Improvement in PET myocardial perfusion image quality and quantification with flurpiridaz F 18.
Summary of "Improvement in PET myocardial perfusion image quality and quantification with flurpiridaz F 18."
Rubidium-82 ((82)Rb), the currently commercially available radiotracer for positron emission tomography (PET) myocardial perfusion imaging (MPI), has led to wide availability of PET-MPI for stress-rest imaging. Compared to SPECT MPI, myocardial perfusion PET images have higher spatial and contrast resolution, are less affected by radiotracer scatter, benefit from more precise attenuation correction, and allow dynamic first pass imaging. In addition, PET imaging allows assessment of myocardial function at peak stress and measurement of absolute myocardial blood flow, thus providing critical data not available with SPECT imaging. Further enhancements of the high quality of PET perfusion images may be realized by technologies under development such as respiratory gating, combined respiratory, and ECG gating to generate "motion-frozen" cardiac images, automated patient motion correction software, and high-definition PET, which reduces distortions introduced by the circular geometry of the scanner. Early studies indicate that the experimental PET radiopharmaceutical flurpiridaz F 18 provides high-quality, high-resolution myocardial perfusion images that may enable improved clinical MPI, and has properties well suited to optimized performance by application of these quantitative analytic technologies.
Cedars-Sinai Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, USA, Daniel.Berman@cshs.org.
This article was published in the following journal.
Name: Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22259005
- DOI: http://dx.doi.org/10.1007/s12350-011-9487-4
Medical and Biotech [MESH] Definitions
Radiographic Image Enhancement
Improvement in the quality of an x-ray image by use of an intensifying screen, tube, or filter and by optimum exposure techniques. Digital processing methods are often employed.
Improvement of the quality of a picture by various techniques, including computer processing, digital filtering, echocardiographic techniques, light and ultrastructural MICROSCOPY, fluorescence spectrometry and microscopy, scintigraphy, and in vitro image processing at the molecular level.
The attainment or process of attaining a new level of performance or quality.
Myocardial Perfusion Imaging
The creation and display of functional images showing where the blood is flowing into the MYOCARDIUM by following over time the distribution of tracers injected into the blood stream.
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