Abstract
Background
Imaging of the urinary tract and its surrounding tissue still remains challenging, since standard imaging in the urological operation room consists of fluoroscopy and plain X-rays. The combination of a ceiling-mounted X-ray system and a new urological intervention table now allows cross-sectional imaging and 3D reconstruction to be performed in the endourological operation room (Urological Dyna-CT).
Materials and methods
The imaging quality of the Artis Zee Ceiling (Siemens Medical Solutions, Erlangen, Germany) was assessed using slice images of an ex vivo pig kidney model prepared with artificial stones (plaster of Paris). We compared the image quality of three different examination protocols with this model. 3D reconstruction quality was illustrated by means of retrograde filling of one pig`s urinary tract with a diluted contrast medium. Results: Interventional stone detection and localization is possible with a 5 s low-dose Urological Dyna-CT. Detailed imaging of the collecting system by retrograde pyelography is possible with a high image quality.
Conclusion
The combination of an Artis Zee® Ceiling (Siemens Medical Solutions, Erlangen, Germany) with our newly developed urological intervention table we call the Urological Dyna-CT. In addition to such standard procedures as fluoroscopy or plain X-rays, cross-sectional imaging and 3D reconstruction of the urinary tract are possible and provide fast and excellent urological imaging.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bueschen AJ, Lockhart ME (2011) Evolution of urological imaging. Int J Urol 18(2):102–112
Soria F, Delgado MI, Sanchez FM, et al (2009) Effectiveness of three-dimensional fluoroscopy in percutaneous nephrostomy: an animal model study. Urology 73(3): 649–652; discussion 652–644
Akpek S, Brunner T, Benndorf G, Strother C (2005) Three-dimensional imaging and cone beam volume CT in C-arm angiography with flat panel detector. Diagn Interv Radiol 11(1):10–13
Heran NS, Song JK, Namba K, Smith W, Niimi Y, Berenstein A (2006) The utility of Dyna-CT in neuroendovascular procedures. AJNR Am J Neuroradiol 27(2):330–332
Eide KR, Odegard A, Myhre HO, Haraldseth O (2007) Initial observations of endovascular aneurysm repair using Dyna-CT. J Endovasc Ther 14(1):50–53
Kempfert J, Falk V, Schuler G et al (2009) Dyna-CT during minimally invasive off-pump transapical aortic valve implantation. Ann Thorac Surg 88(6):2041
Leschka SC, Babic D, El Shikh S, Wossmann C, Schumacher M, Taschner CA (2012) C-arm cone beam computed tomography needle path overlay for image-guided procedures of the spine and pelvis. Neuroradiology 54(3):215–223
Braak SJ, van Strijen MJ, van Leersum M, van Es HW, van Heesewijk JP (2010) Real-time 3D fluoroscopy guidance during needle interventions: technique, accuracy, and feasibility. AJR Am J Roentgenol 194(5):445–451
Ritter M, Krombach P, Martinschek A, et al (2011) Radiation Exposure During Endourologic Procedures Using Over-the-Table Fluoroscopy Sources. J Endourol, (Epub ahead of print)
Kroeze SG, Huisman M, Verkooijen HM, van Diest PJ, Ruud Bosch JL, van den Bosch MA (2011) Real-time 3D fluoroscopy-guided large core needle biopsy of renal masses: a critical early evaluation according to the IDEAL recommendations. Cardiovasc Intervent Radiol 35(3):680–685
Acknowledgments
A cooperation contract exists with Siemens Health Care Solutions for the development of the intervention table.
Author information
Authors and Affiliations
Corresponding author
Additional information
M. S. Michel and M. Ritter contributed equally.
Rights and permissions
About this article
Cite this article
Michel, M.S., Ritter, M., Wertz, H. et al. The Urological Dyna-CT: ex vivo feasibility study of interventional cross-sectional imaging in the endourological operation room. World J Urol 32, 277–280 (2014). https://doi.org/10.1007/s00345-012-0951-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00345-012-0951-9