Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Wehrschuetz, M; Gallé, G; Wehrschuetz, E; Sorantin, E; Schaffler, G.
Thick curved planar reformation of unenhanced multislice computed tomography demonstrating urolithiasis.
Urology. 2009; 74(3): 528-530.
Doi: 10.1016/j.urology.2008.12.025
Web of Science
PubMed
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FullText_MUG
- Führende Autor*innen der Med Uni Graz
- Wehrschütz Martin
- Co-Autor*innen der Med Uni Graz
- Sorantin Erich
- Wehrschütz Eva
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- Abstract:
- OBJECTIVES: To determine what slice thickness provides optimal curved planar reformation (CPR) images of the urinary tract. METHODS: A total of 75 consecutive patients with acute flank pain were included in a retrospective pilot study and underwent unenhanced multislice computed tomography (MSCT) (collimation 3.75 mm, pitch 6, reconstruction increment 3 mm, working voltage 120 kV, and tube current 100 mA) with CPR reconstruction of the urinary tract. CPRs with differing slice thicknesses of 3-20 mm at 1-mm increments to reformat each ureter were assessed in each patient separately. Two radiologists and a urologist evaluated the quality of the reformatted images by judging each ureter in terms of the delineation of all its parts using a 5-point scale (insufficient, poor, moderate, good, and excellent). RESULTS: Of the 75 patients in our cohort, 52 (69%) had urolithiasis. CPR images could be made of all ureters in all patients. Good to excellent image quality was found in the CPRs performed with a slice thickness of 8-12 mm: 27.7% at 8 mm, 14.3% at 9 mm, 26.9% at 10 mm, 12.6% at 11 mm, and 18.5% at 12 mm. Thus, a slice thickness of 8-12 mm determined a cumulative likelihood of 96.7% to demonstrate the ureter totally. CONCLUSIONS: The results of our study have shown that CPR is a feasible and quick useful tool. CPRs of the urinary tract with a slice thickness of 8-12 mm are best for good delineation of the whole ureter.
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- Tomography, X-Ray Computed - methods
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