Is there a procedure to measure my stomach after vertical sleeve gastrectomy? 9 months post op and weight loss has stopped.

You can have an endoscopy to see what the state of your sleeve is or you can try a pouch reset test. I'd recommend a bariatric surgeon to do your endoscopy because they will know what the sleeve is suppose to look like. I'd also recommend a nutritionist and bariatric psychologist to make sure you aren't failing the sleeve unknowingly. But this is not a good weight loss after a sleeve. If you schedule a consultation with us, Dr. K does all endoscopies himself to see what's going on and can give you better insight.

There is a way to measure the volume, but you have to do a tomography with three-dimensional reconstruction, and thus know how much of your stomach was removed.

Stalls can happen for many reasons after VSG (Vertical Sleeve Gastrectomy), and it’s good that you’re being proactive in seeking answers.
It is possible to measure the size of your stomach after surgery. Tests such as an endoscopy or an upper GI series (a type of X-ray with contrast) can help visualize the shape and size of your stomach. These tests can show if your sleeve is larger than expected or if part of your stomach wasn’t removed as much as intended.
In some cases, a slow or halted weight loss can be related to metabolic factors, hormone levels, or how your body processes food. Even if you’re following your diet, adjustments might be necessary to break the stall. A dietitian who specializes in bariatric surgery could review your current eating habits and recommend changes that may help.
If the tests reveal that your stomach is larger or has stretched, your surgeon may discuss options like a revision or re-sleeve. In some cases, switching to a different procedure, such as bypass surgery, might be considered.