Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, Colombia
Objective: In the approach and diagnosis of urinary stone disease, computed tomography (CT)-scan with a focus on the urinary tract is the gold standard. However, renal ultrasonography may be more cost-effective and faster in some settings. Renal ultrasonography has been considered as an alternative...
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Sociedad Colombiana de Urología
2024-07-01
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| Series: | Urología Colombiana |
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| Online Access: | https://www.urologiacolombiana.com/frame_eng.php?id=49 |
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| author | Hugo López Juliana Arenas María P. Torres Alejandra Niño-Alarcón |
| author_facet | Hugo López Juliana Arenas María P. Torres Alejandra Niño-Alarcón |
| author_sort | Hugo López |
| collection | DOAJ |
| description | Objective: In the approach and diagnosis of urinary stone disease, computed tomography (CT)-scan with a focus on the urinary tract is the gold standard. However, renal ultrasonography may be more cost-effective and faster in some settings. Renal ultrasonography has been considered as an alternative in the emergency protocols of some institutions and studies. The objective of this research is to make a study of diagnostic concordance between urinary tract ultrasound and non-contrast CT in a fourth-level center in Bogotá. Method: Retrospectively, a base is developed with a sample of all the patients who were taken to non-contrast CT and renal ultrasound at the same time for a clinical course suggestive of stone disease. All patients between the period January 2011 and December 2015 with both tests were selected. Data were collected from each of the official reports. A Cohen’s Kappa test was performed to evaluate the diagnostic concordance between the variables used. Results: A sample of 269 patients who underwent simultaneous non-contrast CT and renal ultrasound was collected. Diagnosis of lithiasis was 80.3% CT-KUB versus 44.03% US kappa = 0.29. The kappa value for the size of the largest stone diagnosed between the two images was 0.458. For the location of the largest stone diagnosed between the two images, it was 0.54. For obstruction and degree of obstruction, the kappa correlation value between images was 0.42. Finally, for the number of stones, the kappa correlation value was 0.37. Conclusion: Non-contrast CT should be the imaging of choice considering its diagnostic values.
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| format | Article |
| id | doaj-art-a00f2209c2e44e1abf05fccd7419f1ca |
| institution | OA Journals |
| issn | 0120-789X |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Sociedad Colombiana de Urología |
| record_format | Article |
| series | Urología Colombiana |
| spelling | doaj-art-a00f2209c2e44e1abf05fccd7419f1ca2025-08-20T02:23:04ZengSociedad Colombiana de UrologíaUrología Colombiana0120-789X2024-07-01333Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, ColombiaHugo López0Juliana Arenas1María P. Torres2Alejandra Niño-Alarcón3Department of Urology, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, ColombiaDepartment of Urology, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, ColombiaFaculty of Medicine, Pontificia Universidad Javeriana, Bogotá, ColombiaFaculty of Medicine, Pontificia Universidad Javeriana, Bogotá, ColombiaObjective: In the approach and diagnosis of urinary stone disease, computed tomography (CT)-scan with a focus on the urinary tract is the gold standard. However, renal ultrasonography may be more cost-effective and faster in some settings. Renal ultrasonography has been considered as an alternative in the emergency protocols of some institutions and studies. The objective of this research is to make a study of diagnostic concordance between urinary tract ultrasound and non-contrast CT in a fourth-level center in Bogotá. Method: Retrospectively, a base is developed with a sample of all the patients who were taken to non-contrast CT and renal ultrasound at the same time for a clinical course suggestive of stone disease. All patients between the period January 2011 and December 2015 with both tests were selected. Data were collected from each of the official reports. A Cohen’s Kappa test was performed to evaluate the diagnostic concordance between the variables used. Results: A sample of 269 patients who underwent simultaneous non-contrast CT and renal ultrasound was collected. Diagnosis of lithiasis was 80.3% CT-KUB versus 44.03% US kappa = 0.29. The kappa value for the size of the largest stone diagnosed between the two images was 0.458. For the location of the largest stone diagnosed between the two images, it was 0.54. For obstruction and degree of obstruction, the kappa correlation value between images was 0.42. Finally, for the number of stones, the kappa correlation value was 0.37. Conclusion: Non-contrast CT should be the imaging of choice considering its diagnostic values. https://www.urologiacolombiana.com/frame_eng.php?id=49Urolithiasis. Non-contrast computed tomography. Urinary tract ultrasound. Diagnostic tests. |
| spellingShingle | Hugo López Juliana Arenas María P. Torres Alejandra Niño-Alarcón Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, Colombia Urología Colombiana Urolithiasis. Non-contrast computed tomography. Urinary tract ultrasound. Diagnostic tests. |
| title | Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, Colombia |
| title_full | Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, Colombia |
| title_fullStr | Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, Colombia |
| title_full_unstemmed | Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, Colombia |
| title_short | Concordance of diagnostic tests, ultrasound of urinary tract versus non-contrast CT in urolithiasis in a four-level center in Bogotá, Colombia |
| title_sort | concordance of diagnostic tests ultrasound of urinary tract versus non contrast ct in urolithiasis in a four level center in bogota colombia |
| topic | Urolithiasis. Non-contrast computed tomography. Urinary tract ultrasound. Diagnostic tests. |
| url | https://www.urologiacolombiana.com/frame_eng.php?id=49 |
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