نتایج جستجو برای: noninvasive evaluation
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Right heart and pulmonary circulation disorders are generally caused by right ventricle (RV) pressure overload, volume cardiomyopathy, they associated with distinct clinical courses therapeutic approaches, although often may coexist. Cardiac magnetic resonance (CMR) provides a noninvasive accurate reproducible multiplanar anatomic functional assessment, tissue characterization, blood flow evalu...
PURPOSE This study was to compare noninvasive measurement of cardiac output (CO) using a novel Doppler technique with invasive CO measurements in the postcardiac surgical intensive care unit. DESCRIPTION Thirty-six patients (67.2 +/- 10 years, New York Heart Association functional class 3.1 +/- 0.3) undergoing coronary revascularization were prospectively examined postoperatively. One hundred...
Venography is the current standard for the diagnosis of deep vein thrombosis (DVT). Noninvasive tests have differing sensitivity and specificity, are technically demanding, and may be subject to variability in interpretation. Light reflection rheography (LRR) is a noninvasive method utilizing light-emitting diodes and a sensor to measure light reflected from the skin surface. The intensity of r...
Exercise testing and electron beam computed tomography in the evaluation of coronary artery disease.
OBJECTIVES This study compared coronary artery calcium (CC) as detected by electron beam computed tomography (EBCT) with conventional stress testing in the evaluation of patients with symptoms suggestive of coronary artery disease (CAD). BACKGROUND Exercise electrocardiogram treadmill stress testing (treadmill-ECG) is limited by its requirement of a normal resting ECG and the ability of the p...
In the management of Acute Heart Failure(AHF) patients ,current guidelines suggest to make a prompt clinical assessments that include patient’s congestion and perfusion status evaluation, in order start appropriate treatments. Unfortunately ,so far, an accurate evaluation haemodynamic fluid AHF is only possible using invasive methods ;conseguently there unmeet need for noninvasive technologies ...
T he evaluation of infective endocarditis (IE), a complex and diagnostically difficult disease, has benefited dramatically from the developments in noninvasive cardiology, particularly in echocardiography. In the preantibiotic era, the disease progressed inexorably until death, with the diagnosis often confirmed at autopsy. With the development ofmodern antibiotic therapy and cardiothoracic sur...
Portal hypertension (PHT) is a key event in the evolution of different chronic liver diseases and leads to the morbidity and mortality of patients. The traditional reliable PHT evaluation method is a hepatic venous pressure gradient (HVPG) measurement, which is invasive and not always available or acceptable to patients. The HVPG measurement is relatively expensive and depends on the experience...
In 2010, the Asian Society of Cardiovascular Imaging (ASCI) provided recommendations for cardiac CT and MRI, and this document reflects an update of the 2010 ASCI appropriate use criteria (AUC). In 2016, the ASCI formed a new working group for revision of AUC for noninvasive cardiac imaging. A major change that we made in this document is the rating of various noninvasive tests (exercise electr...
percutaneous coronary angioplasty (ptca) of a coronary stenosis without documented ischemia at noninvasive stress testing is often performed, but its benefit is unproven. coronary pressure– derived fractional flow reserve (ffr) is an invasive index of stenosis severity defined as the ratio of maximal blood pressure in a stenotic vessel to the normal maximal pressure in the same vessel. ffr is a...
background: free fetal dna (ffd) in maternal plasma/serum has increasingly become the source of fetal material for diagnostic purposes in recent years. this source of fetal material can be used for sex determination. rh typing paternally inherited sequences and compound heterozygosity. reports on the lack of consistent pcr amplification of y-chromosome sequences of ffd in maternal plasma/serum ...
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