Difference between revisions of "CT in recurrent kidney stone disease"
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==Evaluation== | ==Evaluation== | ||
| − | *Locations and sizes of stones. Optionally, stone morphology | + | *Locations and sizes of stones. Optionally, stone morphology can be evaluated to give clues about composition.<ref name="TiseliusDaudon2017">{{cite journal|last1=Tiselius|first1=Hans-Göran|last2=Daudon|first2=Michel|last3=Thomas|first3=Kay|last4=Seitz|first4=Christian|title=Metabolic Work-up of Patients with Urolithiasis: Indications and Diagnostic Algorithm|journal=European Urology Focus|volume=3|issue=1|year=2017|pages=62–71|issn=24054569|doi=10.1016/j.euf.2017.03.014}}</ref> |
*Any hydronephrosis. | *Any hydronephrosis. | ||
| − | *Any structural abnormalities of the urinary system, such as s tubular ectasia in medullary sponge kidney and | + | *Any structural abnormalities of the urinary system, such as s tubular ectasia in medullary sponge kidney and nephrocalcinosis.<ref name="TiseliusDaudon2017"/> |
| − | nephrocalcinosis. | ||
<gallery mode=packed heights=230> | <gallery mode=packed heights=230> | ||
File:CT measurement of kidney stone in soft tissue and bone window.jpg|Measurement of a 5.6 mm large kidney stone in soft tissue window (at left, with width of 400 HU, and center at 50 HU) versus skeletal window (right, W1800,C400). 145 HU is regarded as an appropriate cutoff to distinguish a stone from surrounding tissue.<ref name="LidénThunberg2015">{{cite journal|last1=Lidén|first1=Mats|last2=Thunberg|first2=Per|last3=Broxvall|first3=Mathias|last4=Geijer|first4=Håkan|title=Two- and three-dimensional CT measurements of urinary calculi length and width: a comparative study|journal=Acta Radiologica|volume=56|issue=4|year=2015|pages=487–492|issn=0284-1851|doi=10.1177/0284185114528490}}</ref> | File:CT measurement of kidney stone in soft tissue and bone window.jpg|Measurement of a 5.6 mm large kidney stone in soft tissue window (at left, with width of 400 HU, and center at 50 HU) versus skeletal window (right, W1800,C400). 145 HU is regarded as an appropriate cutoff to distinguish a stone from surrounding tissue.<ref name="LidénThunberg2015">{{cite journal|last1=Lidén|first1=Mats|last2=Thunberg|first2=Per|last3=Broxvall|first3=Mathias|last4=Geijer|first4=Håkan|title=Two- and three-dimensional CT measurements of urinary calculi length and width: a comparative study|journal=Acta Radiologica|volume=56|issue=4|year=2015|pages=487–492|issn=0284-1851|doi=10.1177/0284185114528490}}</ref> | ||
</gallery> | </gallery> | ||
{{Bottom}} | {{Bottom}} | ||
Revision as of 14:25, 8 November 2018
Author:
Mikael Häggström [notes 1]
Contents
Planning
- Low-dose CT without intravenous contrast
Evaluation
- Locations and sizes of stones. Optionally, stone morphology can be evaluated to give clues about composition.[1]
- Any hydronephrosis.
- Any structural abnormalities of the urinary system, such as s tubular ectasia in medullary sponge kidney and nephrocalcinosis.[1]
Measurement of a 5.6 mm large kidney stone in soft tissue window (at left, with width of 400 HU, and center at 50 HU) versus skeletal window (right, W1800,C400). 145 HU is regarded as an appropriate cutoff to distinguish a stone from surrounding tissue.[2]
Notes
- ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.
References
- ↑ 1.0 1.1 Tiselius, Hans-Göran; Daudon, Michel; Thomas, Kay; Seitz, Christian (2017). "Metabolic Work-up of Patients with Urolithiasis: Indications and Diagnostic Algorithm ". European Urology Focus 3 (1): 62–71. doi:. ISSN 24054569.
- ↑ Lidén, Mats; Thunberg, Per; Broxvall, Mathias; Geijer, Håkan (2015). "Two- and three-dimensional CT measurements of urinary calculi length and width: a comparative study ". Acta Radiologica 56 (4): 487–492. doi:. ISSN 0284-1851.
