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The scan itself usually involves a CT scan without contrast (a non-contrast phase), a CT scan while the contrast is within the kidneys (a parenchymal phase), and a CT scan taken while the contrast travels through the renal tract (an excretory phase). Risks. A person may have an allergy to the contrast dye.
It is also a useful test to investigate acute abdominal pain (especially of the lower quadrants, whereas ultrasound is the preferred first line investigation for right upper quadrant pain). Renal stones , appendicitis , pancreatitis , diverticulitis , abdominal aortic aneurysm , and bowel obstruction are conditions that are readily diagnosed ...
Cystitis cystica can show up on a CT urogram as a number of small, rounded filling defects in the bladder wall that range in size from 2 to 5 mm. Lesions can also occasionally appear as a large, tumor-like mass. Treatment. Since determining the precise cause of cystitis cystica can be difficult, treatment can be complicated.
Retrograde urethrogram. Urethrogram showing an urethra stricture in a man. A retrograde urethrography [1] is a routine radiologic procedure (most typically in males) used to image the integrity of the urethra . Hence a retrograde urethrogram is essential for diagnosis of urethral injury, or urethral stricture. [2] [3]
Urology. Complications. Acute kidney injury. Renal colic, also known as ureteric colic, is a type of abdominal pain commonly caused by obstruction of ureter from dislodged kidney stones. The most frequent site of obstruction is the vesico-ureteric junction (VUJ), the narrowest point of the upper urinary tract.
Imaging studies, such as an intravenous urogram (IVU), renal ultrasonography, CT, or MRI, are also important investigations in determining the presence and/ or cause of hydronephrosis. Whilst ultrasound allows for visualisation of the ureters and kidneys (and determine the presence of hydronephrosis and / or hydroureter), an IVU is useful for ...
Pyelogram (or pyelography or urography) is a form of imaging of the renal pelvis and ureter. [1] Types include: Intravenous pyelogram – In which a contrast solution is introduced through a vein into the circulatory system. Retrograde pyelogram – Any pyelogram in which contrast medium is introduced from the lower urinary tract and flows ...
CT urography (CTU) is commonly used in the evaluation of hematuria, and specifically tailored to image the renal collecting system, ureters and bladder in addition to the renal parenchyma. Initial imaging includes a noncontrast phase to detect renal calculi as a source of hematuria.
Ultrasound Scans can show signs of obstruction such as hydronephrosis, while a CT scans can show the same and can locate the stricture or narrowing especially if used with contrast (CT Urogram), it can delineate other pathologies that might contribute to stricture such as Tumours or impacted stones.
CT cystography. CT cystography is performed by filling up the urinary bladder using diluted iodinated contrast to visualise any bladder injury if the subject has haematuria (blood in urine) post trauma. Since CT cystography can be done together with CT abdomen and pelvis, it has supplanted conventional cystography in such cases. See also