Diagnostic Imaging of Acute Pyelonephritis

Acute pyelonephritis is important to recognize and treat quickly. Today the diagnosis is primarily clinical and often challenging. Sometimes acute pyelonephritis is complicated by obstruction leading to hydronephrosis. The aim of this study is to investigate whether ultrasound scanning conducted by a radiologist can diagnose acute pyelonephritis. Also, the investigators will investigate whether health care professionals with basic ultrasound skills can diagnose hydronephrosis by point-of-care ultrasound scanning in patients suspected of acute pyelonephritis.