Chinese Medical Sciences Journal ›› 2024, Vol. 39 ›› Issue (2): 122-130.doi: 10.24920/004307
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Diagnostic Accuracy of Computerized Bowel Sound Analysis with Non-Invasive Devices for Irritable Bowel Syndrome: A Systematic Review and Meta-Analysis
Xia-Xiao Yan1, 2#, Yue-Lun Zhang3#, Yu-Pei Zhang2#, Ying-Yun Yang1, Dong Wu1, *(
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- 1Department of Gastroenterology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
2Eight-Year Medical Doctor Program, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
3Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Received:2023-10-16Accepted:2024-02-07Published:2024-06-30Online:2024-04-10 -
Contact:*wudong@pumch.cn -
About author:#co-first author:Contributed equally to the article.
Cite this article
Xia-Xiao Yan, Yue-Lun Zhang, Yu-Pei Zhang, Ying-Yun Yang, Dong Wu. Diagnostic Accuracy of Computerized Bowel Sound Analysis with Non-Invasive Devices for Irritable Bowel Syndrome: A Systematic Review and Meta-Analysis[J].Chinese Medical Sciences Journal, 2024, 39(2): 122-130.
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Figure 1.
Flow diagram of study identification."
Figure 1.
Table 1.
Demographical and clinical characteristics of the included studies"
| Study | Country | Study design | Clinical setting | Recruitment | Subject no. | Mean age (yrs) | Male: female: transgender | ||
|---|---|---|---|---|---|---|---|---|---|
| Patients | Controls | Patients | Controls | ||||||
| Craine et al. [ | USA | Case- control | Gastroenterology Clinic at the Alameda County Medical Center | From medical center | Volunteers from a community | 18 | 15 | NA | 11:22:0 |
| Craine et al.[ | USA | Case-control | Gastroenterology Clinic at the Alameda County Medical Center | From medical center | Volunteers from a community and patients presenting with conditions unrelated to abdominal discomfort | 45 | 37 | 43.6 | 31:51:0 |
| Du et al.[ | Australia | Case-control | Marshall Center, the University of Western Australia | Advertisment and media interviews | Advertisment and media interviews | 15 | 15 | 34.2 | 5:24:1 |
| Du et al.[ | NA | Case-control | NA | NA | NA | 33 | 32 | NA | NA |
Table 1.
Table 2.
Overview of bowel sound analysis and reference standard in the included studies"
| Studies | Reference standard | Bowel sound analysis | Diagnostic performance of bowel sound analysis | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Recording | Analysis | Index | TP (n) | FP (n) | FN (n) | TN (n) | Se | Sp | |||
| Craine et al.[ | Rome criteria. Persistent or recurring symptoms for at least one year | Electronic stethoscope on right lower quadrant of the abdomen | Creative WaveStudio software package | Sound-to-sound interval > 640 ms | 16 | 0 | 2 | 15 | 0.89 | 1.00 | |
| Craine et al.[ | Rome criteria. At least two clinic visits to verify the IBS diagnosis | Electronic stethoscope on the right side of the umbilicus | Enterotach software | Sound-to-sound interval > 740 ms | 44 | 5 | 1 | 32 | 0.98 | 0.86 | |
| Du et al.[ | A formal diagnosis of IBS, symptoms persisting for at least six months, no organic cause for the symptoms after a colonoscopy within the past ten years (typically within the past five years) | Zoom H6 handy recorder connected to four piezoelectric transducers on four quadrants of the abdomen | Logistic regression machine learning model and testing | Acoustic index of IBS calculated from 26 bowel sounds features | 13 | 2 | 2 | 13 | 0.87 | 0.87 | |
| Du et al.[ | Not reported. An existing clinical diagnosis of IBS | Micro-Electro-Mechanical Systems microphones on four quadrants of the abdomen | Logistic regression machine learning model and testing | A model based on 13 acoustic features related to motility and shifting motion complex and two symptom features | 31 | 4 | 2 | 28 | 0.94 | 0.88 | |
Table 2.
Figure 2.
Assessment of the bias risk and applicability concerns in each included study."
Figure 2.
Figure 3.
Forest plot of pooled sensitivity and specificity of bowel sound analysis for the diagnosis of IBS."
Figure 3.
Figure 4.
Pooled receiver operating characteristic plot of bowel sound analysis for the diagnosis of IBS. SROC: summary receiver operating characteristic; AUC: area under curve."
Figure 4.
Figure 5.
Deek's funnel plot for publication bias."
Figure 5.
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