Reconstruction methods commonly include maximum intensity projection or 3-D volume rendering. For the purposes of this document, we make a distinction between CTU and CT abdomen and pelvis without and with IV contrast. CT abdomen and pelvis without and with IV contrast is defined as any protocol not specifically tailored for evaluation of the upper and lower urinary tracts and without both the precontrast and excretory phases, as is the case for CTU. CT Pelvis with Bladder Contrast (CT Cystography) CT cystography is an imaging study that is tailored to visualize traumatic bladder lesions. This technique involves retrograde drip infusion of diluted iodinated contrast into the urinary bladder followed by pelvic CT imaging at maximal bladder distension. IV contrast may be administered, particularly if evaluating for underlying neoplastic or inflammatory processes [19]. For the purposes of this document, we distinguish CT cystography from CT abdomen and pelvis without and with IV contrast. CT abdomen and pelvis without and with IV contrast is also defined as any protocol not specifically tailored for evaluation of the integrity of the urinary bladder wall and without retrograde instillation of contrast into the urinary bladder, as is the case for CT cystography. MRU MR urography (MRU) is also tailored to improve imaging of the urinary system. Unenhanced MRU relies upon heavily T2-weighted imaging of the intrinsic high signal intensity from urine for evaluation of the urinary tract. IV contrast is administered to provide additional information regarding obstruction, urothelial thickening, focal lesions, and stones. A contrast-enhanced T1-weighted series should include corticomedullary, nephrographic, and excretory phase. Thin-slice acquisition and multiplanar imaging should be obtained. For the purposes of this document, we make a distinction between MRU and MRI abdomen and pelvis without and with IV contrast.
Recurrent Lower Urinary Tract Infections in Females. Reconstruction methods commonly include maximum intensity projection or 3-D volume rendering. For the purposes of this document, we make a distinction between CTU and CT abdomen and pelvis without and with IV contrast. CT abdomen and pelvis without and with IV contrast is defined as any protocol not specifically tailored for evaluation of the upper and lower urinary tracts and without both the precontrast and excretory phases, as is the case for CTU. CT Pelvis with Bladder Contrast (CT Cystography) CT cystography is an imaging study that is tailored to visualize traumatic bladder lesions. This technique involves retrograde drip infusion of diluted iodinated contrast into the urinary bladder followed by pelvic CT imaging at maximal bladder distension. IV contrast may be administered, particularly if evaluating for underlying neoplastic or inflammatory processes [19]. For the purposes of this document, we distinguish CT cystography from CT abdomen and pelvis without and with IV contrast. CT abdomen and pelvis without and with IV contrast is also defined as any protocol not specifically tailored for evaluation of the integrity of the urinary bladder wall and without retrograde instillation of contrast into the urinary bladder, as is the case for CT cystography. MRU MR urography (MRU) is also tailored to improve imaging of the urinary system. Unenhanced MRU relies upon heavily T2-weighted imaging of the intrinsic high signal intensity from urine for evaluation of the urinary tract. IV contrast is administered to provide additional information regarding obstruction, urothelial thickening, focal lesions, and stones. A contrast-enhanced T1-weighted series should include corticomedullary, nephrographic, and excretory phase. Thin-slice acquisition and multiplanar imaging should be obtained. For the purposes of this document, we make a distinction between MRU and MRI abdomen and pelvis without and with IV contrast.