Sep 11 2012 Coronary stenting became a mainstay in coronary revascularization therapy. Despite tremendous advances in therapy in stent restenosis ISR remains a key problem after coronary stenting. Coronary CT angiography evolved as a valuable tool in the diagnostic workup of patients after coronary revascularization therapy. It has a negative predictive value
Multislice Computed Tomography Coronary Angiography to Replace Invasive Coronary Angiography. The sensitivity and negative predictive value of 64 slice CT CA is excellent allowing reliable ruling out of significant coronary stenosis in the case of a negative CT scan see Tables 1–3 . However the specificity and the rather high number of
resonance imaging MRI computed tomography CT coronary angiography and Doppler ultrasound derived flow reserve measurements.3 § While the comparative effectiveness of CT angiography for the diagnosis of CAD has been unclear in the past our search identified two AHRQ systematic reviews one archived 2012 review4 and one 2016
1 day ago To assess the associations between simple measurements of left atrial LA size and image quality of coronary computed tomography angiography CCTA . Four hundred and nineteen patients who underwent CCTA were retrospectively examined. Image quality was measured by coronary artery attenuation and
Dec 14 2016 While nuclear positron emission tomography PET SPECT cardiac magnetic resonance imaging and stress echocardiography are well established modality with excellent diagnostic accuracy coronary computed tomographic angiography CCTA has emerged in the past couple of decades and is rapidly growing as noninvasive testing modality for the
Most advances in cardiac computed tomography CT particularly coronary CT angiography CTA have come from the development of protocols consistent with rapid incremental improvements in CT technology. The evolution of cardiac CT from early technology has been paralleled with evolving protocols that have extended cardiac CT beyond the imaging of
Aug 07 2019 Computed tomography angiography CTA is an exciting technology that allows noninvasive assessment of the vasculature. Over the past few decades the use of CTA has grown tremendously due to the introduction of multidetector CT MDCT which enables acquisition of isotropic volumetric data.
Nov 23 2016 Overdiagnosis can result in financial psychological and physical harm to patients. This commentary discusses how a communication gap left a patient uninformed about the risks associated with an invasive cardiac procedure that was later found to be unnecessary.
Dec 26 2013 The prevalence of heart failure HF is rising in industrialized and developing countries. Though invasive coronary angiography ICA remains the gold standard for anatomical assessment of coronary artery disease in HF patients alternatives are being sought. Computed tomographic coronary angiography CTA has emerged as an accurate non
Aug 25 2018 Coronary computed tomographic angiography CTA is increasingly being used to assess patients with stable chest pain because it has high sensitivity and specificity for the detection of coronary
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Invasive fractional flow reserve FFR is recommended to guide stent deployment. We previously introduced a non invasive FFR calculation FFRB based on computed tomography coronary angiography CTCA with reduced order computational fluid dynamics CFD and resistance boundary conditions. Current study aimed to assess the feasibility and accuracy of FFRB for
Feb 13 2014 Coronary computed tomography angiography an overview of clinical applications. Interventional Cardiology Vol. 5 No. 1. Use of coronary CT angiography in the diagnosis of patients with suspected coronary artery disease findings and clinical indications. Journal of Geriatric Cardiology Vol. 9 No. 2.
Over the past decade coronary computed tomographic angiography CCTA has broadened the diagnostic ability of physicians by providing a means to non invasively image coronary atherosclerosis. It provides a robust and accurate method to assess atherosclerotic plaque burden distribution morphology and associated luminal stenosis.
Aug 09 2020 A total of 140 prospective OLT candidates without known CAD underwent coronary artery calcium CAC scans with n = 77 or without CCTA and coronary computed tomography angiography–derived fractional flow reserve FFR CT n = 57 using a dual source computed tomography CT and were followed for 2.6 ± 1.4 years. Coronary plaque was
Dec 26 2015 FIGURE 8 2 Whole organ coverage computed tomography. Current 320 slice scanners have a detector width of 16 cm in z dimension which allows acquisition of a coronary computed tomography angiography without the need to move the table. The x ray tube is turned on only for the duration of one heartbeat.
Coronary computed tomography angiography CCTA is a comprehensive non invasive and cost effective imaging assessment approach which can provide the ability to identify the characteristics and morphology of high risk atherosclerotic plaques associated with acute coronary syndrome ACS . The development of CCTA and latest advances in emerging
Computed tomographic angiography CTA is a general phrase used to describe noninvasive imaging of the arteries with various types of computed tomography CT machines such as multislice CT MSCT multidetector CT MDCT and dual source CT DSCT .
A computed tomography angiogram CT angiogram is a test that uses X rays to provide detailed pictures of the heart and the blood vessels that go to the heart lung brain kidneys head neck legs and arms. A CT angiogram can show narrowed or blocked areas of a blood vessel. The test can also show whether there is a bulge aneurysm or a
Computed tomography coronary angiography CTCA is a robust and reliable non invasive alternative imaging modality to invasive coronary angiography which is the reference standard in evaluating the degree of coronary artery stenosis. CTCA has high negative predictive value and can confidently exclu
Multi Slice Computed Tomography MSCT coronary angiography is emerging as a non invasive clinically reliable diagnostic tool to detect significant luminal diameter > 50 coronary stenosis. The diagnostic accuracy of MSCT is high but at this point in time MSCT coronary angiography should be regarded mainly as a research tool and in selected
CT coronary angiography has a high degree of accuracy in the assessment of coronary artery disease compared with invasive selective CA however its accuracy inThe feasibility and accuracy of 16‐slice computed tomography in the evaluation of coronary stent patency is not well investigated. Background This study aimed to evaluate the feasibility and accuracy of
Purpose of the Test Cardiac computed tomography angiography or CTA is a noninvasive test that uses special X rays to focus on the coronary arteries.It allows the physician to see if you have blockages in the heart arteries. As part of the test you will be given an iodine based contrast material or dye that will be injected into a vein in the arm to see the vessels in your heart.
Noninvasive Coronary Angiography Using Computed Tomography Ready to Kick It Up Another Notch John A. Rumberger PhD MD D irect visualization of the epicardial coronary arteries is necessary to confirm the presence and/or focal severity of coronary luminal disease. For nearly 50 years 1 invasive coronary arteriography has been the refer
Coronary Angiography. One of the most unique applications of CCT is coronary angiography. Several single center studies investigated the accuracy of 16 channel CCT coronary angiography for the detection of coronary artery stenosis in patients with known or suggested coronary artery disease and referred for invasive coronary angiography 10–20
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