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 more
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
It it possible for kidney stones to show up on ultrasound and not of CT scan if so what kind of stones would they be (uric acid)?
Blood in urine reoccuing UTI CT scan 3mm kidney stone bladder ultra sound scan shows bladder not emptying proper what could this be?
Cystitis.: Gross hematuria probably as a result of cystitis caused by the bladder outlet narrowing or stenosis and not because of the kidney stone. By drinking more water like 8 cups a day you can pass the kidney stone. For the cystitis you need urine culture. Until the culture result comes back you can be put on an antibiotic such as cipro (ciprofloxacin) to stop the gross hematuria. ...Read more
Hi dr! I want to ask. Is it possible that a kidney stones was seen in ultrasound but can't be seen in ct scan with contrast?
Yes, because: It had probably passed in the meantime. Small stones generally pass. Most important for you is to prevent recurrence of stones. ...Read more
Could you tell if you had pkd or other kidney problems with a CT scan or ultrasound? Have had same kidney stone for years and I thought theycane out
kidney stones do not "come out" or are a part of the kidney's structure, CT or ULTRASOUND is/are good tests to disclose kidney STONES but are not generally sufficient to study kidney disease which requires blood/urine tests and sometimes renal BIOPSY!
Hope this is helpfu
Dr Z ...Read more
Due to kidney stones I have had 2 ultrasounds, 2 ct's and 1 MRI w/contrast in past year. If I had pancreatic cancer would one of these picked it up?
Whether the: CTs or MRI you had would be sensitive in detecting a small pancreatic cancer would depend on the technical parameters of the scans, so without additional information it is difficult to say. Large tumors would not be missed, small tumors might not be detectable if the scan was tailored for other purposes. ...Read more
Urologist ordered CAT bc blood in urine and an earlier ultrasound that showed 4 kidney stones. What body parts will show up in the CAT scan?
Abdomen and pelvis: The CT scan ordered when a patient has blood in the urine is of the abdomen and pelvis. It will show the kidneys, ureters, bladder and will also incidentally show the liver, lower lobes of lungs and spleen. Normally contrast is given intravenously when checking on urinary bleeding. Best wishes. ...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 more
Micro blood urine weeing about 4 times a night ultra sound CT culture fine 3mm kidney stone left kidney?
Went to ER knowing was kidney stones X-ray I'm fine. Since had ultra sound and ct w/cont now have fractured ribs? How can this be? No fall/blow to ribs
Need more info...: Why & when did you go to ER for x-ray? What is the interval between x-ray & US+CT? . .. More in history? Besides, finding of physical exam is needed. How to unveil the puzzle inside your clinical profile? Follow instructions/ steps described in http://formefirst. Com/eNewsletter06.html; thereby you can surely work with doc to deduce right diagnosis for right care. Best. .. ...Read more
Yes!: Yes- that is exactly how a ct for renal stones should be performed- with oral or IV contrast. ...Read more
My CT scan shows oval shaped 10.9 mm vs 4.5 mm kidney stone in the upper ureter, with a good orientation. What chances of passing?
Unlikely: 11mm stone is very unlikely to pass on its own. Hopefully you are under the care of a urologist. Good luck. ...Read more
Can I tell if kidney stone has transited from ureter to bladder by change in symptoms? CT scan shows a 4mm stone 1.5 CM from bladder.
See answer: The only true accurate means of determining whether a ureteral calculus has passed is to retrieve it by straining your urine. The chance of spontaneous passage of a 4mm stone ~50-60%. Onset of symptoms of urinary urgency, frequency, burning, voiding small volumes usually indicates the stone is at the UVJ (ureter meets bladder). The absence or disappearance of pain does not guarantee stone passage. ...Read more
I have gross hematuria. I think I passed a kidney stone since it's did not show on the last ultrasound. How long does the blood show after stone pass?
Afew days but: The stoen may have passed but continued blood could indicate another stone of some other reason. Yoy need to discuss this with your physician ...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
Small ones: Smaller than may be 5mm.Get a more detailed answer ›
I have kidney stones, but still having pain can it be my appendix? Ct tests show my appendix is good. I have no galbladder or overies full hyst.
Unlikely appendix: As an education for you, an appendix does not usually cause symptoms that last for days without becoming very problematic. When it gets inflamed it becomes a blocked tube and will continue to get bigger until it ruptures. Given this, a normal ct with more than a day of pain makes it unlikely the problem. That being said, the best diagnosis is a personal history and physical exam by a professional! ...Read more
Ultrasound show kidney stone bilateral 4mm in lower pole with pain, blood in urine on and off pain now for a month! How long will it take to pass?
Course is highly...: Variable. With persistent symptoms and known stones it is time to make a plan with your urologist. ...Read more
YES: Sometimes you would need a different test to pick up stones. ...Read more
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
I have consistent kidney stones weekly/monthly but every time I go for a CT they don't show up, what is going on?
CT Stone Protocol: Some ct scans that are done, if not calibrated for thin cuts, may miss symptomatic stones. However, if you are having recurrent symptoms without any proven stones, then i'd look for other answers. Ct, done properly, is about 99% sensitive for stone. The only stones that don't show up on ct are Crixivan (indinavir) stones. If you take that medication, let your doctor know. If not, it's likely not stones. ...Read more
CT scan shows 4mm kidney stone on wall of my kidney. No sign of it passing soon w/o forcing fluids. Will it continue to grow if not passed?
Kidney stone.: If left alone, it is likely to grow. Usually the largest size kidney stone that’ll pass without intervention is 5-6mm. ...Read more
Would a CT scan without contrast for possible kidney stones also show if there were adrenal tumors? Dr said CT was normal.
CT likely would show: Presence go an adrenal tumor unless it was very small. ...Read more
I passed kidney stone still have dull pain in the left kidney passing blood still and protien too ct show no stone anymore creatinine is normal help?
Likely inflammatory: You can have continued symptoms after passage of a kidney stone because the kidney tube (ureter) is inflamed and may still be allowing urine through sluggishly. If your creatinine was normal can try some Motrin or Aleve (naproxen) with food for next couple of days. Also hydrate. If pain continues or worsens then see your urologist ...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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