered imaging of the coronary arteries using dual source CT at 120 kVp, 80 ref mAs using both high-pitch spiral mode and sequential mode...
March 1, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29540942/detection-of-coronary-artery-calcification-with-nontriggered-computed-tomography-of-the-chest
#20
Gustavo Lemos Pelandré, Nathália Martins Pereira Sanches, Marcelo Souto Nacif, Edson Marchiori
Objective: To evaluate the accuracy of visual analysis and of the coronary artery calcium (CAC) score in nontriggered computed tomography (CT), in comparison with that of the CAC score in electrocardiogram-triggered CT, in identifying coronary calcification. Materials and Methods: A total of 174 patients for whom CT was indicated for CAC scoring underwent nontriggered and triggered CT in a 64-channel multislice scanner, in a single session without a change in position...
January 2018: Radiologia Brasileira
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