EXCRETORY PHASE CT UROGRAPHY: MODIFIED TECHNIQUE FOR IMPROVE URINARY COLLECTING SYSTEM DISTENTION AND DECREASE DENSITY OF EXCRETED CONTRAST.

Authors

  • Kobkun MUANGSOMBOON Department of Radiology Faculty of Medicine Siriraj Hospital Mahidol University
  • Steven S RAMAN Department of Radiology Center for the Health Sciences David Geffen School of Medicine at UCLA Los Angeles
  • Kenneth DAUGHTERS Department of Radiology Center for the Health Sciences David Geffen School of Medicine at UCLA Los Angeles
  • Madh KRISHNAN Department of Radiology Center for the Health Sciences David Geffen School of Medicine at UCLA Los Angeles
  • Suwalee POSCHAMARNWIPUTH Department of Radiology Faculty of Medicine Chiangmai University
  • Young Jun Kim Department of Radiology Center for the Health Sciences David Geffen School of Medicine at UCLA Los Angeles
  • David S.K. Lu Department of Radiology Center for the Health Sciences David Geffen School of Medicine at UCLA Los Angeles

Abstract

Purpose: To determine if oral water with and without combined intravenous saline infusion and body rotation improved imaging of the urinary collecting system on excretory phase multi-detector CT urography.

Materials and Methods: 42 consecutive renal donors underwent 1 6-detector CT urography. The excretory phase imaging was performed 400 seconds after intravenous contrast injection either with conventional supine technique (n=17) or modified technique (n=25; after intravenous injection of 250 ml of 0.9% saline and body rotation). Two radiologists retrospectively reviewed blindly and independently scored, 1) degree of distention of collecting system, 2) degree of opacification. Bladder volume was calculated.

Results: The modified cohort had significantly improved distention scores in the intrarenal segments (p<0.05) and bladder (p<0.005) and larger mean bladder volume (p<0.001) as well as significantly higher mean opacification quality scores in the modified cohort (p<0.005).

Conclusion: A significantly improved excretory-phase CT urogram was obtained by intravenous saline infusion and body rotation.

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References

MeNicholas Nm, Raptopoulos VD, Schwartz RK, et al. Excretory phase CT urography for opacification of the urinary collecting system. AJR 1998; 170:1261-1267

Chow LC, Sommer FG. Multidetector CT urography with abdominal compression and three dimentional reconstruction. AJR 2001; 177: 849-855

Hamby WM, Kirsh IE. Urography with ureteral occlusion. JAMA 1964; 189:582-584

Heneghan JP, Kim DH, Leder RA, Delong D, Nelson RC. Compression CT urography; a comparison with [VU in the opacification of the collecting system and ureters. J Comput Assist Tomogr 2001; 25: 343-347

Caoili EM, Imaging of the urinary tract using multidetector computed tomography urography. Semin Urol Oncol 2002; 20: 274-179

Caoili EM, Cohan RH, Korobkin M, et al. Uninary tract abnormalities: initial experience with multidetector low CT urography. Radiology 2002; 222: 353-360

McTavish JD, Jinzaki M, Zou KH, Nawfel RD, Silverman SG. Multi-Detector Row CT Urography: Comparison of Strategies for depicting the Normal Urinary Collecting System. Radiology 2002; 225:783-790

Caoili EM, Inampudi P, Cohn RH, Ellis JH. Optimizing of multi-detector row CT urography: Effect of compression, saline administration and prolongation of acquisition delay. Radiology 2005; 235(1):116-23.

Epub 2005 Feb 16 Nolte-Ernsting CC, Wildberger JE, Borchers H, Schmitz-Rode T, Gunther RW. Multi-slice CT urography after diuretic injection: initial results. Rofo Fortschr Geb Rontgenstr Neuen Bildgeb Verfahr 2001; 173: 176-80.

Kawashima A, Vrtiska TF, Leroy AF, et al. CT urography. Radiographics 2004, 24: S35- S54

Sheth S, Fishman EK. Multi-detector row CT of the kidney and urinary tract: Techniques and applications in the diagnosis of benign Disease.

Radiographics Epub 2004 January 16 Raptopoulos VD and McNamera A. Improved pelvicalyceal visualization and multidetector computed tomography urography, comparison with helicalcomputed tomography. Eur radiol Epub 2005 March 11

Harrow BR, Sloane JA. Compression and Nephrographic effects during intravenous urography. Med Times 1963;91:1203-1211

Dunbar JS, MacEwan DW, Herbert F. The value of dehydration in intravenous pyelography: an experimental study. Am J Roentgenol Radium Ther Nucl Med 1960; 84: 813-836

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Published

2023-09-07

How to Cite

1.
MUANGSOMBOON K, S RAMAN S, DAUGHTERS K, KRISHNAN M, POSCHAMARNWIPUTH S, Jun Kim Y, et al. EXCRETORY PHASE CT UROGRAPHY: MODIFIED TECHNIQUE FOR IMPROVE URINARY COLLECTING SYSTEM DISTENTION AND DECREASE DENSITY OF EXCRETED CONTRAST. ASEAN J Radiol [Internet]. 2023 Sep. 7 [cited 2024 Dec. 8];13(1):1-10. Available from: https://asean-journal-radiology.org/index.php/ajr/article/view/779

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