| Title: | Pilot Study: Detection of Gastric Cancer From Exhaled Air Analyzed With an Electronic Nose in Chinese Patients |
| Author(s): | Schuermans VNE; Li Z; Jongen A; Wu Z; Shi J; Ji J; Bouvy ND; |
| Address: | "1 Maastricht University Medical Centre, Maastricht, Netherlands. 2 Beijing University Cancer Hospital & Institute, Beijing, China. 3 NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, Netherlands" |
| ISSN/ISBN: | 1553-3514 (Electronic) 1553-3506 (Print) 1553-3506 (Linking) |
| Abstract: | "The aim of this pilot study is to investigate the ability of an electronic nose (e-nose) to distinguish malignant gastric histology from healthy controls in exhaled breath. In a period of 3 weeks, all preoperative gastric carcinoma (GC) patients (n = 16) in the Beijing Oncology Hospital were asked to participate in the study. The control group (n = 28) consisted of family members screened by endoscopy and healthy volunteers. The e-nose consists of 3 sensors with which volatile organic compounds in the exhaled air react. Real-time analysis takes place within the e-nose, and binary data are exported and interpreted by an artificial neuronal network. This is a self-learning computational system. The inclusion rate of the study was 100%. Baseline characteristics differed significantly only for age: the average age of the patient group was 57 years and that of the healthy control group 37 years ( P value = .000). Weight loss was the only significant different symptom ( P value = .040). A total of 16 patients and 28 controls were included; 13 proved to be true positive and 20 proved to be true negative. The receiver operating characteristic curve showed a sensitivity of 81% and a specificity of 71%, with an accuracy of 75%. These results give a positive predictive value of 62% and a negative predictive value of 87%. This pilot study shows that the e-nose has the capability of diagnosing GC based on exhaled air, with promising predictive values for a screening purpose" |
| Keywords: | Adult Breath Tests/*instrumentation/methods China *Electronic Nose Evidence-Based Medicine Female Humans Male Middle Aged Pilot Projects Prospective Studies ROC Curve Sensitivity and Specificity Stomach Neoplasms/*diagnosis/surgery Volatile Organic Compou; |
| Notes: | "MedlineSchuermans, Valerie N E Li, Ziyu Jongen, Audrey C H M Wu, Zhouqiao Shi, Jinyao Ji, Jiafu Bouvy, Nicole D eng 2018/06/19 Surg Innov. 2018 Oct; 25(5):429-434. doi: 10.1177/1553350618781267. Epub 2018 Jun 18" |
