But with wavelet. analysis, we can use approximating functions that are contained neatly in ï¬nite domains. Wavelets. are well-suited for approximating data with sharp discontinuities. The wavelet analysis procedure is to adopt a wavelet prototype function, called an analyzing. wavelet or mother wavelet. Temporal analysis is performed with a contracted, high-frequency version. of the prototype wavelet, while frequency analysis is performed with a dilated, low-frequency version. of the same wavelet.
Pregnancy test for women of childbearing age, to rule out pregnancy as a cause of abdominal pain. Liver function tests, to rule out other causes of abdominal pain. Stool test, to rule out infection in people who have diarrhea. CT scan, which can indicate inflamed or infected pouches and confirm a diagnosis of diverticulitis. CT can also indicate the severity of diverticulitis and guide treatment.
CT features of chronic pancreatitis that can be visualized on CT scans include dilatation of the main pancreatic duct; calcifications; changes in size, shape, and contour; pseudocysts; and bile duct changes.