Publications by authors named "T Shikada"
Previous studies have demonstrated the refraction-type liquid crystal (LC)-based beam-steering devices within the visible wavelength range. However, these devices require substantial improvements in a steering angle for practical application. In this study, we first demonstrate that our device operates as a beam-steering device regardless of the wavelength of an incident laser beam.
View Article and Find Full Text PDFBackground: Because the prevalence of coronary artery calcification is lower among Japanese than among Western individuals, aspects of the Japanese lifestyle might be related to the development of calcification. We aimed to clarify the relationship between coronary artery calcium scores in Japanese patients and various lifestyle factors among the Japanese population.
Methods: Study subjects were patients aged ≥20 years who underwent multidetector-row computed tomography.
Background: The elevated D-dimer value is one of the clues used to diagnose acute aortic dissection (AAD), but the rapid D-dimer assay is not used at all emergency hospitals. The fibrinogen/fibrin degradation products (FDP) value is also an indicator of enhanced fibrinolysis and may therefore be a useful marker in patients with AAD. In addition, the association between FDP values and partial thrombosis of the false lumen is not elucidated.
View Article and Find Full Text PDFBackground: Microvascular dysfunction has been proposed as the most likely mechanism of the coronary slow flow phenomenon (CSFP).
Objectives: To determine the effects of isosorbide dinitrate and nicorandil on the CSFP.
Methods: Changes in thrombolysis in myocardial infarction (TIMI) frame count following the intracoronary administration of isosorbide dinitrate and nicorandil were assessed in 11 patients with the CSFP.