Sendai Medical Center

Synergistic Effect of Ambient Ozone, Relative Humidity, and Temperature on Epidemic Patterns of Influenza: A Hypothesis and Its Verification

The mechanisms underlying seasonal patterns in influenza epidemics have long been an enigma. Our laboratory study revealed that ambient ozone significantly inactivates airborne influenza viruses synergistically with higher relative humidity and temperature. This led us to hypothe...

Persistent Cross-Institutional Domain Shift in Narrow-Band Imaging Classification of Colorectal Lesions and the Utility of Site-Specific Fine-Tuning

Background/Objectives: Cross-institutional transfer of endoscopic deep learning models may be limited by acquisition and preprocessing differences. We reassessed persistent domain shift after correcting Facility B input linkage and validation design. Methods: A preflight audit co...

Proposal of a champagne bottle neck sign grading system reflecting advanced Suzuki stage and hemodynamic compromise in patients with Moyamoya disease

The champagne bottle neck sign (CBNS) is regarded as a characteristic finding of the cervical internal carotid artery in patients with moyamoya disease (MMD). However, there is no universal definition, and its clinical significance remains unclear. Here, we aimed to propose a nov...