The Sierra Scientific Instruments Manoscan Esophageal 120al was a high-resolution manometry system for evaluating esophageal motor function, which provided detailed pressure mapping from the pharynx to the stomach. It used a catheter with multiple sensors to measure pressure and was used to diagnose conditions like dysphagia and achalasia by assessing the contractions of the esophagus and its sphincters.
Sierra Scientific Instruments Manoscan 360 ESO High Resolution Manometry
$2,549.00Price
- High-resolution mapping: The system used a catheter with many sensors to create a detailed pressure image of the esophagus.
- Comprehensive evaluation: It provided a full evaluation of esophageal motor functions, including contractions and sphincter activity, with data visualized in real-time contour maps and line tracings.
- 3D visualization: Some versions could provide 3D visualization for a more complete assessment of the esophagogastric junction.
- Diagnostic capabilities: It was used to diagnose and analyze esophageal motility disorders such as dysphagia, achalasia, and hiatal hernias.
Technical specifications and operation
- Catheter: The catheter had 36 pressure sensors, spaced 1 cm apart, with each sensor covering 12 circumferential sectors.
- Pressure and sampling: It was designed to record pressures between -20 and 600 mmHg at a sampling rate of 50 Hz.
- Procedure: The system was designed to be more patient-friendly and faster than conventional methods, with some studies showing procedure times of 10 minutes or less.
- Software: Included specialized acquisition and analysis software to view and interpret pressure, impedance, and/or video data.
- Calibration: The system required pre-procedure calibration according to the manufacturer's specifications.
- Thermal drift: One of the systems' challenges was a tendency for "thermal drift," a change in pressure readings due to temperature changes. The manufacturer's software included an algorithm for thermal compensation to address this issue.