PMID: 9549396Apr 29, 1998Paper

Impact of the correction of the attenuation in myocardial perfusion image with SPECT

Revista española de cardiología
J M Jimenez-HoyuelaL I Araujo

Abstract

The aim of this study was to assess the effect of attenuation correction on gender differences in normals and to evaluate its effect on the size and severity of lateral wall perfusion defects in patients with circumflex artery disease. Tomographic myocardial perfusion imaging with and without attenuation correction was performed on 32 patients with circumflex artery stenosis and compared with patients with less than 5% likelihood of coronary disease. Images were acquired with a triple headed scanner and reconstructed using an iterative algorithm and re-sliced in the short axis plane. Regional count densities were measured on selected short axis slices from the base to the apex in both patients and normals. All attenuation corrected images were found to be more uniform than the non attenuation corrected images on the patients with less than 5% likelihood of coronary artery disease. The coefficient of variation was 12.5% for non attenuation corrected images versus 9.9% for attenuation corrected images (p < 0.0001). When female and male segmental count distributions were compared, significant differences were found which were resolved after attenuation correction. In patients with circumflex artery stenosis, the anterolateral and ...Continue Reading

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
Bhupinder SinghGary V Heller
Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
Michael E SpiethKeith C Roewe
European Journal of Nuclear Medicine and Molecular Imaging
Alberto Cuocolo
© 2022 Meta ULC. All rights reserved