Finding the right tests…
Emergency services available 24 x 7
Emergency services available 24 x 7
Finding the right tests…
CT Scan
Not every pelvis scan needs dye. This plain version still images the bladder, rectum, reproductive organs, and pelvic bones using x-rays alone, which is enough when the question is about structure rather than blood flow or subtle tissue differences. Doctors order it for suspected pelvic bone injury, a stone that's dropped into the lower ureter or bladder, or as a baseline look before deciding if contrast is needed. It's also the choice when kidney function or a known contrast allergy makes an iodine-based dye risky. Since there's no contrast to wait for, this appointment is typically quicker than the contrast version of the same scan.
The radiologist reviews the bladder, rectum, reproductive organs, and pelvic bones for structural abnormalities, fractures, or stones, without contrast-based detail on blood flow. Findings are written into a report for your doctor. If something needs a closer look with contrast, your doctor will discuss that as a next step.
Even without contrast, x-rays alone reveal the shape, size, and position of the bladder, rectum, reproductive organs, and the pelvic bones. This is enough to catch a pelvic fracture, a stone in the lower urinary tract, or gross structural changes in these organs.
Telling a tumor apart from inflamed or normal tissue usually needs the added blood-flow detail that contrast provides. If your doctor is investigating a possible cancer or infection rather than a structural question, they're more likely to order the contrast version instead.
- A pelvic bone injury or fracture is suspected - A stone has moved into the lower ureter or bladder - Kidney function or a contrast allergy rules out dye - A quick structural baseline is needed before deciding on contrast
Ask your doctor or the centre whether any preparation applies to your specific appointment.
It shows the shape, size, and position of the bladder, rectum, reproductive organs, and pelvic bones clearly using x-rays alone. It's well suited to structural questions like a bone injury or a stone in the lower urinary tract.
If the concern is structural, such as a fracture or a stone, contrast usually doesn't add much useful information. Skipping it also avoids the iodine-related risks for people with kidney disease or a known allergy.
Yes, a stone that has moved down into the bladder or lower ureter typically shows up clearly on a plain CT scan without needing dye. This is consistent with non-contrast CT being the standard approach for stones throughout the urinary tract.
This page is general information about the test, not medical advice. Your own report's reference ranges apply — please discuss your results with your doctor.
A plain scan can still show a mass if it's large enough to change the shape of an organ, but contrast helps far more with spotting and characterizing smaller or subtler growths. If cancer is a real concern, your doctor is more likely to order the contrast version.
Preparation instructions vary depending on what your doctor is checking for and aren't something to assume from a general description. Ask your doctor or the diagnostic centre directly what applies to your appointment.
Tell your doctor and the technologist about any chance of pregnancy before the scan, since it still uses x-ray radiation close to the reproductive organs even without contrast. CT scans are generally avoided during pregnancy unless there's no safer alternative.