16 doctors weighed in:

Would it be weird if I passed up a CT scan and requested a sonogram instead to check for kidney stones?

16 doctors weighed in
Dr. Michael Yu
Urology
9 doctors agree

In brief: Not necessarily...

Ct is the most sensitive test to look for kidney stones.
Very small stones or stones outside the kidney (i.e., in the ureters or pelvis) can be missed by ultrasound. If worried about radiation, there is a low dose protocol for ct that can be used to look for stones. The amount of radiation exposure for low dose ct is about the same as a plain x-ray. Ask the imaging center if they perform this.

In brief: Not necessarily...

Ct is the most sensitive test to look for kidney stones.
Very small stones or stones outside the kidney (i.e., in the ureters or pelvis) can be missed by ultrasound. If worried about radiation, there is a low dose protocol for ct that can be used to look for stones. The amount of radiation exposure for low dose ct is about the same as a plain x-ray. Ask the imaging center if they perform this.
Dr. Michael Yu
Dr. Michael Yu
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Dr. Azita Mesbah
Internal Medicine - Nephrology & Dialysis
3 doctors agree

In brief: No

But ct scan is more reliable than sonogram.

In brief: No

But ct scan is more reliable than sonogram.
Dr. Azita Mesbah
Dr. Azita Mesbah
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Dr. David Weinstein
Internal Medicine - Nephrology & Dialysis
2 doctors agree

In brief: No

Ultrasound is a very good test for kidney stones provided they are able to get good images (and less radiation).
Limitations of ultrasound would be obesity.

In brief: No

Ultrasound is a very good test for kidney stones provided they are able to get good images (and less radiation).
Limitations of ultrasound would be obesity.
Dr. David Weinstein
Dr. David Weinstein
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Dr. Ronald Hyde
Internal Medicine
2 doctors agree

In brief: Not necessarily

Kidney stones can be seen on ultrasound and plain xrays at times.

In brief: Not necessarily

Kidney stones can be seen on ultrasound and plain xrays at times.
Dr. Ronald Hyde
Dr. Ronald Hyde
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1 doctor agrees

In brief: No

A kidney ultrasound will see kidney stones but will miss stones already in the kidney tube (ureter).
There is also no radiation with ultrasound as compared to ct scans which are much better for detecting kidney stones but have a lot of radiation associated with the test.

In brief: No

A kidney ultrasound will see kidney stones but will miss stones already in the kidney tube (ureter).
There is also no radiation with ultrasound as compared to ct scans which are much better for detecting kidney stones but have a lot of radiation associated with the test.
Dr. Moez Khorsandi
Dr. Moez Khorsandi
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Dr. Tarek Naguib
Internal Medicine - Nephrology & Dialysis
1 doctor agrees

In brief: No

But having said that a ct scan is better than ultrasound for showing kidney stones and their complications.

In brief: No

But having said that a ct scan is better than ultrasound for showing kidney stones and their complications.
Dr. Tarek Naguib
Dr. Tarek Naguib
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