Single-phase DECT with VNCT compared with three-phase CTU in patients with haematuria
In: European Radiology, Jg. 26 (2016-02-16), S. 3550-3557
Online
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Zugriff:
To retrospectively evaluate the diagnostic performance of single-phase dual-energy CT (DECT) with virtual non-contrast CT (VNCT) compared with three-phase CT urography (CTU) in patients with haematuria. A total of 296 patients underwent three-phase CTU (NCT at 120 kVp; nephrographic phase and excretory phase DECTs at 140 kVp and 80 kVp) owing to haematuria. Diagnostic performances of CT scans were compared for detecting urothelial tumours and urinary stones. Dose-length product (DLP) was compared in relation to single-phase DECT and three-phase CTU Dose-length product (DLP) was compared in relation to single-phase DECT and three-phase CTU. Sensitivity and specificity for tumour were 95 % (19/20) and 98.9 % (273/276) on CTU, 95 % (19/20) and 98.2 % (271/276) on nephrographic phase DECT, and 90 % (18/20) and 98.2 % (271/276) on excretory phase DECT (P > 0.1). Of the 148 stones detected on NCT, 108 (73 %) and 100 (67.6 %) were detected on nephrographic phase and excretory phase VNCTs, respectively. The mean size of stones undetected on nephrographic and excretory VNCTs was measured as 1.5 ± 0.5 mm and 1.6 ± 0.6 mm, respectively. The mean DLPs of three-phase CTU, nephrographic phase DECT and excretory phase DECT were 1076 ± 248 mGy · cm, 410 ± 98 mGy · cm, and 360 ± 87 mGy · cm, respectively (P
Titel: |
Single-phase DECT with VNCT compared with three-phase CTU in patients with haematuria
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Autor/in / Beteiligte Person: | Chan Kyo Kim ; Byung Kwan Park ; Jung Jae Park |
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Zeitschrift: | European Radiology, Jg. 26 (2016-02-16), S. 3550-3557 |
Veröffentlichung: | Springer Science and Business Media LLC, 2016 |
Medientyp: | unknown |
ISSN: | 1432-1084 (print) ; 0938-7994 (print) |
DOI: | 10.1007/s00330-016-4206-9 |
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