Articles tagged with Angiography
A recent study found that cardiac CT scans are useful for excluding coronary disease in selected patients, but may be limited by a high number of nondiagnostic cases. The test can identify significant stenosis with high sensitivity and negative predictive value, suggesting its potential as an alternative to conventional angiography.
Researchers explore new GI technologies, including endoscopic ultrasound and fine needle intervention, to visualize the heart and coronary arteries with improved accuracy. The studies show promising results, suggesting that these techniques may be safe alternatives to traditional methods.
Researchers are testing innovative techniques to detect vulnerable coronary plaques, which cause most heart attacks. Non-invasive methods like multislice computed tomography show promise in generating colorful pictures of the coronary arteries.
A study of over 16,000 patients found that early statin therapy reduces the risk of death by 22% and cardiovascular death by 25%. The treatment also shows promise in preventing another episode of unstable angina and reducing the need for coronary bypass surgery.
A recent study suggests that women with acute coronary syndromes should not be denied access to cardiac catheterization laboratories, particularly high-risk patients. The research analyzed data from over 1,000 women and found that outcomes for women were similar to those of men in terms of mortality and heart attack rates.
A study found that training on a virtual 'patient' improved carotid angiography skills in cardiologists, with reduced catheter errors and faster procedure times. The use of simulators provides an objective measure of performance, allowing for the tracking of individual trainees' progress and evaluation of their competence.
The study found MDCT angiography to be a reliable tool for evaluating the coronary veins prior to pacemaker lead placement and other procedures. It improves diagnosis quality by providing better planning before surgery, making it a valuable alternative to conventional angiography.
The new guidelines provide detailed information on antibacterial soap selection, antibiotic use, protective gear, and air circulation in the cath lab. They emphasize patient and staff protection to prevent devastating infections after interventional procedures.
Research shows women with acute coronary syndromes are under-treated, leading to more ongoing heart problems. The study analyzed data from the CURE trial and found that women were 35% less likely to undergo invasive procedures than men.
A study found that drug-eluting stents significantly reduce the risk of restenosis in vein grafts, cutting heart attack rates by fourfold compared to bare metal stents. The treatment also decreases repeat procedures and death rates, suggesting a long-term advantage for patients with worn and diseased vein grafts.
A study has found that EBCT scans can detect congenital abnormalities, including coronary artery anomalies, more accurately than traditional catheter angiography. This is especially important as it helps identify patients at risk of a heart attack or sudden death.
A novel star-shaped metal clip, StarClose, seals arterial punctures in humans, stopping bleeding in just 37 seconds. The device's success rate is 92%, outpacing traditional closure methods which require patient rest for four hours.
Researchers demonstrate that reducing trauma to the artery and using anti-clotting drugs are key to successful stent placement. The study's findings suggest an 8.5% true clinical restenosis rate after two years.
The ELISA II trial found that triple antiplatelet (AP) therapy reduced enzymatic infarct size and improved epicardial coronary artery flow in patients with non-ST segment elevation acute coronary syndrome (NSTE ACS). Triple AP therapy also showed a trend towards better event-free survival at 96 hours and 30 days after randomization.
A study of Euro Heart Survey data reveals significant gender disparities in the diagnosis, treatment, and outcome of patients with heart failure and coronary artery disease. Women tend to be older, have more comorbidities, and are less likely to receive certain treatments.
A study found persistent racial and gender disparities in heart attack care, with black women having lower rates of reperfusion therapy and higher in-hospital mortality rates compared to white men. The differences were not explained by patient characteristics, raising concerns about under-treatment.
MRI cardiac catheterization provides a detailed three-dimensional picture of the heart, enabling interventional cardiologists to see blood vessels inside and out. This technology is already being used to diagnose congenital heart disease in children and has the potential to replace traditional diagnostic catheterization procedures.
A study found that EBCT outperforms traditional angiography in identifying coronary artery abnormalities, particularly those that pose a risk of blockage. The imaging modality's accuracy was confirmed through joint review by cardiologists and radiologists.
A new study published in Catheterization and Cardiovascular Interventions found that drug-eluting stents are a safe treatment for heart attack patients, provoking no increase in complications. The stents prevented arterial renarrowing by 90% and reduced the need for repeat procedures.
Multislice computed tomography (MSCT) scanning shows high accuracy in detecting significant lesions and coronary calcifications compared to invasive coronary angiography. MSCT may reduce the likelihood of clinically important CAD in patients with suspected disease, but its use requires proper patient selection and adequate training.
The study found that MDCT pulmonary angiograms increased from 21.9 to 42.5 per month, while ventilation-perfusion scans dropped from 5.7 to 3.6, indicating a shift towards diagnosing pulmonary embolism by CT. This change is attributed to advancements in MDCT scanners, which can quickly image the pulmonary vasculature with high resolution.
A study published in the American Journal of Roentgenology found that MDCT is highly accurate in diagnosing coronary artery disease in patients with little to moderate calcium buildup. However, its accuracy drops significantly in cases with severe calcification, emphasizing the need for conventional angiography in such cases.
Researchers analyzed 29,508 patients who underwent contrast-enhanced CT with iopromide. The study found that 29,297 experienced no adverse effects, while only four were severe out of 211 reported cases. This large-scale study provides insight into the safety of iopromide in a diverse patient population.
A new study suggests that MDCT angiography can determine which patients with narrowed carotid arteries are at greater risk of having a stroke. Patients with calcified plaques were found to be 21 times less likely to have had symptoms than those with noncalcified plaques.
The ICTUS study found that early invasive and selective invasive strategies are equivalent treatment options for patients with nSTE-ACS and elevated cardiac troponin. The study showed higher myocardial infarction rates but fewer rehospitalizations in the early invasive group.
The study shows that 3D MDCT angiography can quickly diagnose vascular injuries and fractures, reducing the need for X-ray examinations. It also helps identify musculoskeletal masses and their associated vasculature, facilitating preoperative planning and minimizing hemorrhagic complications.
A study published in American Journal of Roentgenology found MDCT angiography successful in pediatric patients with an 83% technical success rate. The procedure's advantages include speed, lack of sedation, and low contrast volume, making it a safer alternative to conventional angiography.
Researchers found that blockages in smaller arteries, which can't be spotted on standard tests, might be causing chest pain in women. Women who underwent a new imaging scan showed abnormal levels of phosphates, indicating their heart tissue wasn't getting enough blood.
A new study found that D-dimer tests can eliminate the need for CT angiograms of the lungs in 60% of cases, where the result is negative. The test measures the amount of D-dimer in blood, a breakdown product of fibrin, which forms blood clots.
A study of 1,325 patients revealed that CT pulmonary angiograms expose female breasts to at least 2.0 rads per breast, equivalent to 10-25 mammograms or 100-400 chest radiographs. Researchers recommend reducing radiation exposure by selecting suitable patients, using alternative imaging methods, and manipulating scan parameters.
MDCT angiography successfully diagnosed suspected arterial injuries in 48 of 49 patients, with only one patient requiring a follow-up angiogram. The study suggests that MDCT angiography can replace traditional angiography as an initial diagnostic tool.
MDCT angiography has been shown to accurately demonstrate filling defects in the superior mesenteric artery and its branches. The study found that MDCT angiography enabled correct diagnosis of acute mesenteric ischemia in 10 out of 41 patients, providing alternative diagnoses for 19 remaining cases.
Researchers found that calcified plaques outside the cranium show symptoms less often and are more stable than noncalcified plaques. This finding can help determine the best treatment approach for patients with asymptomatic carotid artery stenosis.
A new index, CTPE Index, quantifies clot size and predicts patient outcome in pulmonary embolism. Patients with high clot burdens are at increased risk of death and may require aggressive treatment.
A Canadian study analyzing 47,000 Ontario patients reveals a strong correlation between wealth and access to angiography procedures. The findings suggest that disparities in healthcare are unlikely to be resolved by increasing the overall availability of these procedures.
African-American patients are 71% as likely as white patients to receive a referral for coronary angiography, but only 63% actually undergo the procedure. Private insurance and patient preference may play roles in the disparity.
A study of 297 patients found a significant prevalence of renal artery narrowing among those with hypertension. The researchers recommend considering abdominal aortography to better define cardiovascular risk and monitor kidney function.
A clinical trial of 109 patients found that coronary magnetic resonance angiography (MRA) accurately diagnosed coronary artery disease with an accuracy rate of 72% and specificity of 87%. The non-invasive test eliminates radiation exposure, infection risk, and hospital stay time, making it a promising diagnostic tool.
Patients in managed-care plans were less likely to receive coronary angiography following a heart attack compared to those with traditional fee-for-service coverage. This procedure is highly recommended for improving treatment options and reducing the risk of a second heart attack.
A new study published in The Journal of Plastic and Reconstructive Surgery found that non-invasive magnetic resonance angiography (MRA) and magnetic resonance imaging (MRI) can effectively manage vascular malformations. The imaging techniques showed the growths' connections to surrounding tissues, allowing for better treatment planning.