Publications by authors named "T Niida"

Background: Coronary artery calcium score (CACS) is widely used for risk stratification. However, in patients with established coronary artery disease, its clinical implication and relationship with plaque vulnerability are unclear. We sought to correlate the CACS and plaque vulnerability assessed by optical coherence tomography.

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Article Synopsis
  • This study investigated the differences in total plaque burden between patients experiencing plaque rupture versus plaque erosion during acute coronary syndromes, employing coronary computed tomography angiography (CTA) and optical coherence tomography for analysis.
  • A total of 232 patients were examined, revealing that those with plaque rupture showed significantly greater total plaque, non-calcified plaque, low-density non-calcified plaque, and calcified plaque burdens compared to those with plaque erosion.
  • The findings suggest that plaque rupture is associated with more severe coronary artery disease, indicating a potential need for varied clinical management strategies for patients based on the type of plaque pathology present.
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Background: The relationship between plaque burden and microscopic characterization of plaque features as it pertains to clinical presentation has not been fully investigated. The aim of this study was to compare the relationship between plaque burden and plaque vulnerability in patients with acute coronary syndromes (ACS) versus chronic coronary syndrome (CCS).

Methods: Patients who underwent both coronary computed tomography angiography (CTA) and optical coherence tomography (OCT) before coronary intervention were enrolled.

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Background: Coronary artery calcification is an integral part of atherosclerosis. It has been suggested that early coronary artery calcification is associated with active inflammation, and advanced calcification forms as inflammation subsides. Inflammation is also an important factor in plaque vulnerability.

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We report a measurement of exclusive J/ψ and ψ(2s) photoproduction in Au+Au ultraperipheral collisions at sqrt[s_{NN}]=200  GeV using the STAR detector. For the first time, (i) the ψ(2s) photoproduction in midrapidity at the Relativistic Heavy-Ion Collider has been experimentally measured; (ii) nuclear suppression factors are measured for both the coherent and incoherent J/ψ production. At average photon-nucleon center-of-mass energy of 25.

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