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| Objective analysis of tongue image features of patients with different types of colon polyps |
| Hits 204 Download times 52 Received:January 20, 2026 |
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| DOI
10.11656/j.issn.1672-1519.2026.06.07 |
| Key Words
tongue image;colorectal polyps;traditional Chinese medicine;objectification of tongue diagnosis |
| Author Name | Affiliation | E-mail | | XIE Jingya | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | LIANG Aohui | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | ZHANG Xinyu | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | LIU Zhaowei | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | WU Chenlu | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | FU Lei | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | WANG Juanjuan | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | ZHAO Jing | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | zhaojing_tju@tjutcm.edu.cn |
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| Abstract
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| [Objective] This study aims to investigate the tongue image characteristics of patients with different pathological types of colorectal polyps to establish a non-invasive auxiliary method for their differentiation. [Methods] Tongue images were collected from 44 patients with colorectal adenomatous polyps（CAP）and 36 patients with non colorectal adenomatous polyps（NCAP）using a standardized acquisition system. Color features were extracted from RGB，HSI，Lab，and YCbCr color spaces，and texture features， including contrast（CON），angular second moment（ASM），entropy（ENT），and MEAN，were calculated. Based on the zang-fu-organs theory of tongue diagnosis，the tongue was segmented into five regions：root，left，right，center，and tip. Feature extraction and significance analysis were performed for each region. [Results] Significant differences（P<0.05）were identified between CAP and NCAP patients in tongue image features，including the“a”（tongue body）and“b”（left side of tongue）channels in Lab space，and the Cb（tongue body）channel in YCbCr space，while a difference was also noted in the Cr（left side of tongue）channel of YCbCr space. [Conclusion] Distinct differences in tongue characteristics exist between patients with CAP and NCAP. Tongue image analysis provides an objective and non-invasive reference for the differential diagnosis of colorectal polyp types. |
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