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.
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Comparison of inflammatory changes in the kidneys on CEUS compared to MRI
Timeframe: Routine descriptions of the scans will be available within about 48 hours from recruitment. Focused descriptions and comparison are conducted within 6 months after investigation.
Comparison of inflammatory changes in the kidneys on gray scale US and spectral doppler compared to the reference standard MRI
Timeframe: Routine descriptions of the scans will be available within about 48 hours from recruitment. Focused descriptions and comparison is conducted within 6 after investigation.
Sensitivity and specificity of point-of-care ultrasound on identifying hydronephrosis compared to MRI
Timeframe: Within 48 hours