Publications by authors named "Sou Yamada"
Article Synopsis
- The study investigated how changes in disease severity within the first 48 hours of ICU admission affect physical function more than the severity at admission itself.
- Researchers analyzed data from 199 adult ICU patients across seven hospitals in Japan, using the Barthel Index to assess physical independence at discharge.
- Results showed that a rise in the Sequential Organ Failure Assessment (SOFA) score during the first 48 hours was strongly linked to lower physical function scores at discharge, while the initial SOFA score at admission was not significantly related.
Aims: We evaluated diagnostic accuracy of CT-fractional flow reserve (CT-FFR) computed on-site with a new vendor workstation, against invasive FFR as the reference standard.
Methods And Results: Retrospective analyses compared CT-FFR of 104 vessels with 30-90% diameter stenosis in 75 patients imaged using single-rotation 320 detector-row coronary CT angiography (CCTA) with invasive FFR performed within 90 days. Prospective ECG-gated CCTA included exposure of 70-99% of the R-R interval.
Noninvasive Computed Tomography-Derived Fractional Flow Reserve Based on Structural and Fluid Analysis: Reproducibility of On-site Determination by Unexperienced Observers.
J Comput Assist Tomogr
April 2018
Objective: The aim of this study was to evaluate the reproducibility of computed tomography (CT)-derived fractional flow reserve (FFR) determined on site by inexperienced observers using a postprocessing software based on structural and fluid analysis.
Methods: Using 21 coronary vessels in 7 patients who underwent 320-row coronary CT angiography and catheter-FFR, 2 independent inexperienced observers (A: a student radiation technologist; B: a nonmedical staff) determined the CT-FFR using a postprocessing software. After a 20-minute training session, both observers postprocessed all vessels and readjusted their settings after another training/feedback.