Doctor insights on:
Does A Ct Or Ultrasound Always Show Kidney Stones
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
An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...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
No: No, stones that passed out of the body are gone. It will show any remaining stones. There may temporarily be some residual signs of the obstruction caused by the stone, however. Also, if an infection has resolved, the CT might temporarily show some residual signs of the infection, but will otherwise be normal unless the infection resulted in scarring of the kidney. ...Read moreSee 1 more doctor answer
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
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
The renal ultrasound and kub X-ray shows no stones in kidneys or gall bladder but a urinal stone. What might be the reason?
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?
It could.: Inflammatory changes would show up on a ct scan of an infected uterus, but usually laboratory studies, and the clinical exam would give an idea of this as well. Women with suspected uterine infections (when not pregnant) are usually treated for this with antibiotics. The ct scan may be looking for other sources of infection like appendicitis, or intestinal infections. ...Read more
Yes and no...: Non-contrast ct is superior to ultrasound for kidney stones. Some stones will be visible on ultrasound, but the majority will not. Ultrasound will show if you have hydronephrosis (swelling or distension of the kidney collecting system for urine) which can suggest a blockage that may be due to a kidney stone. Hope this helps! ...Read moreSee 1 more doctor answer
Indication 4 surgery: Cystoscope is a surgical procedure with risk. Before signing consent, have family with you to ask surgeon these questions. Understand your risk/benefit analysis. Typically the cystoscope allows views of the inside lining, not provided on ct and kub, with access to remove objects, place stent, take biopsy, make additional recommendations. Kub and ct may show obstruction, scope can correct. ...Read moreSee 1 more doctor answer
Yes, depends on seve: If the blockage is complete & urine backs up into the kidneys, you can get a condition called hydronephrosis. This can be detected on ultrasound due to the dilation of the ducts in the kidneys (like stepping on a garden hose- water backs up & bulges). Ultrasound can miss a kidney stone due to its location or size; however, it can detect the *effects* of a kidney stone, by which diagnosis is made. ...Read more
Had CT scan to look for kidney stones, do they check gall bladder & appendix also, or only look for kidney stones?
Would a CT scan without contrast for possible kidney stones also show if there were adrenal tumors? Dr said CT was normal.
Will a cytoscopy find a possible bladder abnormality for microscopic blood In Urine that would've been missed by an abdomen CT w/cont and transvag ultrasound? No kidney stones and ct and ultrasound negative. Is cytoscopy necessary?
Here are some...: Known to us, there has been no test or exam giving a 100% specificity and sensitivity of accuracy. To further realistically understand hematuria, peruse article on Hematuria in http://www.formefirst.com/hematuria.html, and to further realize Basics of Life Reality and Self-care in http://www.formefirst.com/Basics-SelfImprovement.html. More? Contact www.Healthtap.com/dr-Lin with rqpwjc to login. ...Read moreSee 1 more doctor answer
3mm stone show up on ultrasound , then I had a CT scan and it show no stones , so was the ultrasound wrong ? Or other blood in urine and pain sti
Stone: Ct scan is much more sensitive than an ultrasound study for identifying smaller kidney stone. However due to recent concerns raised in the media about the radiation exposure from ct, many practitioners have gone toward using ultrasound as a first line study. Didn't understand the second half of your inquiry. www.peedoc.com @drhtay. ...Read moreSee 1 more doctor answer
Depends: For renal stones (in kidney), ultrasound is usually adequate. Can also see dilation of the kidney when stone is blocking the outflow tube (ureter). For better clear picture and to see ureteral stones which are closer to bladder, ct scan is better. However, all ctscans must be considered carefully given the radiation exposure to the patient which ultrasound does not have. ...Read more
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
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
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