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Non calcified plaque

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https://www.readbyqxmd.com/read/29274406/association-between-nonalcoholic-fatty-liver-disease-and-subclinical-coronary-atherosclerosis-an-observational-cohort-study
#1
Seung Bum Lee, Gyung-Min Park, Jong-Young Lee, Byung Uk Lee, Jae Ho Park, Byung Gyu Kim, Seok Won Jung, In Du Jeong, Sung-Jo Bang, Jung Woo Shin, Neung Hwa Park, Dong Hyun Yang, Joon-Won Kang, Tae-Hwan Lim, Hong-Kyu Kim, Jaewon Choe, Han Chu Lee
BACKGROUND & AIMS: There are limited data on the association between nonalcoholic fatty liver disease (NAFLD) and subclinical coronary atherosclerosis. This study investigated the influence of NAFLD on subclinical coronary atherosclerosis as detected by coronary computed tomographic angiography (CCTA) in an asymptomatic population. METHODS: A total of 5,121 consecutive asymptomatic individuals with no prior history of coronary artery disease or significant alcohol intake voluntarily underwent abdominal ultrasonography and CCTA as part of a general health examination...
December 20, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29237273/a-novel-mechanism-for-atherosclerotic-calcification-potential-resolution-of-the-oxidation-paradox
#2
Aladdin Riad, Chandrakala Aluganti Narasimhulu, Pragney Deme, Sampath Parthasarathy
AIM: In this study, we tested the hypothesis that lipid peroxide-derived dicarboxylic acids, by virtue of their ability bind to calcium, might be involved in atherosclerotic calcification. We determined the ability of azelaic acid (AzA) to promote calcification in human aortic smooth muscle cells (HASMC), identified AzA in human calcified atherosclerotic lesions, and compared its levels with control and non-calcified atherosclerotic lesions. RESULTS: HASMCs efficiently converted 9-oxononanoic acid (ONA), a lipid peroxide derived monocarboxylic aldehyde, to AzA...
December 14, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29211402/sonographic-patterns-of-peyronie-s-disease-in-patients-with-absence-of-palpable-plaques
#3
Lucio Dell'Atti, Andrea Benedetto Galosi
PURPOSE: Non-palpable isolated septal plaques of the penis are likely present in a significant number of patients affected by erectile dysfunction (ED) and penile pain without deformity or curvature. The aim of this study was to evaluate the ultrasound (US) patterns observed in patients investigated for ED or penile pain without curvature. MATERIALS AND METHODS: We reviewed the medical records of 386 patients who underwent an initial colour-Doppler ultrasonography (CDU) of the penis for DE and/or penile pain without curvature...
December 7, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29205743/rotational-atherectomy-and-new-generation-drug-eluting-stent-implantation
#4
Daisuke Hachinohe, Yoshifumi Kashima, Daitaro Kanno, Ken Kobayashi, Takuro Sugie, Umihiko Kaneko, Yutaka Tadano, Tomohiko Watanabe, Hidemasa Shitan, Tsutomu Fujita
OBJECTIVES: The aim of this study was to evaluate the clinical outcomes of rotational atherectomy (RA) followed by new-generation drug-eluting stent (DES) implantation in patients with an extensive amount of calcified and fibrotic plaque. BACKGROUND: RA followed by new-generation DES implantation for complex lesions has not been thoroughly evaluated. METHODS: A total of 744 consecutive patients (770 lesions) treated with new-generation DES implantation following RA for de novo lesions between January 2013 and November 2015 were retrospectively identified using our institutional database...
December 5, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29195505/type-2-diabetes-mellitus-is-associated-with-a-lower-fibrous-cap-thickness-but-has-no-impact-on-calcification-morphology-an-intracoronary-optical-coherence-tomography-study
#5
Andrea Milzi, Mathias Burgmaier, Kathrin Burgmaier, Martin Hellmich, Nikolaus Marx, Sebastian Reith
BACKGROUND: Patients with type 2 diabetes (T2DM) are at high risk for cardiovascular events, which usually arise from the rupture of a vulnerable coronary plaque. The minimal fibrous cap thickness (FCT) overlying a necrotic lipid core is an established predictor for plaque rupture. Recently, coronary calcification has emerged as a relevant feature of plaque vulnerability. However, the impact of T2DM on these morphological plaque parameters is largely unexplored. Therefore, this study aimed to compare differences of coronary plaque morphology in patients with and without T2DM with a particular focus on coronary calcification...
December 1, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29193860/higher-coronary-plaque-burden-in-psoriatic-arthritis-is-independent-of-metabolic-syndrome-and-associated-with-underlying-disease-severity
#6
Agnes Szentpetery, Gerard M Healy, Darragh Brady, Muhammad Haroon, Phil Gallagher, Ciaran E Redmond, Hannah Fleming, John Duignan, Jonathan D Dodd, Oliver FitzGerald
OBJECTIVES: To examine the effect of metabolic syndrome (Metsy) and psoriatic disease-related variables on coronary plaque burden in psoriatic arthritis (PsA) patients. METHODS: 50 PsA patients without symptoms of coronary artery disease (CAD) (25 with Metsy and 25 without (NMetsy)) and 50 age and sex-matched controls underwent 64-slice coronary CT angiography (CCTA). Plaque localisation, segment involvement score (SIS), stenosis severity score (SSS) and total plaque volume (TPV) were calculated...
November 28, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29113983/fgf23-concentration-and-apol1-genotype-are-novel-predictors-of-mortality-in-african-americans-with-type-2-diabetes
#7
Gary C Chan, Jasmin Divers, Gregory B Russell, Carl D Langefeld, Lynne E Wagenknecht, Fang-Chi Hsu, Jianzhao Xu, S Carrie Smith, Nicholette D Palmer, Pamela J Hicks, Donald W Bowden, Thomas C Register, Lijun Ma, J Jeffrey Carr, Barry I Freedman
OBJECTIVE: Cardiovascular and renal complications contribute to higher mortality in patients with diabetes. We assessed novel and conventional predictors of mortality in African American-Diabetes Heart Study (AA-DHS) participants. RESEARCH DESIGN AND METHODS: Associations between mortality and subclinical atherosclerosis, urine albumin-to-creatinine ratio (UACR), estimated glomerular filtration rate (eGFR), plasma fibroblast growth factor 23 (FGF23) concentration, African ancestry proportion, and apolipoprotein L1 genotypes (APOL1) were assessed in 513 African Americans with type 2 diabetes; analyses were performed using Cox proportional hazards models...
January 2018: Diabetes Care
https://www.readbyqxmd.com/read/29089685/use-of-multidetector-computed-tomography-angiography-of-upper-limb-circulation-in-patients-undergoing-coronary-artery-bypass-grafting-surgery
#8
Hasan B Altinsoy, Ozkan Alatas, Hidayet Kayancicek, Erhan Hafiz, Omer F Dogan
OBJECTIVE: This study aimed to evaluate the bilateral forehand circulation using a 64-channel multidetector computed tomography (MDCT) as a noninvasive method to define criteria for an upper extremity arterial anatomy and pathology prior to the use of arterial conduits. MATERIALS AND METHODS: Fifty-five patients with coronary artery disease who underwent total arterial coronary artery bypass grafting (CABG) were randomly selected for this prospective study. MDCT angiography was performed for 110 examinations of forearm and hand arterial anatomy...
July 2017: Indian Journal of Radiology & Imaging
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
#9
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/28931782/tumor-necrosis-factor-%C3%AE-gene-expression-in-epicardial-adipose-tissue-is-related-to-coronary-atherosclerosis-assessed-by-computed-tomography
#10
Toshiro Kitagawa, Hideya Yamamoto, Takuya Hattori, Kazuhiro Sentani, Shinya Takahashi, Atsuhiro Senoo, Yumiko Kubo, Wataru Yasui, Taijiro Sueda, Yasuki Kihara
AIMS: Tumor necrosis factor (TNF)-α reportedly has key pro-inflammatory properties in both atherosclerosis and adipocytes. To further investigate the biologic impact of epicardial adipose tissue (EAT) on coronary atherosclerosis, we evaluated the relationship between TNF-α gene expression in EAT and clinically-assessed coronary atherosclerosis on computed tomography (CT). METHODS: We studied 47 patients before cardiac surgery (coronary artery bypass grafting [CABG], n=26; non-CABG, n=21), assessing visceral adipose tissue (VAT) area, EAT volume, coronary calcium score (CCS), and the presence of non- and/or partially-calcified coronary plaque (NCP) on CT angiography...
September 20, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28930079/epicardial-adipose-tissue-volume-and-cardiovascular-risk-indices-among-asymptomatic-women-with-and-without-hiv
#11
Suman Srinivasa, Michael T Lu, Kathleen V Fitch, Travis R Hallett, Timothy K O'Malley, Lauren A Stone, Amanda Martin, Alexandra J Coromilas, Tricia H Burdo, Virginia A Triant, Janet Lo, Sara E Looby, Tomas G Neilan, Markella V Zanni
BACKGROUND: Mechanisms underlying the heightened myocardial infarction risk among HIV-infected women (versus non-HIV-infected women) remain unclear. Our objectives were to assess epicardial adipose tissue (EAT) volume and its associations among asymptomatic women with and without HIV. METHODS: Fifty-five HIV-infected and 27 non-HIV-infected women without known cardiovascular disease who underwent cardiac CT and metabolic/immune phenotyping were included. EAT volume derived from CT was compared among women with and without HIV, and within-group EAT associations were assessed...
September 20, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28886899/frailty-and-subclinical-coronary-atherosclerosis-the-multicenter-aids-cohort-study-macs
#12
Sai Krishna C Korada, Di Zhao, Martin Tibuakuu, Todd T Brown, Lisa P Jacobson, Eliseo Guallar, Robert K Bolan, Frank J Palella, Joseph B Margolick, Jeremy J Martinson, Matthew J Budoff, Wendy S Post, Erin D Michos
BACKGROUND AND AIMS: Frailty and cardiovascular disease share many risk factors. We evaluated whether frailty is independently associated with subclinical coronary atherosclerosis and whether any relationships differ by HIV-serostatus. METHODS: We studied 976 [62% HIV-infected] male participants of the Multicenter AIDS Cohort Study who underwent assessment of frailty and non-contrast cardiac CT scanning; of these, 747 men also underwent coronary CT angiography (CCTA)...
November 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28871240/in-vivo-and-in-vitro-analysis-in-coronary-artery-disease-related-to-type-2-diabetes
#13
Teresa Infante, Ernesto Forte, Marco Aiello, Marco Salvatore, Carlo Cavaliere
AIM: The leading cause of morbidity and mortality in patients with type 2 diabetes mellitus (DM) is coronary artery disease (CAD), a condition often asymptomatic but severe in these patients. Although glucose metabolism impairment and oxidative stress are known actors in the endothelial dysfunction/remodeling that occurs in diabetic patients, the relationship between cardiovascular disorders and DM is not fully understood. We have performed both an in vivo imaging and in vitro molecular analysis to investigate diabetic-specific CAD alterations...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28866908/high-burden-of-coronary-atherosclerosis-in-patients-with-a-new-diagnosis-of-type-2-diabetes
#14
Monija Mrgan, Kristian L Funck, Sara Gaur, Kristian A Øvrehus, Damini Dey, Martin W Kusk, Bjarne L Nørgaard, Jørgen B Gram, Michael H Olsen, Jeppe Gram, Niels Peter R Sand
PURPOSE: The purposes of this study were to compare the presence, extent and composition of coronary plaques in asymptomatic patients with newly diagnosed type 2 diabetes to age- and sex-matched controls. METHODS: Patients with newly diagnosed (<1 year) type 2 diabetes ( n = 44) and controls ( n = 44) underwent contrast-enhanced coronary computed tomography angiography. Advanced plaque analysis including total plaque volume and volumes of plaque components (calcified plaque and non-calcified plaque, including low-attenuation [low-density non-calcified plaque]) was performed using validated semi-automated software...
September 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28836052/coronary-ct-angiography-characteristics-of-oct-defined-thin-cap-fibroatheroma-a-section-to-section-comparison-study
#15
Dong Hyun Yang, Soo-Jin Kang, Hyun Jung Koo, Mineok Chang, Joon-Won Kang, Tae-Hwan Lim, Seunghee Baek, Seungbong Han, Pil Hyung Lee, Jae-Hyung Roh, Jung-Min Ahn, Duk-Woo Park, Seung-Whan Lee, Cheol Whan Lee, Seong-Wook Park, Seung-Jung Park, Gary S Mintz, Young-Hak Kim
OBJECTIVES: To evaluate whether plaque characteristics as assessed by coronary computed tomography angiography (CCTA) were associated with the presence of a thin-cap fibroatheroma (TCFA)-a precursor of plaque rupture-defined by optical coherence tomography (OCT) in a section-to-section-level comparison. METHODS: From 28 symptomatic patients, 31 coronary lesions were evaluated on 727 cross-sections co-registered by both CCTA and OCT. CCTA plaque characteristics included low attenuation plaque (LAP, <30 HU), napkin ring sign (NRS), positive remodelling (PR, remodelling index ≥1...
August 23, 2017: European Radiology
https://www.readbyqxmd.com/read/28797740/framework-for-detection-and-localization-of-coronary-non-calcified-plaques-in-cardiac-cta-using-mean-radial-profiles
#16
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/28789941/effect-of-the-ratio-of-coronary-arterial-lumen-volume-to-left-ventricle-myocardial-mass-derived-from-coronary-ct-angiography-on-fractional-flow-reserve
#17
Charles A Taylor, Sara Gaur, Jonathon Leipsic, Stephan Achenbach, Daniel S Berman, Jesper M Jensen, Damini Dey, Hans Erik Bøtker, Hyun Jin Kim, Sophie Khem, Alan Wilk, Christopher K Zarins, Hiram Bezerra, John Lesser, Brian Ko, Jagat Narula, Amir Ahmadi, Kristian A Øvrehus, Fred St Goar, Bernard De Bruyne, Bjarne L Nørgaard
BACKGROUND: We hypothesize that in patients with suspected coronary artery disease (CAD), lower values of the ratio of total epicardial coronary arterial lumen volume to left ventricular myocardial mass (V/M) result in lower fractional flow reserve (FFR). METHODS: V/M was computed in 238 patients from the NXT trial who underwent coronary computed tomography angiography (CTA), quantitative coronary angiography (QCA) and FFR measurement in 438 vessels. Nitroglycerin was administered prior to CT, QCA and FFR acquisition...
August 3, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28775206/clinical-molecular-imaging-of-chemokine-receptor-cxcr4-expression-in-atherosclerotic-plaque-using-68-ga-pentixafor-pet-correlation-with-cardiovascular-risk-factors-and-calcified-plaque-burden
#18
Desiree Weiberg, James T Thackeray, Guenter Daum, Jan M Sohns, Saskia Kropf, Hans-Jürgen Wester, Tobias L Ross, Frank M Bengel, Thorsten Derlin
The CXC-motif chemokine receptor 4 (CXCR4) represents a promising target for molecular imaging of different CXCR4+ cell types in cardiovascular diseases including atherosclerosis and arterial wall injury. The aim of this study was to assess the prevalence, pattern, and clinical correlates of arterial wall accumulation of (68)Ga-Pentixafor, a specific CXCR4 ligand for positron emission tomography (PET). Methods: Data of fifty-one patients who underwent (68)Ga-Pentixafor PET/computed tomography (PET/CT) for non-cardiovascular indications were retrospectively analyzed...
August 3, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28766865/trapping-as-retrieval-technique-to-resolve-a-ruptured-and-entrapped-coronary-balloon-catheter
#19
Javier León Jiménez, Jessica Roa Garrido, Santiago Jesús Camacho Freire, José Francisco Díaz Fernández
A 69 year old male, with a previous percutaneous revascularization of the mid-circumflex with a bare metal stent in 2007 was admitted to our centre for unstable angina. The angiography showed a severely calcified coronary tree with a functionally severe plaque on the proximal left anterior descending artery (LAD) and a critical focal lesion on the proximal right coronary artery. After a high pressure predilation on the proximal LAD, the balloon ruptured causing a retrograde LAD-left main (LM) dissection that was rapidly sealed with three overlapping zotarolimus-eluting stents from medial LAD to LM...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28726114/sex-related-differences-in-serum-matrix-metalloproteinase-9-screening-non-calcified-and-mixed-coronary-atherosclerotic-plaques-in-outpatients-with-chest-pain
#20
Chun Gu, Fang Wang, Zhihui Hou, Bin Lv, Yang Wang, Xiangfeng Cong, Xi Chen
The objective of this study is to evaluate the clinical feasibility of serum matrix metalloproteinase-9 (MMP-9) for screening plaque composition as assessed by coronary computed tomography angiography (CCTA) in outpatients with chest pain,and the effects of sex on this feasibility. Eight hundred and sixty-two consecutive outpatients with chest pain were divided into three groups according to the results of CCTA: non-plaque (NP, n = 474), calcified plaques (CPs, n = 179), non-calcified and mixed plaques (NCPs and MPs, n = 209)...
December 2017: Heart and Vessels
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