Great variety of probes.
A wide selection of miniprobes of various lengths, diameters and frequencies is available. The 12/15/20/25-MHz probes can be used in endoscopes with a biopsy channel of at least 2.8 mm diameter. The 7.5-MHz probe allows that the endoscope is used like an ultrasound endoscope.
The miniprobes with a length of 2,700 mm developed especially for double balloon endoscopy have recently become available. With the help of these high-resolution probes, it is possible to access the small intestine area sonographically for the first time.