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Predictive Ability Of More Than 3-day Pre-atrial Fibrillation Ablation Cardiac Computed Tomography In Detection Of Left Atrial Thrombus
Introduction: Several studies described the diagnostic accuracy of Cardiac Computed Tomography (CCT) with delayed phase in detection of LA/LAA thrombus. Pre-Atrial fibrillation ablation (AFA) CCT is primarily done for pulmonary vein mapping. CCT performed alone within 72 hours prior to AFA has been suggested to be an alternative to Transesophageal Echocardiography (TEE) to rule out LAA thrombus in the low-intermediate stroke risk patients.(1) Hounsfield Unit ratio (HU) of> 0.75 between left atrial appendage (LAA) and ascending aorta (AA) has been suggested as reliable indicator of absence of thrombus on CCT(2) However, pre...
Source: Journal of Cardiovascular Computed Tomography - July 1, 2023 Category: Radiology Authors: L. Shali, A. Villarosa, J. Taylor Source Type: research

Contribution Of Mitral Valve Atrioventricular Plane Displacement To The Stroke Volume In Patients With Severe Mitral Regurgitation
Introduction: Longitudinal shortening measured as atrioventricular plane displacement (AVPD) represents a piston-like movement of the base of the ventricles toward the apex during the cardiac cycle. Prior studies using echocardiography and cardiac magnetic resonance imaging demonstrated AVPD to account for a large part of the left ventricular (LV) stroke volume (SV) in athletes, healthy controls, and heart failure patients. We sought to validate the use of cardiac computed tomography (CCT) to measure the AVPD and subsequently explore the contribution of the AVPD towards overall LV SV in patients with functional and primary...
Source: Journal of Cardiovascular Computed Tomography - July 1, 2023 Category: Radiology Authors: J. Kassab, H. Layoun, J. El Dahdah, M. Chedid El Helou, S. Kapadia, S. Harb, R. Puri Source Type: research

Relationship Between Thoracic Aortic Calcification And Coronary Artery Calcium Measured On Chest CT Scans
Introduction: Cerebrovascular accidents (CVA) remain a leading cause of mortality and morbidity worldwide. Identifying appropriate risk markers may allow detection of patients at high risk for stroke who would benefit from early initiation of preventative measures. Utilizing atherosclerotic burden of multiple vascular beds may allow for improved cardiovascular risk assessment. Coronary artery calcium (CAC) is a well-established, excellent predictor of coronary heart disease, but its association with stroke is modest.
Source: Journal of Cardiovascular Computed Tomography - July 1, 2023 Category: Radiology Authors: A. Zeitjian, B. Noor, V. Manubolu, A. Kinninger, M. Budoff Source Type: research

Streamlined Carotid Artery Calcification Labeling For Cta Scans
Introduction: We require vast amounts of manually labeled calcifications to train advanced machine learning classifiers for carotid artery plaque detection and phenotyping high-risk calcifications for ischemic stroke patients. We developed CTOOL, a web-based software for streamlined calcium labeling with minimal user interaction.
Source: Journal of Cardiovascular Computed Tomography - July 1, 2023 Category: Radiology Authors: J. Kim, N. Arnett, J. Kotler, D. Shah, B. Cucchiara, J. Song, D. Haehn Source Type: research

Systemic arterial calcium burden in patients with chronic limb-threatening ischemia
5-year mortality of chronic limb-threatening ischemia (CLTI) is 50 –60% and coronary artery disease (CAD) is the main cause of death of CLTI patients, followed by stroke. The aim of this study is to quantify and qualify the calcium load in different arterial territories in patients with CLTI.
Source: Journal of Cardiovascular Computed Tomography - May 5, 2023 Category: Radiology Authors: L.C.D. Konijn, W.P.T.M. Mali, H. van Overhagen, R.A.P. Takx, H.T.C. Veger, P.A. de Jong Tags: Research paper Source Type: research

Prevalence And Clinical Implications Of Patent Foramen Ovale In The SCOT-HEART Trial
This study assesses the prevalence of PFO in the Scottish COmputed Tomography of the HEART (SCOT-HEART) trial and its clinical implications.
Source: Journal of Cardiovascular Computed Tomography - January 1, 2023 Category: Radiology Authors: M. Williams, S. Sanders, S. Williams, E. van Beek, E. Nicol, D. Newby Source Type: research

525 Should We Look For High-Risk Carotid Plaques In Patients With Coronary Artery Calcium?
Introduction: Coronary artery calcium scores (CACs) are being increasingly used for primary prevention of cardiovascular disease. CACs allow for personalized and precise information on the presence and quantity of coronary atherosclerosis. Atherosclerosis is however a systemic disease, and the increasing ubiquity of cardiac CT potentially allows the opportunity to look for high-risk carotid plaque in patients with CAC as a means of detecting patients also at a high-risk of stroke. We therefore studied an institutional sample of patients that underwent both CT for CAC and carotid MRI.
Source: Journal of Cardiovascular Computed Tomography - July 1, 2022 Category: Radiology Authors: N. Singh, A. Rai, A. Maharaj, D. Gladstone, S. Verma, A. Moody Source Type: research

426 Impact Of Visceral Abdominal Tissue On Coronary Artery Disease As Defined By Quantitative Computed Tomographic Angiography
This study aims to clarify the relationship between the presence and severity of VAT with the presence and severity of coronary artery plaque as defined by total plaque volume, calcified plaque volume, non-calcified plaque volume, and high risk low-density non-calcified plaque using quantitative coronary computed tomography atherosclerosis imaging (AI-QCT).
Source: Journal of Cardiovascular Computed Tomography - July 1, 2022 Category: Radiology Authors: D. Karlsberg, H. Steyer, R. Fisher, T. Crabtree, J. Min, J. Earls, J. Rumberger Source Type: research

The US Preventive Services Task Force, Aspirin, and Coronary Artery Computed Tomography Imaging
Aspirin (ASA) for the primary prevention of cardiovascular disease (CVD) has been the subject of considerable interest and debate, with varying estimates of CVD prevention/bleeding risk ratios, and attempts to identify the segment of the population for whom there may be net clinical benefit. The U.S. Preventive Services Task Force (USPSTF) recently released the following draft recommendation: “WASHINGTON, D.C. – October 12, 2021 – The U.S. Preventive Services Task Force (Task Force) today posted a draft recommendation statement on aspirin use to prevent heart disease and stroke, also known as cardiovascular disease (CVD).
Source: Journal of Cardiovascular Computed Tomography - January 23, 2022 Category: Radiology Authors: Harvey S. Hecht, Todd C. Villines Source Type: research

A case of pulmonary vein to left atrial appendage fistula after transcatheter left atrial appendage occlusion
A 75-year-old male with history of hemorrhagic stroke, persistent atrial fibrillation and a CHADSVASC score of 5 was referred to our facility for an elective transcatheter left atrial appendage occluder device (LAAO) implantation. A WATCHMAN FLX #24mm device was implanted under transesophageal echocardiographic (TEE) and fluoroscopic guidance. Approximately one hour after the procedure, the patient developed a large pericardial effusion with evidence of tamponade and an emergent pericardiocentesis was performed with no re accumulation on pre-discharge transthoracic echocardiogram.
Source: Journal of Cardiovascular Computed Tomography - November 10, 2021 Category: Radiology Authors: Bandar Alyami, Matthew K. Shotwell, Kesavan Sankaramangalam, Saikrishna Patibandla, Ramesh Daggubati, Yasmin S. Hamirani Source Type: research

Association Of Stroke With Pattern Of Aortic Leaflet And Left Ventricular Outflow Tract Calcifications
Introduction: Stroke is a feared complication of transcatheter aortic valve replacement (TAVR) used for treatment of severe aortic stenosis. The risk of stroke has been associated with leaflet calcification burden. We aimed to investigate whether a specific pattern of aortic leaflet and left ventricular outflow tract (LVOT) calcification is associated with stroke risk.
Source: Journal of Cardiovascular Computed Tomography - July 1, 2021 Category: Radiology Authors: D. Brito, M. Shotwell, P. Agrawal, S. Patibandla, M. Kadiyala, Y. Hamirani, R. Daggubati, B. Raybuck, A. Kawsara, I. Zeb Source Type: research

Computed Tomography Angiogram: Diagnosing Device Placement Failure
In patients with non-valvular atrial fibrillation (AF) and increased stroke risk, the left atrial appendage (LAA) is a primary source of thrombus [1]. Percutaneous left atrial appendage closure (LAAC), a minimally invasive procedure, is increasingly performed to reduce AF stroke risk [1]. For successful clinical outcomes, it is therefore imperative that the Watchman implant —one such LAA closure device—maintains long-term efficacy. The PROTECT-AF trial, for instance, reported peridevice leak in 32% of patients post-LAAC.
Source: Journal of Cardiovascular Computed Tomography - March 23, 2020 Category: Radiology Authors: Ilana Golub, Suvasini Lakshmanan, Francesca Calicchio, Matthew J. Budoff Tags: Case report Source Type: research

Aortic valve calcification as a risk factor for major complications and reduced survival after transcatheter replacement
Aortic valve calcification is supposed to be a possible cause of embolic stroke or subclinical valve thrombosis after transcatheter aortic valve replacement (TAVR). We aimed to assess the role of aortic valve calcification in the occurrence of in-hospital clinical complications and survival after TAVR.
Source: Journal of Cardiovascular Computed Tomography - December 6, 2019 Category: Radiology Authors: Francesco Pollari, Wolfgang Hitzl, Ferdinand Vogt, Michela Cuomo, Johannes Schwab, Claudius S öhn, Jurij M. Kalisnik, Christian Langhammer, Thomas Bertsch, Theodor Fischlein, Steffen Pfeiffer Source Type: research

Coronary venous anatomy and anomalies
Coronary venous anatomy can be divided into the greater cardiac venous system and the lesser cardiac venous system. With protocol optimization, including appropriate contrast bolus timing, coronary veins can be depicted with excellent detail on CT. Knowledge of variant coronary venous anatomy can sometimes play a role in pre-procedural planning. Analysis of the coronary venous anatomy on CT can detect coronary venous anomalies that cause right to left shunts with risk of stroke, left to right shunts, and arrhythmias.
Source: Journal of Cardiovascular Computed Tomography - August 6, 2019 Category: Radiology Authors: Arlene Sirajuddin, Marcus Y. Chen, Charles S. White, Andrew E. Arai Tags: Review article Source Type: research

Using CT left atrial appendage imaging to identify patients at higher risk of stroke
More than the last 5 –10 years, the left atrial appendage (LAA) has become an increasingly important anatomic site for cardiologists, especially in the prevention and management of stroke.1 Once felt to be a relatively benign entity, its role as a nidus for thrombus (especially in those with atrial fibrillation (AF)) has long been recognised, but with the advent of LAA exclusion devices, which may be internal (such as Watchman, Wavecrest and Amplatz devices), or external (such as the Lariat laso or Atriclip), the need to accurately assess the morphology of left atrial appendage has become increasingly important, both in ...
Source: Journal of Cardiovascular Computed Tomography - May 24, 2019 Category: Radiology Authors: E. Nicol Tags: Editorial Source Type: research

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