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- W2585787986 abstract "To evaluate and compare the outcome of adrenal vein sampling (AVS) with and without additional cone-beam CT (CBCT) acquisitions in a low-volume center. 50 patients (19f, 31m; median age 52y), referred for AVS were included in this retrospective IRB-approved study. Diagnostic tools for AVS included fluoroscopy, CBCT and online cortisol measurements. Patients were divided into group 1 before (n = 15) and group 2 after (n = 35) CBCT became available in our department. In group 2 CBCT acquisitions using retrograde selective contrast injection were performed at the discretion of the performing radiologist (subgroup 2a; n = 21); in the remaining 14 patients, no CBCT was acquired (subgroup 2b). Fluoroscopy time, dose-area product (DAP) and technical success rates were calculated and compared separately for the right and left adrenal vein (Mann-Whitney-Test, Fisher exact test). Selectivity, lateralization and contralateral suppression indexes were calculated based on the blood samples. Overall fluoroscopy time (mean group 1 and 2: 44:55 and 27:33min) and DAP (mean group 1 and 2: 8316 and 5203 Gyxcm2) were significantly lower after CBCT availability (p = 0.0004 and p = 0.0177); success rates for the right and left renal vein were similar (right 60% and 66%; left 87% and 77%). At subgroup analysis (2a vs. 2b), implementation of CBCT increased technical success rates for the right and left adrenal vein (right 76% vs. 50%; left 81% vs. 71%; p>0.05). However, CBCT acquisitions resulted in a marked increase of the DAP (mean 7358 Gyxcm2). CBCT is a useful additional tool in the radiologist’s armamentarium for AVS, improving technical success of the procedure. However, scans should be acquired cautiously at the radiologist’s discretion and only if needed due to a marked increase of radiation dose." @default.
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- W2585787986 date "2017-02-01" @default.
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- W2585787986 title "Value of additional cone-beam CT acquisitions for adrenal vein sampling" @default.
- W2585787986 doi "https://doi.org/10.1016/j.jvir.2016.12.937" @default.
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