A novel respiratory reactance index, frequency-dependent, and for effort-independent assessment of COPD severity using MostGraph.

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Title: A novel respiratory reactance index, frequency-dependent, and for effort-independent assessment of COPD severity using MostGraph.
Authors: Tsuji H; Clinical Department of Respiratory Medicine and Thoracic Oncology, Osaka Medical and Pharmaceutical University Hospital, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan. Electronic address: hiroyuki.tsuji@ompu.ac.jp., Mitsuya S; Clinical Department of Respiratory Medicine and Thoracic Oncology, Osaka Medical and Pharmaceutical University Hospital, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan; Department of Internal Medicine (I) Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan., Tsuruoka K; Clinical Department of Respiratory Medicine and Thoracic Oncology, Osaka Medical and Pharmaceutical University Hospital, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan; Department of Internal Medicine (I) Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan., Nakamura T; Clinical Department of Respiratory Medicine and Thoracic Oncology, Osaka Medical and Pharmaceutical University Hospital, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan; Department of Internal Medicine (I) Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan., Tamura Y; Clinical Department of Respiratory Medicine and Thoracic Oncology, Osaka Medical and Pharmaceutical University Hospital, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan., Goto I; Respiratory Medicine, Hirakata City Hospital, 2-14-1, Kinyahonmachi, Hirakata, Osaka, Japan., Min K; Respiratory Clinic, Uedashimotanabe Hospital, 33-1, Noborimachi, Takatuki, Osaka, Japan., Ikeda S; Clinical Department of Respiratory Medicine and Thoracic Oncology, Osaka Medical and Pharmaceutical University Hospital, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan; Department of Internal Medicine (I) Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan., Imagawa A; Department of Internal Medicine (I) Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan., Fujisaka Y; Clinical Department of Respiratory Medicine and Thoracic Oncology, Osaka Medical and Pharmaceutical University Hospital, 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan.
Source: Respiratory medicine [Respir Med] 2026 Feb; Vol. 252, pp. 108656. Date of Electronic Publication: 2026 Jan 15.
Publication Type: Journal Article; Observational Study
Journal Info: Publisher: Elsevier Country of Publication: England NLM ID: 8908438 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1532-3064 (Electronic) Linking ISSN: 09546111 NLM ISO Abbreviation: Respir Med Subsets: MEDLINE
Database: MEDLINE Ultimate
Description
ISSN:1532-3064
DOI:10.1016/j.rmed.2026.108656