Testing ultrasound to monitor diaphragm function in ALS

This research trial is testing whether a simple ultrasound scan of the diaphragm — the main muscle that helps you breathe — can be a better way to monitor how ALS is affecting your breathing. Right now, doctors use breathing tests and oxygen measurements to check diaphragm function, but these tests are hard to do and don't always catch problems early. This study wants to see if ultrasound imaging could be an easier, faster way to spot breathing problems sooner.

Many ALS patients have trouble getting the standard breathing tests because the tests are complex and hard to perform, especially if ALS has affected swallowing or speech. In addition, these tests often only catch breathing problems late in the disease. Doctors need a simpler, earlier warning tool so they can start breathing support at the right time and help patients stay healthier longer.