Imaging Modalities of Urinary System (IV Computed Tomography(CT) Most important and most commonly used method Plain CT scan, Enhanced CT, CT angiography(CTA), cT urography(CTU)
（Ⅳ）Computed Tomography (CT) • Most important and most commonly used method. • Plain CT scan, Enhanced CT, CT angiography (CTA), CT urography (CTU) Imaging Modalities of Urinary System
Imaging Modalities of Urinary System (IV Computed Tomography(CT) Scanning techniques and methods (1)Bowel preparation: fasting, water deprivation, oral contrast agent (2) Scanning range: kidney bladder, ureter, etc (3)Window width and window level, thickness, pitch (4) The period of time and enhanced scan phase arterial phase (renal cortex phase), renal parenchymal pnase and excretory pnase
（Ⅳ）Computed Tomography (CT) • Scanning techniques and methods: (1) Bowel preparation: fasting, water deprivation, oral contrast agent (2) Scanning range: kidney, bladder, ureter, etc. (3) Window width and window level, thickness, pitch (4) The period of time and enhanced scan phase: arterial phase (renal cortex phase), renal parenchymal phase and excretory phase Imaging Modalities of Urinary System
Imaging Modalities of Urinary System (IV Computed Tomography(CT) Plain CT scan: the most commonly used method to display the lesion shape, density and position. MPR image shows the relationship with surrounding structures. Most sensitive for urinary tract stones Multi-phase enhanced scan: caution in renal dysfuction patients. Excellent in detecting and differentiating renal masses and in staging renal malignancies
（Ⅳ）Computed Tomography (CT) • Plain CT scan: the most commonly used method to display the lesion shape, density and position. MPR image shows the relationship with surrounding structures. Most sensitive for urinary tract stones. • Multi-phase enhanced scan: caution in renal dysfuction patients. Excellent in detecting and differentiating renal masses and in staging renal malignancies. Imaging Modalities of Urinary System
Imaging Modalities of Urinary System (IV Computed Tomography(CT) Special methods: (1) Renal artery CTA: thin slice scan, 3D reconstruction of renal vessels using MIP, SSD, or VRt technology (2)CTU: the whole urinary tract scan, 3D econstruction of urinary tract using Mip technology
（Ⅳ）Computed Tomography (CT) • Special methods: (1) Renal artery CTA: thin slice scan, 3D reconstruction of renal vessels using MIP, SSD, or VRT technology. (2) CTU: the whole urinary tract scan, 3D reconstruction of urinary tract using MIP technology. Imaging Modalities of Urinary System
Imaging Modalities of Urinary System (V) MRI Important complement to CT and ultrasound Non-enhanced mrl enhanced mrl mr angiography(MRA), mR Urography mru)
（Ⅴ）MRI： • Important complement to CT and ultrasound • Non-enhanced MRI, Enhanced MRI, MR angiography (MRA), MR Urography (MRU) Imaging Modalities of Urinary System