Where a six-day recording changes the conversation.
GutTracker is an aid to diagnosis and evaluation. It is most useful where symptoms are persistent, prior workup is unrevealing or discordant, and the question is which region is behaving abnormally, and when. That question is worth asking early, before a patient has spent months or years following inconclusive diagnostic and therapeutic pathways.
Chronic symptoms are nonspecific. The standard workup often is too.
Patients with chronic nausea, vomiting, early satiety or bloating routinely move through months of evaluation before anything measures how the stomach and intestines are actually behaving. In the Mayo Clinic Jacksonville cohort referred for gastric emptying scintigraphy on suspicion of gastroparesis, scintigraphy classified emptying as normal in 60% of subjects and rapid in 22%, so most patients left the test without the finding their referral was built on.1
The study's authors state the mechanism directly: conditions inherent to the test day, including fasting, disruption to usual routines, and test-related stress, may transiently suppress gastric myoelectrical activity, and the scintigraphy test meal is both low-fat and low-volume, which may not reflect a typical meal. GutTracker requires no fast and no standardized meal. The recording runs on the patient's own diet and routine, which is where the symptoms occur.1
Measuring regional function early, while the differential is still open, puts per-region activity in front of the clinician at the point the question is still being framed rather than after the standard sequence has been exhausted. GutTracker does not diagnose and does not replace scintigraphy. It adds a measurement the rest of the workup does not make.2
Chronic ambulatory functional GI disease
Chronic nausea and vomiting, functional dyspepsia, the gastroparesis spectrum, chronic constipation, and inflammatory bowel disease monitoring.3
Where prior workup disagrees
Patients whose scintigraphy, symptoms and history point in different directions. Across a full multiday recording, scintigraphy results showed no correlation with the myoelectric readings.1
What it does not measure
GutTracker does not measure gastric emptying. Gastric emptying scintigraphy remains the guideline-referenced standard for solid-meal emptying, and GutTracker neither replaces it nor measures it.1
Four steps, none in your procedure room.
- See underlying three-region function. Multi-day testing smooths out the day-to-day variability lost in a 4-hour window. Patients are tested at home, on their own routine, with no lab visit required.
- Place the order. Contact your G-Tech representative or info@gtechhealth.com. Kits ship directly to the patient or to the site.
- Apply and record. Less than 15 minutes to apply and pair three patches, up to six days of wear, and an app-based diary of meals, symptoms and bowel movements.
- Read the report. Per-organ activity levels, meal response, colonic night:day ratio, and a diary overlay.
GI diagnostic modalities.
| Modality | What it measures | Duration |
|---|---|---|
| Gastric emptying scintigraphy | Solid-meal gastric emptying, directly. The guideline-referenced standard within that scope. | Typically 4 hours, in clinic |
| Wireless motility capsule | Luminal pressure, pH and transit at the capsule's current location | Single pass |
| Antroduodenal manometry | Luminal pressure at fixed sensor positions | Hours, catheter-based |
| GutTracker | Myoelectric activity of stomach, small intestine and colon, at the skin surface4,5 | Up to 6 days, ambulatory |
References
- Lacy BE, Cangemi DJ, Axelrod L, Axelrod S, Navalgund A. Beyond the snapshot: overcoming GES limitations to characterize gastric phenotypes and therapeutic responses using a 6-day ambulatory wearable monitor. Neurogastroenterology & Motility. 2026;38:e70413. doi:10.1111/nmo.70413 Source (opens in a new tab)
- U.S. Food and Drug Administration. 510(k) premarket notification K212954, G-Tech Medical wireless patch system. Source (opens in a new tab)
- Lacy BE, Cangemi DJ, Accurso JM, Axelrod S, Axelrod L, Navalgund A. A novel pilot study to evaluate the efficacy and safety of a wireless patch system in patients with chronic nausea and vomiting. Neurogastroenterology & Motility. 2024;36(9):e14862. Source (opens in a new tab)
- Salimi-Jazi F, Thomas A-L, Rafeeqi T, Diyaolu M, Wood LSY, Axelrod S, Navalgund A, Axelrod L, Dunn JCY. Gastrointestinal myoelectric measurements via simultaneous external and internal electrodes in pigs. Journal of Surgical Research. 2022;279:119–126. doi:10.1016/j.jss.2022.05.012 Source (opens in a new tab)
- Axelrod L, Axelrod S, Navalgund A, Triadafilopoulos G. Pilot validation of a new wireless patch system as an ambulatory, noninvasive tool that measures gut myoelectrical signals: physiologic and disease correlations. Digestive Diseases and Sciences. 2020. Source (opens in a new tab)