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How Well Do Kidney Stones Show In A Ct Scan Without Contrast
Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more
Yes: In fact, ct scanning without contrast is becoming the gold standard evaluation for kidney stones. Contrast material frequently obscures stones and makes their identification difficult. Stones as small as 1 mm can be detected with unenhanced ct technique. Radiolucent stones which cannot be seen well with plain x-ray technique do show up well with unenhanced ct scan. ...Read more
Would a CT scan on the abdomen without contrast show kidney stones or gallbladder inflammation better than ultrasound?
CT for stones: Ct without contrast is much better than us for kidney and ureter stones. Ct detects calcium better. Most gallbladder disease involves inflammation. Us is better for right upper quadrant pain and suspected gallbladder disease. It is also cheaper and involves no radiation, so it is arguably safer over a person's lifetime. ...Read moreSee 1 more doctor answer
Would a CT scan without contrast for possible kidney stones also show if there were adrenal tumors? Dr said CT was normal.
Is an MRI without contrast on the abdomen good at diagnosing pancreatitis, gall stones or blockage, kidney stones? Does. Contrast make a difference?
not the 1st choice: Ultrasound is first imaging exam done for gallbladder problems. Ct without contrast for suspected kidney stones. Ct with contrast best for pancreas. The results of any imaging test should be evaluated in light of other lab(blood or urine) tests and your primary symptoms to accurately discover the problem. ...Read more
No: Ct and ultrasound does not "always" show kidney stones. The resolution may not be sensitive enough to see very small stones less than 2 to 3 mm. Depending on the thickness of the images on the ct scan, a stone may be potentially missed between the images taken by the ct scanner. Ultrasound may also over-read or miss very small stones as well. Overall though, the detection rate is still very hi. ...Read moreSee 1 more doctor answer
Possible : The IV contrast provides imaging of blood flow into kidneys and will detect blockages, aneurysms, asymmetric flow, mass, structural problems. Lab draw and renal panel provide functional information on how your kidneys are performing as filters. Your doc will want to follow up with you after all the studies are complete to give you results. The IV contrast itself can be damaging to your kidney. ...Read moreSee 1 more doctor answer
Had CT scan w/o contrast of kidneys to check for kidney stones and it came back normal. Would tumors and cysts also have shown up on the CT scan i had?
Yes but: Kidney tumors and cysts will show on a non-contast CT scan.However if there is a hyperdense cyst(due to hemorrhagic proteinaceous material in it) it cannot be distinguished from tumor without contrast. When contrast is given,a tumor will enhance(it will appear white)but a cyst will not enhance.I don't think you need to worry about tumor at age 33.Extremely rare.I'm glad you had no stones. ...Read moreSee 2 more doctor answers
yes!: Yes- that is exactly how a ct for renal stones should be performed- with oral or IV contrast. ...Read more
How is it possible for CT scans to miss kidney stones? I continue to pass fragments but only have stones IN my kidneys according to my CT scan in June
CT: CT scans don't miss stones even stones that ultrasound or X-ray miss the ct picks the up. Patients can often pass "gravel" like and not have formed stones and this is not unusual. Often you can have passed a stone and get the ct and thus the scan is negative. The key in stones is prevention and urine metabolic work up is needed. Contact a kidney doc. Best of luck ...Read more
Does an ivp X-ray show kidney stones when they don't show up on a kub X-ray and can someone still have a stone if none is seen on a kub x-ray?
The kidneys are paired organs that lie on either side of the vertebral column. Part of their critical functions include the excretion of urine and removal of nitrogenous wastes products from the blood. They regulate acid-base, electrolyte, fluid balance and blood pressure. Through hormonal signals, the kidneys control the ...Read more
Solutes precipitate and combine to form stones formed of calcium oxalate usually around a nidus of uric acid. Other solutes that form stones are ca and mg phosphates, cystine, and uric acid staghorn calculi form in the presence of chronic urinary tract infections. Stones can be painful, may require ...Read more
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