Kidney stone CT: Difference between revisions

Jump to navigation Jump to search
No edit summary
No edit summary
 
(6 intermediate revisions by 4 users not shown)
Line 1: Line 1:
__NOTOC__
__NOTOC__
{{Kidney stone}}
{{Kidney stone}}
{{CMG}}
{{CMG}}; {{AE}} {{ADS}}


==Overview==
==Overview==
Abdominal and pelvic CT scan is helpful in the diagnosis of nephrolithiasis. Findings on CT scan diagnostic of nephrolithiasis include radiopacity showing the location, density and composition of stones [[calcium oxalate]] +/- [[calcium phosphate]]: 400-600 HU, [[struvite]] (triple phosphate): usually opaque but variable, pure [[calcium phosphate]] 400-600 HU, [[uric acid]]: 100-200 HU and [[cystine]]: opaque.
==CT scan==
==CT scan==
[[Computed tomography]] (CT or CAT scan), a specialized X-ray, is considered the gold-standard diagnostic test for the detection of kidney stones, and in this setting does not require the use of intravenous contrast, which carries some risk in certain people (eg, allergy, kidney damage).  All stones are detectable by CT except very rare stones composed of certain drug residues in the urine. The non-contrast "renal colic study" CT scan has become the standard test for the immediate diagnosis of flank pain typical of a kidney stone.  If positive for stones, a single standard x-ray of the abdomen (KUB) is recommended.  This additional x-ray provides the physicians with a clearer idea of the exact size and shape of the stone as well as its surgical orientation.  Further, it makes it simple to follow the progress of the stone without the need for the much more expensive CT scan just by doing another single x-ray at some point in the future.
*Abdominal and pelvic CT scan may be helpful in the diagnosis of nephrolithiasis. Findings on CT scan diagnostic of nephrolithiasis include:
**Radiopacity showing the location, density and composition of stones:
***[[Calcium oxalate]] +/- calcium phosphate: 400-600 HU
***[[Struvite]] (triple phosphate): usually opaque but variable
***Pure [[Calcium phosphate|calcium phosphate:]] 400-600 HU
***[[Uric acid]]: 100-200 HU
***[[Cystine]]: opaque
 


'''Patient #1: CT image demonstrates a jackstone calculus'''
'''Patient #1: CT Image Demonstrates a Jackstone Calculus'''
<gallery>
<gallery>
Image:
Image:
Line 15: Line 25:
</gallery>
</gallery>


'''Patient #2: CT images demonstrates bilateral staghorn calculi'''
'''Patient #2: CT Images Demonstrates Bilateral Staghorn Calculi'''
<gallery>
<gallery>
Image:
Image:
Line 27: Line 37:
</gallery>
</gallery>


'''Patient #3: CT images demonstrates left-sided staghorn calculi'''
'''Patient #3: CT Images Demonstrates Left-sided Staghorn Calculi'''


<gallery>
<gallery>
Line 39: Line 49:


</gallery>
</gallery>
==References==
==References==
{{reflist|2}}
{{Reflist|2}}


{{WH}}
{{WH}}
{{WS}}
{{WS}}
[[Category:Kidney diseases]]
[[Category: (name of the system)]]
[[Category:Urology]]
[[Category:Nephrology]]

Latest revision as of 07:07, 22 June 2018

Kidney stone Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Kidney stone from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

X Ray

Ultrasonography

CT

MRI

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Kidney stone CT On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Kidney stone CT

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

National Guidelines Clearinghouse

NICE Guidance

FDA on Kidney stone CT

CDC on Kidney stone CT

Kidney stone CT in the news

Blogs onKidney stone CT

Directions to Hospitals Treating Kidney stone

Risk calculators and risk factors for Kidney stone CT

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Amandeep Singh M.D.[2]

Overview

Abdominal and pelvic CT scan is helpful in the diagnosis of nephrolithiasis. Findings on CT scan diagnostic of nephrolithiasis include radiopacity showing the location, density and composition of stones calcium oxalate +/- calcium phosphate: 400-600 HU, struvite (triple phosphate): usually opaque but variable, pure calcium phosphate 400-600 HU, uric acid: 100-200 HU and cystine: opaque.

CT scan

  • Abdominal and pelvic CT scan may be helpful in the diagnosis of nephrolithiasis. Findings on CT scan diagnostic of nephrolithiasis include:


Patient #1: CT Image Demonstrates a Jackstone Calculus

Patient #2: CT Images Demonstrates Bilateral Staghorn Calculi

Patient #3: CT Images Demonstrates Left-sided Staghorn Calculi

References

Template:WH Template:WS