SPECT scans show areas of your heart that have low blood flow at rest or during exercise. This information helps your doctor find out: 1. If you have coronary artery disease 2. If you’ve had a heart attack and areas of scar tissue exist. 3. How well bypass surgery or other cardiac procedures are working 4. If you … See more A SPECT scan of the heart is a noninvasive nuclear imaging test. It uses radioactive tracers that are injected into the blood to produce pictures of your heart. Doctors use SPECT to diagnose coronary artery disease and find out if … See more A radioactive tracer is injected into your bloodstream. Inside your body, the tracer produces a type of energy called gamma rays. A gamma … See more Cardiac SPECT is safe for most people. The amount of radiation is small, and your body will get rid of it through your kidneys in about 24 to 72 hours. If you’re pregnant or think you might be pregnant, or if you’re a nursing mother, tell … See more WebJan 7, 2024 · A nuclear stress test is an imaging test that shows how blood goes to the heart at rest and during exercise. It uses a small amount of radioactive material, called a tracer or radiotracer. The substance is given …
Identifying the heterogeneity of COPD by V/P SPECT: a new tool …
WebMaterials and methods. Study design and patients. This was a single-center, observational, retrospective, and longitudinal study. Patients were included according to the following criteria: age ≥18 years, normal SPECT-MPI, and availability of gated study for LVEF and volume analysis. WebMay 1, 2024 · Illustration on the spectfheart dataset of the negative impact of classic metric learning algorithms when facing an increasing imbalance in the dataset. On the left, as the proportion of minority examples decreases, the metric learning algorithms tend to classify all the examples as the majority class, with an accuracy close to 100%. ... marvin sapp he is a keeper of my soul
EvoImputer: An evolutionary approach for Missing Data
WebMemórias Morfológicas Autoassociativas Aplicadas em Problemas WebJun 1, 2016 · The spectral embedded clustering model (SEC) proposed in [ 12] can be considered as the special case of the general framework. (3) We prove that the spectral nonlinearly embedded clustering model based on ELM (ESEC) is an approximation of the kernel-based spectral nonlinearly embedded clustering (KSEC) method under some … WebFrancisco Herrera Abstract—Cross-validation is a very commonly employed technique used to evaluate classifier performance. However, it can potentially introduce dataset shift, a harmful factor that is often not taken into account and can result in … hunting outfitters washington state