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Coronary ct angiography

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https://www.readbyqxmd.com/read/29679687/a-novel-technique-indocyanine-green-angiography-to-prognosticate-healing-of-foot-ulcer-in-critical-limb-ischemia
#1
Hiten M Patel, Shahzad S Bulsara, Shubhabrata Banerjee, Tapish Sahu, Virender K Sheorain, Tarun Grover, Rajiv Parakh
BACKGROUND: To predict wound healing in patients with critical limb ischemia(CLI) is ongoing issue. Currents methods like ankle-brachial index (ABI), color doppler and transcutaneous oxygen pressure (TCPO2 ), CT angiography are lacking in demonstrating regional perfusion. Indocyanine green angiography (ICGA) has the potential to provide regional perfusion information lacking in other methods. To demonstrate successes of revascularization procedure in CLI patients based on ICGA data this study was conducted...
April 18, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29679191/myocardial-flow-reserve-derived-by-dynamic-perfusion-single-photon-emission-computed-tomography-reflects-the-severity-of-coronary-atherosclerosis
#2
Nobuo Iguchi, Yuko Utanohara, Yasuhiro Suzuki, Makoto Suzuki, Kenichi Hagiya, Ryosuke Higuchi, Itaru Takamisawa, Tetsuya Tobaru, Tetsuya Sumiyoshi, Mitsuaki Isobe
A novel single-photon emission computed tomography (SPECT) camera was developed to evaluate dynamic myocardial perfusion flow. However, it is unclear whether myocardial flow reserve (MFR) derived by dynamic perfusion SPECT using the novel SPECT camera (D-SPECT) reflects the severity of coronary atherosclerosis. In the present study, we therefore examined the relationship between MFR using D-SPECT and severity of coronary lesions. The study population comprised 40 patients who underwent both a myocardial dynamic perfusion SPECT study and invasive coronary angiography...
April 20, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29671538/stable-coronary-artery-disease-treatment
#3
Michael M Braun, William A Stevens, Craig H Barstow
Stable coronary artery disease refers to a reversible supply/demand mismatch related to ischemia, a history of myocardial infarction, or the presence of plaque documented by catheterization or computed tomography angiography. Patients are considered stable if they are asymptomatic or their symptoms are controlled by medications or revascularization. Treatment involves risk factor management, antiplatelet therapy, and antianginal medications. Tobacco cessation, exercise, and weight loss are the most important lifestyle modifications...
March 15, 2018: American Family Physician
https://www.readbyqxmd.com/read/29670522/dabigatran-added-to-dual-antiplatelet-therapy-to-treat-a-left-ventricular-thrombus-in-an-87-year-old-patient-with-myocardial-infarction-and-very-high-bleeding-risk
#4
Maria Noflatscher, Nicolas Moes, Eva-Maria Gassner, Peter Marschang
Background: A left ventricular (LV) thrombus is detected in approximately 5-10% of patients after myocardial infarction (MI). If left untreated, these LV thrombi carry a significant risk of complications including embolic stroke. According to current guidelines, anticoagulation with vitamin K antagonists (VKA) is recommended to treat a LV thrombus. Case presentation: An 87 year old patient was referred to our department with non ST-elevation MI. Five months before, he had been diagnosed with a subacute ST elevation MI, which had been treated conservatively...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29669944/neutrophil-subsets-and-their-gene-signature-associate-with-vascular-inflammation-and-coronary-atherosclerosis-in-lupus
#5
Philip M Carlucci, Monica M Purmalek, Amit K Dey, Yenealem Temesgen-Oyelakin, Simantini Sakhardande, Aditya A Joshi, Joseph B Lerman, Alice Fike, Michael Davis, Jonathan H Chung, Martin P Playford, Mohammad Naqi, Pragnesh Mistry, Gustavo Gutierrez-Cruz, Stefania Dell'Orso, Faiza Naz, Taufiq Salahuddin, Balaji Natarajan, Zerai Manna, Wanxia L Tsai, Sarthak Gupta, Peter Grayson, Heather Teague, Marcus Y Chen, Hong-Wei Sun, Sarfaraz Hasni, Nehal N Mehta, Mariana J Kaplan
BACKGROUND: Systemic lupus erythematosus (SLE) is associated with enhanced risk of atherosclerotic cardiovascular disease not explained by Framingham risk score (FRS). Immune dysregulation associated to a distinct subset of lupus proinflammatory neutrophils (low density granulocytes; LDGs) may play key roles in conferring enhanced CV risk. This study assessed if lupus LDGs are associated with in vivo vascular dysfunction and inflammation and coronary plaque. METHODS: SLE subjects and healthy controls underwent multimodal phenotyping of vascular disease by quantifying vascular inflammation (18F-fluorodeoxyglucose-PET/CT [18F-FDG-PET/CT]), arterial dysfunction (EndoPAT and cardio-ankle vascular index), and coronary plaque burden (coronary CT angiography)...
April 19, 2018: JCI Insight
https://www.readbyqxmd.com/read/29668609/the-success-of-opening-single-chronic-total-occlusion-lesions-to-improve-myocardialviabilitytrial-sos-comedy-study-protocol-of-a-prospective-multicenter-study
#6
Rongchong Huang, Xiantao Song, Haishan Zhang, Wen Tian, Zheng Huang, Xingwei Zhang, Junqing Yang, Dongfeng Zhang, Jian Wu, Lei Zhong, Henry H Ting
AIMS: Success of opening single (SOS)-comedy is a prospective multicenter study to compare the improvement in the decrease of myocardial viability by percutaneous coronary intervention (PCI) with that by optimal medical therapy (OMT) alone in patients with chronic total occlusion (CTO) of a single coronary artery. METHODS AND RESULTS: The risks and the benefits of both options (PCI and OMT) were listed in a CTO decision aid (DA). Eligible participants detected by invasive coronary angiography (ICA) or coronary computed tomography angiography (CCTA) were divided into PCI or OMT groups according to patients' choice after shared-decision making process with DA...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29667891/diagnostic-performance-of-a-novel-coronary-ct-angiography-algorithm-prospective-multicenter-validation-of-an-intracycle-ct-motion-correction-algorithm-for-diagnostic-accuracy
#7
Daniele Andreini, Fay Y Lin, Asim Rizvi, Iksung Cho, Ran Heo, Gianluca Pontone, Antonio L Bartorelli, Saima Mushtaq, Todd C Villines, Patricia Carrascosa, Byoung Wook Choi, Stephen Bloom, Han Wei, Yan Xing, Dan Gebow, Heidi Gransar, Hyuk-Jae Chang, Jonathon Leipsic, James K Min
OBJECTIVE: Motion artifact can reduce the diagnostic accuracy of coronary CT angiography (CCTA) for coronary artery disease (CAD). The purpose of this study was to compare the diagnostic performance of an algorithm dedicated to correcting coronary motion artifact with the performance of standard reconstruction methods in a prospective international multicenter study. SUBJECTS AND METHODS: Patients referred for clinically indicated invasive coronary angiography (ICA) for suspected CAD prospectively underwent an investigational CCTA examination free from heart rate-lowering medications before they underwent ICA...
April 18, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29667032/contrast-opacification-difference-of-mural-artery-and-the-transluminal-attenuation-gradient-on-coronary-computed-tomography-angiography-for-detection-of-systolic-compression-of-myocardial-bridge
#8
Yuanliang Xie, Xiang Wang, Wei Xie, Faxiang Chen, Shubo Gao, Yikai Xu
PURPOSE: Myocardial bridges (MB) have traditionally been considered a benign condition, but recent studies have demonstrated that the clinical complications can be dangerous. The transluminal attenuation gradient (TAG) obtained from coronary computed tomography angiography (CCTA) data (Retrospective ECG-triggered method) has been used in detecting significant stenosis in coronary artery caused by atherosclerosis. Contrast opacification difference (COD) was the parameters calculated as the change between attenuation of mural artery and the median attenuation of presumptive vessel segment; it was evaluated along with TAGstandardized (TAGs) and MB length for predicting MB with systolic compression (MB-SC) in patients diagnosed as MB in left anterior descending coronary artery (LAD) by CCTA or invasive coronary angiograph (ICA)...
April 17, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29661666/pseudo-wellens-syndrome-and-intermittent-left-bundle-branch-block-in-a-case-of-acute-cholecystitis
#9
Steffen Grautoff, Martin Balog, Guenther Winde
We present a case of a 54-year-old male patient who was admitted to our Emergency Department (ED) with localized epigastric pain. Inflammation markers, ultrasound, and CT scan were inconsistent with an initial diagnosis of cholecystitis. However, there was additional evidence of cholecystolithiasis. The ECG showed new anterior biphasic T waves typical for a Wellens' type A ECG. Additionally, the patient had an intermittent left bundle branch block (LBBB). The diagnostic challenges in differentiating possible diagnoses will be described, to which in this case, were either acute cholecystitis or acute coronary syndrome (ACS)...
April 7, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29657734/treatment-of-a-patient-with-acute-aortic-dissection-using-extracorporeal-cardiopulmonary-resuscitation-after-an-out-of-hospital-cardiac-arrest-a-case-report
#10
Takahiro Yukawa, Kazuhiro Sugiyama, Kazuki Miyazaki, Takahiro Tanabe, Susumu Ishikawa, Yuichi Hamabe
Case: Circulatory support using veno-arterial extracorporeal membrane oxygenation for aortic disease is conventionally contraindicated. In this case, a 66-year-old man experienced cardiopulmonary arrest caused by acute aortic dissection. When exercising in the gym, he experienced chest discomfort, so the staff immediately called an ambulance. While in the ambulance, he experienced cardiopulmonary arrest. His initial electrocardiogram showed ventricular fibrillation. At the emergency department, we immediately performed extracorporeal cardiopulmonary resuscitation...
April 2018: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29652747/the-incremental-clinical-value-of-cardiac-hybrid-spect-cta-imaging-in-coronary-artery-disease
#11
Lin Qiu, Hui Tan, Dengfeng Cheng, Hongcheng Shi
Coronary artery disease (CAD) is a major cause of death worldwide. It is significantly important to assess the coronary lesion and its pathophysiological relevance comprehensively. Coronary computed tomography angiography (CTA) or myocardial perfusion imaging alone suffers from some limitations in the evaluation of CAD. Through the integration and spatial colocalization of complementary morphological and functional information, the results of published hybrid single-photon emission computed tomography (SPECT)/CTA studies in patients with CAD are promising for detecting functionally relevant coronary artery lesion and evaluating the relationship between diseased coronary artery, coronary artery anomaly, myocardial bridging, or coronary calcification and myocardial ischemia...
April 12, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29651533/spatial-orientation-of-coronary-arteries-and-its-implication-for-breast-and-thoracic-radiotherapy-proposing-coronary-strip-as-a-new-organ-at-risk
#12
Anusheel Munshi, Nilaxi Khataniar, Biplab Sarkar, Moti Lal Bera, Bidhu Kalyan Mohanti
OBJECTIVES: Radiotherapy for breast cancer has been associated with various side effects including cardiac sequelae. Our study aimed to define the spatial arc of spread of coronary vessels in a radian angle. MATERIALS AND METHODS: We analysed the records of 51 CT coronary angiographies done in our hospital from January 2016 to July 2016. Left anterior descending (LAD) and right coronary (RC) were contoured for each patient. In each axial section, the radial spread of each artery was noted...
April 12, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29650121/prediction-of-abnormal-myocardial-relaxation-from-signal-processed-surface-ecg
#13
Partho P Sengupta, Hemant Kulkarni, Jagat Narula
BACKGROUND: Myocardial relaxation is impaired in almost all cases with left ventricular diastolic dysfunction (LVDD) and is a strong predictor of cardiovascular and all-cause mortality. OBJECTIVES: This study investigated the feasibility of signal-processed surface electrocardiography (spECG) as a diagnostic tool for predicting the presence of abnormal cardiac muscle relaxation. METHODS: A total of 188 outpatients referred for coronary computed tomography (CT) angiography underwent an echocardiogram for assessment of LVDD...
April 17, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29644449/predictive-performance-of-dual-modality-of-computed-tomography-angiography-and-intravascular-ultrasound-for-no-reflow-phenomenon-after-percutaneous-coronary-stenting-in-stable-coronary-artery-disease
#14
Masaaki Okutsu, Takeshi Horio, Hisataka Tanaka, Maki Akiyama, Niro Okimoto, Toshiyuki Tsubouchi, Kenji Kawajiri, Yasuhiro Ohashi, Satoru Sumitsuji, Yuji Ikari
Attenuated plaque on intravascular ultrasound (IVUS) and low attenuation plaque on computed tomography angiography (CTA) are associated with no-reflow phenomenon during percutaneous coronary intervention (PCI). However, evaluation by a single modality has been unable to satisfactorily predict this phenomenon. We investigated whether the combination of IVUS and CTA findings can ameliorate the predictive potential for no-reflow phenomenon after stent implantation during PCI in stable coronary artery disease (CAD)...
April 11, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29622998/double-right-coronary-artery-detected-on-coronary-computed-tomography-angiography-a-case-report
#15
Osman Mohamed Elfadil, Yahya Mohamed Al Wahshi, Ahmed Al Shamakhi
Double right coronary artery is a relatively rare coronary anomaly. In this case report we aim to increase awareness of the importance of recognizing such anomaly and a brief literature review of similar cases and possible high risk features. Computed Tomography is well recognized modality to detect coronary anomaly and in our case we demonstrated this as well.
March 2018: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622992/the-degree-of-hair-graying-as-an-independent-risk-marker-for-coronary-artery-disease-a-ct-coronary-angiography-study
#16
Amr Abdel Aziz ElFaramawy, Irini Samuel Hanna, Reham Mohamed Darweesh, Ahmed Shehata Ismail, Hossam Ibrahim Kandil
Background: Cardiovascular disease is a leading cause of death worldwide. Aging is an unavoidable coronary risk factor and is associated with dermatological signs that could be a marker for increased coronary risk. We tested the hypothesis that hair graying as a visible marker of aging is associated with risk of coronary artery disease (CAD) independent of chronological age. Methods: This cross-sectional study included 545 males who underwent a computed tomography coronary angiography (CTCA) for suspicious of CAD, patients were divided into subgroups according to the percentage of gray/white hairs (Hair Whitening Score, HWS: 1-5) and to the absence or presence of CAD...
March 2018: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622983/myocardial-bridging-as-one-of-the-causes-of-atypical-chest-pain-in-young-women
#17
M Jukić, L Pavić, I Bitunjac, T Jukić, M Milošević, D Lovrić, M Lovrić Benčić
Introduction: Myocardial bridging is congenital anomaly which usually has benign prognosis but there are also reports suggesting that it can be associated with ischemic clinical syndromes presenting with chest pain. Coronary computed tomography angiography is a well-established method for detecting myocardial bridging. However, clinical significance of this anomaly still remains unclear. Methods: We studied 977 patients who presented with recurrent typical or atypical chest pain in outpatient clinic...
December 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622979/anomalous-origin-of-left-main-coronary-artery-from-the-right-sinus-of-valsalva-presenting-as-non-st-elevation-acute-coronary-syndrome-a-case-report
#18
Anish Hirachan, Arun Maskey, Gopi Prasad Hirachan, Madhu Roka
Congenital anomalies of the coronary arteries are a cause of sudden cardiac death. Of the known anatomic variants, anomalous origination of a coronary artery from an opposite sinus of Valsalva (ACAOS) remains a major clinical issue and a challenging condition to treat. Congenital coronary anomalies are likely to be under-recognized, as completing an anatomic assessment in a very large portion of the population would seem unfeasible. However, we present a case report with image of a 49 year old male presented with acute non-ST elevation ACS for which he underwent diagnostic angiography of the coronary system which revealed a common origin of both right and left main coronary artery from right sinus of Valsalva with significant obstructive lesion in the mid segment of right coronary artery...
September 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622443/pericardial-and-visceral-but-not-total-body-fat-are-related-to-global-coronary-and-extra-coronary-atherosclerotic-plaque-burden
#19
Gaston A Rodriguez-Granillo, Exequiel Reynoso, Carlos Capunay, Jimena Carpio, Patricia Carrascosa
BACKGROUND: To explore the relationship between coronary and extra-coronary atherosclerotic plaque burden with total and regional fat depots among patients undergoing ECG-gated aortic computed tomography angiography (CTA). METHODS: The subjects of this study comprised a cohort of consecutive patients who underwent ECG-gated thoracoabdominal CTA. We assessed the number of coronary segments with plaques (segment-involvement score, SIS); and the extra-coronary atherosclerotic plaque burden, comprising the aorta and supra-aortic trunks, iliofemoral arteries, and visceral arteries (extra-coronary SS)...
June 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29617001/personalized-statin-therapy-and-coronary-atherosclerotic-plaque-burden-in-asymptomatic-low-intermediate-risk-individuals
#20
Ranganath Muniyappa, Radwa A Noureldin, Khaled Z Abd-Elmoniem, Riham H El Khouli, Jatin Raj Matta, Ahmed Hamimi, Siri Ranganath, Colleen Hadigan, Lynnette K Nieman, Ahmed M Gharib
BACKGROUND: Current guidelines for the primary prevention of atherosclerotic cardiovascular disease are based on the estimation of a predicted 10-year cardiovascular disease risk and the average relative risk reduction estimates from statin trials. In the clinical setting, however, decision-making is better informed by the expected benefit for the individual patient, which is typically lacking. Consequently, a personalized statin benefit approach based on absolute risk reduction over 10 years (ARR10 benefit threshold ≥2...
March 26, 2018: Cardiorenal Medicine
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