CT should be reserved for problematic situations in which a diagnosis cannot be made on US or MRI [17]. When CT is required, a low- dose CT protocol should be used [6]. CT Abdomen and Pelvis Without and With IV Contrast There is limited evidence to support the use of CT abdomen and pelvis without and with IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT should be reserved for problematic situations in which a diagnosis cannot be made on US or MRI [17]. When CT is required, a low-dose CT protocol should be used [6]. Hydronephrosis on Prior Imaging-Unknown Cause CT Abdomen and Pelvis Without IV Contrast There is limited evidence to support the use of CT abdomen and pelvis without IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT should be reserved for problematic situations in which a diagnosis cannot be made on US or MRI [17]. When CT is required, a low-dose CT protocol should be used [6]. CT Abdomen With IV Contrast There is limited evidence to support the use of CT abdomen with IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT Abdomen Without and With IV Contrast There is limited evidence to support the use of CT abdomen without and with IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT Abdomen Without IV Contrast There is limited evidence to support the use of CT abdomen without IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CTU Without and With IV Contrast There is limited evidence to support the use of CTU without and with IV contrast for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause.
Hydronephrosis on Prior Imaging Unknown Cause. CT should be reserved for problematic situations in which a diagnosis cannot be made on US or MRI [17]. When CT is required, a low- dose CT protocol should be used [6]. CT Abdomen and Pelvis Without and With IV Contrast There is limited evidence to support the use of CT abdomen and pelvis without and with IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT should be reserved for problematic situations in which a diagnosis cannot be made on US or MRI [17]. When CT is required, a low-dose CT protocol should be used [6]. Hydronephrosis on Prior Imaging-Unknown Cause CT Abdomen and Pelvis Without IV Contrast There is limited evidence to support the use of CT abdomen and pelvis without IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT should be reserved for problematic situations in which a diagnosis cannot be made on US or MRI [17]. When CT is required, a low-dose CT protocol should be used [6]. CT Abdomen With IV Contrast There is limited evidence to support the use of CT abdomen with IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT Abdomen Without and With IV Contrast There is limited evidence to support the use of CT abdomen without and with IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CT Abdomen Without IV Contrast There is limited evidence to support the use of CT abdomen without IV contrast (separate from CTU) for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause. CTU Without and With IV Contrast There is limited evidence to support the use of CTU without and with IV contrast for initial imaging of pregnant patients with symptomatic hydronephrosis with unknown cause.