Articles tagged with Angiography
The study reveals marked variation in radiation dose to patients from diagnostic testing, particularly affecting low- and middle-income countries. Standardized protocols and updated equipment are urgently needed to reduce global radiation exposure and improve the quality of CAD diagnosis.
A landmark study analyzed health data from over 600,000 patients across 10 countries to assess patient risk for non-ST-elevation acute coronary syndrome (NSTE-ACS). The AI-powered model GRACE 3.0 predicts risk more accurately and guides personalized treatment decisions.
The Society for Cardiovascular Angiography and Interventions (SCAI) has published evidence-based clinical practice guidelines for the management of chronic venous disease. The guidelines provide patient-centered recommendations on therapeutic options, including compression therapy, wound care, and minimally invasive procedures. Key fin...
A nationwide study found that ambulatory surgery centers (ASCs) are treating 15% more patients from socially vulnerable areas for cardiac interventions, despite lower adverse event rates. The study also showed that ASC patients had a higher rate of repeat PCI compared to hospital outpatient department patients.
Using intravascular imaging (IVI) to guide stent implantation reduces death, stent thrombosis, and repeat procedures in severely calcified lesions. IVI outperforms conventional angiography in improving patient outcomes.
The Society for Cardiovascular Angiography & Interventions (SCAI) has published a groundbreaking educational resource, the first comprehensive procedural guide to T-TEER. The eBook provides step-by-step guidance on patient selection criteria, imaging protocols, and best practices for achieving optimal patient outcomes.
This special issue explores AI's applications across various subspecialties, including coronary interventions, structural heart disease, and cardiovascular imaging. It highlights the importance of responsible AI integration and addressing bias in decision support systems.
A survey by SCAI highlights alarming trends in radiation exposure and orthopedic injuries for interventional cardiologists and staff. The study proposes concrete steps to mitigate these hazards, including the adoption of new shielding technologies and expanding formal radiation safety education.
The Society for Cardiovascular Angiography and Interventions has published an expert consensus statement recommending two preferred alternative access techniques for transaortic valve replacement (TAVR), including transcarotid and transcaval access. The guidelines aim to improve outcomes for patients with inadequate femoral vascular ac...
A study found that intravenous protamine sulfate significantly shortens postoperative compression time after coronary angiography via distal transradial access. The treatment showed good safety performance with no significant difference in major hemorrhage or hematoma between groups.
Researchers developed a novel noninvasive choroidal angiography method using deep learning, enabling layer-wise visualization and evaluation of choroidal vessels. The approach employs an advanced segmentation model to handle varying quality of OCT B-scans, offering a promising tool for clinical applications.
Researchers used fluorescein angiography to visualize neural blood flow in rats and rabbits with chronic nerve compression neuropathy, correlating findings with electrodiagnostic testing. The study showed promising results for the method's potential to improve diagnosis and treatment outcomes in carpal tunnel surgery.
A new study reveals that traumatic intracranial aneurysms are more common and associated with intracerebral hematomas after civilian gunshot wounds, challenging conventional wisdom. Spontaneous resolution occurs in approximately 40% of patients.
A meta-analysis of seven randomized trials found that transcatheter aortic valve replacement (TAVR) has comparable long-term safety and efficacy to surgical aortic valve replacement (SAVR). However, TAVR was associated with an increased likelihood of needing a pacemaker and moderate-to-severe paravalvular leaks.
A new study found that a non-invasive imaging test can help identify patients with coronary artery blockage or narrowing who need a revascularization procedure. The test, called CT-FFR, uses CTA images and AI algorithms to model coronary blood flow, reducing the need for invasive procedures.
A new approach to heart bypass surgery has been successfully tested, using non-invasive cardiac-CT scan images and AI-powered blood flow analysis. The trial showed a 99.1% feasibility rate, indicating that the procedure is safe and effective without invasive diagnostic catheterisation.
A five-day course of inorganic nitrate significantly reduces contrast-induced nephropathy rates, improves three-month renal function, and lowers one-year major adverse cardiac events. The trial also shows improved kidney outcomes at three months compared to placebo.
A new study published in Radiology found that coronary artery calcium scoring can identify patients with a low risk of heart attacks or strokes. Patients with a zero coronary artery calcium score showed very low risk of major adverse cardiovascular events, suggesting they may not require invasive coronary angiography.
A Swedish study of over 9,000 men found that those who were physically fit in adolescence had a lower risk of atherosclerosis nearly 40 years later. The researchers used advanced imaging technology to examine plaques in the coronary arteries and found associations with both good cardiorespiratory fitness and muscle strength in youth.
Using intravascular imaging to guide stent implantation significantly improves survival and reduces adverse cardiovascular events compared to angiography-guided PCI. The study found a 25% reduction in all-cause death, 45% reduction in cardiac death, and improved outcomes for patients with coronary artery disease.
A new study published in Radiology found that ultrahigh-spatial-resolution photon-counting detector CT improved the assessment of coronary artery disease, allowing for reclassification to a lower disease category in 54% of patients. This technology has the potential to improve patient management and reduce unnecessary interventions.
Experts recommend increasing the use of intravascular ultrasound (IVUS) in lower extremity revascularization procedures to optimize outcomes and reduce complications. The technique provides detailed information about vessel walls, plaque composition, and blood flow characteristics, enabling more accurate diagnosis and treatment planning.
Researchers discovered a non-invasive eye exam that can detect early signs of cognitive decline and cerebral small vessel disease, a major contributor to vascular dementia. The study found connections between altered retinal blood flow and changes in brain structure associated with the condition.
A new study from UTHealth Houston finds that AI-powered algorithm can improve detection rates of unruptured cerebral aneurysms. The study used a machine learning algorithm to analyze CT angiograms and identified 36 true aneurysms, with 24 previously not referred for follow-up.
A new CT test can identify individuals with stable angina at a reduced risk of three-year adverse outcomes despite having high coronary artery calcium scores. The test uses AI algorithms and computational fluid dynamics to simulate blood flow through the coronary arteries.
A new ultra-high-resolution CT technology has been developed to detect coronary artery disease in high-risk patients, providing a potentially significant benefit for people previously ineligible for noninvasive screening. The technology delivers excellent image quality and accurate diagnosis with high sensitivity and specificity.
A new study published in JMIR Cardio reveals the potential of AI-QCA in analyzing coronary angiography, providing accurate measurements of coronary stenotic lesions similar to IVUS. This technology has the potential to improve patient outcomes and support clinical decision-making.
A supervised hospital walking program has been shown to reduce nursing facility admissions for older adults by lowering the proportion of patients discharged to skilled nursing facilities from 13% to 8%. However, low participation rates and limited impact on length of stay or inpatient falls were noted.
Survivors of firearm injury experience chronic PTSD symptoms and poor health-related quality of life, emphasizing the need for comprehensive care. Screening for chronic kidney disease could be cost-effective for US adults starting at age 35.
Dr. George Dangas has been appointed as the new President of SCAI, a non-profit professional association promoting excellence in interventional cardiovascular medicine. He is an authoritative voice on nonsurgical cardiovascular and valve interventions, and will fulfill various responsibilities including acting as spokesperson for SCAI.
The TWILIGHT trial found ticagrelor monotherapy after PCI to have a similar risk of repeat revascularization and MACCE compared to dual antiplatelet therapy. Ticagrelor monotherapy was also associated with lower NACE and clinically-driven revascularization risk.
The Society for Cardiovascular Angiography and Interventions (SCAI) has awarded Early Career Research Grants to two junior interventional cardiologists, Nadia Sutton and Eric Secemsky. Their projects focus on high-priority topics in cardiovascular disease, including coronary microvascular dysfunction and peripheral vascular interventions.
A new analysis of COVID-19 patients with heart attacks reveals increased clotting in coronary arteries before and after treatment. High TGB was observed in 74% of patients pre-intervention and 29% post intervention.
The next-generation Evolut FX TAVR system shows improved deliverability, tracking, and deployment compared to its predecessor. This is particularly beneficial for patients with difficult anatomies, where the new device's predictable deployment can improve coronary access, blood flow, and valve performance.
The CLIPPER cohort of over 1 million patients found that 1 in 6 died within the first year and 50% survived at five years after diagnosis. The study aims to develop process measures for high-quality care and improve survival rates.
A novel low-profile pVAD system demonstrated 100% procedural success and no device-related adverse events in a first-in-human trial. The device supports cardiovascular hemodynamics with minimal hemolysis and low risk of vascular complications, aiming to minimize morbidity and improve patient outcomes
A new virtual coronary roadmap tool has been shown to reduce the volume of iodinated contrast needed during percutaneous coronary interventions (PCI). The Dynamic Coronary Roadmap (DCR) effectively decreases contrast usage by 28.8%, potentially lowering the risk of contrast-induced nephropathy.
Researchers developed an AI algorithm called CathEF to estimate left ventricular ejection fraction (LVEF) from standard angiogram videos, providing real-time information for clinical decision-making. The tool was trained on a large dataset and demonstrated strong correlations with echocardiographic LVEF measurements.
A new onsite deep-learning based FFR-CT algorithm demonstrates excellent diagnostic performance, with high interobserver and intraobserver reproducibility. The algorithm showed AUC of 0.975, sensitivity of 93.5%, and specificity of 97.7% for hemodynamically significant stenosis.
Researchers have developed a non-invasive technique using laser speckle imaging to visualize microvasculature in donor hearts and detect abnormal blood flow. The method enables precise visualization of blood circulation, potentially identifying hearts suitable for transplantation.
A new AI-powered worklist reprioritization tool has been shown to significantly reduce both report turnaround time and wait time for pulmonary embolus-positive CT pulmonary angiography examinations. The study found a reduction of 47.6 minutes in report turnaround time and 21.4 minutes in wait time, with no significant difference in rea...
A cohort study of over 9,000 persons found that asymptomatic middle-aged individuals with subclinical coronary atherosclerosis are at an 8-fold increased risk for myocardial infarction. The study highlights the importance of identifying and addressing obstructive coronary artery disease in patients without known cardiovascular disease.
Using a dual-source CT scanner eliminates the need for beta-blockers and decreases nondiagnostic examinations, resulting in shorter CT completion times. The study found no difference in ED length of stay but demonstrated significant benefits in reducing nondiagnostic examinations.
A recent study published in Radiology uses radiomics to analyze coronary CT angiography images and identify vulnerable plaques associated with an increased risk of major adverse cardiac events. The model enabled the detection of these plaques, providing a more accurate approach than conventional anatomical parameters.
A new study published in Radiology: Cardiothoracic Imaging shows that photon-counting detector CT can acquire high-quality images at lower contrast media volume than conventional CT scanners. The technology reduces the amount of contrast needed for CT angiography, improving image quality and reducing environmental impact.
TCT 2022 will feature late-breaking clinical science presenting the safety and effectiveness of minimally invasive techniques, pharmaceuticals, technologies, and devices for treating or preventing cardiovascular disease. The event takes place September 16-19 in Boston at the Boston Convention and Exhibition Center.
A retrospective study found an AI algorithm for detecting incidental pulmonary embolus (iPE) on contrast-enhanced chest CT examinations had high NPV and moderate PPV, even identifying iPEs missed by radiologists. The tool's diagnostic performance did not show significant variation across study subgroups.
The global contrast media shortage has affected millions of diagnostic imaging examinations and requires immediate attention. Researchers propose several methods to conserve contrast media, including weight-based dosing and adjusting CT settings.
A new analysis of the PROGRESS-CTO registry shows a significant increase in successful CTO PCI procedures, with higher efficiency and lower risk of complications. The findings demonstrate improved operator training and real-world experience leading to better patient outcomes.
The study found that patients treated with paclitaxel drug-coated devices (DCDs) had a similar survival rate as those treated with non-drug coated devices (NDCDs), regardless of the patient's mortality risk and device type. The analysis included over 168,000 patients treated from 2015 to 2018.
A real-world study found that clopidogrel monotherapy was associated with reduced risk of net adverse clinical events and major cardiac events, compared to aspirin monotherapy. Clopidogrel also showed a lower incidence rate of clinically relevant bleeding events.
The Disrupt PAD III trial found intravascular lithotripsy (IVL) to be effective in treating severely calcified peripheral artery lesions, with high patency rates compared to percutaneous transluminal angioplasty (PTA). IVL also showed reduced severe complications and need for additional interventions.
The DIPRA study found no significant difference in hand function between distal radial artery access and conventional proximal radial artery access. Radial artery occlusion occurred more frequently with PRA, but the risk was negligible.
A one-year study validated the Harmony transcatheter pulmonary valve (TPV) system's safety and efficacy in treating congenital heart disease patients with severe pulmonary regurgitation. The study showed favorable clinical and hemodynamic outcomes, including low mortality rates and minimal interventions.
A retrospective analysis reveals significantly higher mortality rates for low-income residents hospitalized with STEMI compared to higher-income residents. The findings highlight the need to examine social factors that impact healthcare outcomes for the most vulnerable.
A nationwide study analyzing rates of percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI) found a nearly 30% decline following the COVID-19 pandemic. STEMI cases have yet to recover to pre-pandemic levels, suggesting continued hesitation among patients to seek hospital care despite having a heart att...
A prospective study found that the 3-T Dixon gradient-recalled echo (GRE) sequence performed better than the current standard of 1.5-T SSFP for unenhanced coronary MRA, particularly in distal and branch segments. The technique demonstrated higher image quality, visible segments, sensitivity, and specificity for significant stenoses.
A new PET/CT artificial intelligence model has been developed to predict the risk of future heart attacks with improved accuracy. By combining information from PET and CT angiography, the model provides a more robust prediction of heart attack risk than clinical data alone.
A study published in The Lancet found that using physiologic measurement quantitative flow ratio (QFR) for lesion selection during percutaneous coronary intervention (PCI) leads to better clinical outcomes compared to standard angiography-guided strategies. This is due to fewer procedural complications and superior long-term results.
A new study published in The New England Journal of Medicine found that percutaneous coronary intervention (PCI) guided by fractional flow reserve (FFR) did not meet noninferiority for one-year outcomes compared to bypass surgery. However, FFR-guided PCI performed favorably in patients with low SYNTAX scores and less complex disease.