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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03258216
Other study ID # 104-4725B
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 1, 2016
Est. completion date December 31, 2017

Study information

Verified date September 2020
Source Chang Gung Memorial Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The Automatic Tongue Diagnosis System (ATDS) was developed to capture tongue images and extract features reliably to assist the diagnosis of TCM practitioners.This project will employ the ATDS verified to extract the tongue features of patients with upper gastrointestinal disorders, such as peptic ulcer, etc. A TCM indices derived through the non-intrusive tongue diagnosis procedure can provide valuable information for clinical doctors to analyze the current status of a patient and dynamically schedule a treatment plan, facilitating early detection and diagnosis of upper gastrointestinal disorders.


Description:

Upper gastrointestinal disorders are common in clinical practice. Currently, the diagnosis of peptic ulcer only depends on laboratory exams such as clinical symptoms, blood test, urine test and feces test. But the result can be only auxiliary exams which don't gain correct diagnosis on helping assess ulcer severity. As the most suitable diagnosis method, panendoscopy can directly observe lesions, judge disease severity, carry out a biopsy, test lesion is benignant or malignant, Helicobacter Pylorus infection or not, the degree of inflammation, etc. But panendoscopy belongs to invasive test. If we can observe tongue characteristics of patients with upper gastrointestinal diseases through scientific tongue diagnosis, physical discomfort caused by the test will be significantly reduced.

Based on clinical observational study, this project will employ the Automatic Tongue Diagnosis System (ATDS) developed. The ATDS was developed to capture tongue images and extract features reliably to assist the diagnosis of TCM practitioners demonstrates the steps in the three major functions, i.e., image capturing and color calibration, tongues area segmentation, and tongue feature extraction, included in the ATDS.

Variations in background lighting may change the color and brightness of the acquired images, greatly affecting consistency and stability of the extracted tongue features. The ATDS developed can automatically correct lighting and color deviation caused by the change of background lighting with a color bar attached in the ATDS. The color bar placed beside the patient is used for color calibration to make sure the image quality is consistent even taken at different circumstances. Tongue images are analyzed by first isolating the tongue region within an image to eliminate irrelevant lower facial portions and background surrounding the tongue, thereby facilitating feature identification and extraction; and then extracting the tongue features by employing criteria such as the aspect ratio, color composition, location, shape, and color distribution of the tongue, as well as the quantity of neighboring pixels. Features including tongue color, tongue fissure, fur color, fur thickness, ecchymosis, tooth mark, red dot, saliva, and tongue shape are extracted to further generate detailed information regarding length, area, moisture, and number of fissures, marks, and dots to be employed in tongue diagnosis. Nine primary tongue features, including tongue color (slightly white, slightly red, red, dark red, dark purple), fur color (white, yellow, dye), fur thickness (none, thin, thick), saliva (none, little, normal, excessive), tongue shape (thin and small, moderate, fat and large), tongue fissure, red dot, ecchymosis, and tooth marks (the last four features are divided into categories of none, mild, moderate, and severe), are selected for tongue diagnosis.

This project will employ the ATDS verified to extract the tongue features of patients with upper gastrointestinal disorders. Through statistically analysis of the data collected and cross-referencing the existing indices of western medicine, we aim to derive meaningful TCM indices from tongue diagnosis of upper gastrointestinal diseases, such as peptic ulcer, etc. A TCM indices derived through the non-intrusive tongue diagnosis procedure can provide valuable information for clinical doctors to analyze the current status of a patient and dynamically schedule a treatment plan, facilitating early detection and diagnosis of upper gastrointestinal disorders.


Recruitment information / eligibility

Status Completed
Enrollment 134
Est. completion date December 31, 2017
Est. primary completion date December 31, 2017
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 20 Years and older
Eligibility Inclusion Criteria:

- Patients with upper gastrointestinal disorders

- Both males and females above 20 years old were included

- Patients who had signed Institutional Review Board (IRB) agreement

Exclusion Criteria:

- Patients who had not signed IRB agreement

- Patients who had hypertension, diabetes, hepatitis, or other systemic diseases

- Pregnant women

- Patient with acute infection

- Cognitive impaired, for example, cancer metastasis to brain or dementia

- Risk of temporomandibular joint dislocation

- Patients unable to protrude the tongue stably

Study Design


Intervention

Diagnostic Test:
panendoscopy
panendoscopy
tongue image
capture tongue images by Automatic Tongue Diagnosis System

Locations

Country Name City State
Taiwan Kaohsiung Chang Gung Memorial Hospital Kaohsiung

Sponsors (2)

Lead Sponsor Collaborator
Chang Gung Memorial Hospital National Sun Yat-sen University

Country where clinical trial is conducted

Taiwan, 

References & Publications (10)

Chiu CC. A novel approach based on computerized image analysis for traditional Chinese medical diagnosis of the tongue. Comput Methods Programs Biomed. 2000 Feb;61(2):77-89. — View Citation

Hu J, Han S, Chen Y, Ji Z. Variations of Tongue Coating Microbiota in Patients with Gastric Cancer. Biomed Res Int. 2015;2015:173729. doi: 10.1155/2015/173729. Epub 2015 Sep 17. — View Citation

Jung CJ, Jeon YJ, Kim JY, Kim KH. Review on the current trends in tongue diagnosis systems. Integr Med Res. 2012 Dec;1(1):13-20. doi: 10.1016/j.imr.2012.09.001. Epub 2012 Oct 5. Review. — View Citation

Kim J, Han G, Ko SJ, Nam DH, Park JW, Ryu B, Kim J. Tongue diagnosis system for quantitative assessment of tongue coating in patients with functional dyspepsia: a clinical trial. J Ethnopharmacol. 2014 Aug 8;155(1):709-13. doi: 10.1016/j.jep.2014.06.010. Epub 2014 Jun 13. — View Citation

Kim J, Son J, Jang S, Nam DH, Han G, Yeo I, Ko SJ, Park JW, Ryu B, Kim J. Availability of tongue diagnosis system for assessing tongue coating thickness in patients with functional dyspepsia. Evid Based Complement Alternat Med. 2013;2013:348272. doi: 10.1155/2013/348272. Epub 2013 Sep 15. — View Citation

Lee TC, Lo LC, Wu FC. Traditional Chinese Medicine for Metabolic Syndrome via TCM Pattern Differentiation: Tongue Diagnosis for Predictor. Evid Based Complement Alternat Med. 2016;2016:1971295. doi: 10.1155/2016/1971295. Epub 2016 May 25. — View Citation

Lo LC, Chen CY, Chiang JY, Cheng TL, Lin HJ, Chang HH. Tongue diagnosis of traditional Chinese medicine for rheumatoid arthritis. Afr J Tradit Complement Altern Med. 2013 Aug 12;10(5):360-9. eCollection 2013. — View Citation

Lo LC, Chen YF, Chen WJ, Cheng TL, Chiang JY. The Study on the Agreement between Automatic Tongue Diagnosis System and Traditional Chinese Medicine Practitioners. Evid Based Complement Alternat Med. 2012;2012:505063. doi: 10.1155/2012/505063. Epub 2012 Aug 8. — View Citation

Lo LC, Cheng TL, Chiang JY, Damdinsuren N. Breast cancer index: a perspective on tongue diagnosis in traditional chinese medicine. J Tradit Complement Med. 2013 Jul;3(3):194-203. doi: 10.4103/2225-4110.114901. — View Citation

Lo LC, Chiang JY, Cheng TL, Shieh PS. Visual agreement analyses of traditional chinese medicine: a multiple-dimensional scaling approach. Evid Based Complement Alternat Med. 2012;2012:516473. Epub 2012 Sep 17. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Tongue features diagnosed by the Automatic Tongue Diagnosis System (ATDS) 5-10 mins
Secondary Panendoscopy report diagnosed upper GI disorders by panendoscopy 20-30 mins
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