Matthias Barral1, François Gardavaud1, Louis Lassalle2, Mohamed Ben Ammar1, Milan Najdawi1, Léo Razakamanantsoa1, Raphaele Renard-Penna3, Olivier Cussenot4, François H Cornelis5. 1. Department of Interventional Radiology and Oncology, Tenon Hospital, Sorbonne Université, 4 Rue de la Chine, 75020, Paris, France. 2. Department of Radiology, Cochin Hospital, Université de Paris, 27 Rue du Faubourg Saint-Jacques, 75014, Paris, France. 3. Department of Radiology, Tenon Hospital, Sorbonne Université, 4 Rue de la Chine, 75020, Paris, France. 4. Department of Urology, Tenon Hospital, Sorbonne Université, 4 Rue de la Chine, 75020, Paris, France. 5. Department of Interventional Radiology and Oncology, Tenon Hospital, Sorbonne Université, 4 Rue de la Chine, 75020, Paris, France. francois.cornelis@aphp.fr.
Abstract
OBJECTIVE: To assess the influence of patient characteristics, anatomical conditions, and technical factors on radiation exposure during prostatic arteries embolization (PAE) performed for benign prostatic hyperplasia. MATERIALS AND METHODS: Patient characteristics (age, body mass index (BMI)), anatomical conditions (number of prostatic arteries, anastomosis), and technical factors (use of cone beam computed tomography (CBCT), large display monitor (LDM), and magnification) were recorded as well as total air kerma (AK), dose area product (DAP), fluoroscopy time (FT), and number of acquisitions (NAcq). Associations between potential dose-influencing factors and AK using univariate analysis and a multiple linear regression model were assessed. RESULTS: Forty-one consecutive men (68 ± 8 years, min-max: 40-76) were included. LDM and CBCT decreased the use of small field of view with 13.9 and 3.8% respectively, both p < 0.001. The use of a LDM significantly reduced AK (1006.6 ± 471.7 vs. 1412 ± 754.6 mGy, p = 0.02), DAP (119.4 ± 64.4 vs. 167.9 ± 99.2, p = 0.04), FT (40.4 ± 11.5 vs. 53.6 ± 25.5 min, p = 0.01), and NAcq (16.3 ± 6.3 vs. 18.2 ± 7, p = 0.04). In multivariate analysis, AK reduction was associated with lower patient BMI (β = 0.359, p = 0.002), shorter FT (β = 0.664, p < 0.001) and CBCT use (β = - 0.223, p = 0.03), and decreased NAcq (β = 0.229, p = 0.04). CONCLUSION: LDM and CBCT are important technical dose-related factors to help reduce radiation exposure during PAE, and should be considered in standard practice. KEY POINTS: • The use of large display monitor (LDM) and cone beam computed tomography (CBCT) both decreased the need for magnification during prostatic arteries embolization (PAE). • The use of LDM reduces radiation exposure during PAE. • Total air kerma is associated with patient's body mass index, fluoroscopy time, CBCT, and the number of acquisitions.
OBJECTIVE: To assess the influence of patient characteristics, anatomical conditions, and technical factors on radiation exposure during prostatic arteries embolization (PAE) performed for benign prostatic hyperplasia. MATERIALS AND METHODS:Patient characteristics (age, body mass index (BMI)), anatomical conditions (number of prostatic arteries, anastomosis), and technical factors (use of cone beam computed tomography (CBCT), large display monitor (LDM), and magnification) were recorded as well as total air kerma (AK), dose area product (DAP), fluoroscopy time (FT), and number of acquisitions (NAcq). Associations between potential dose-influencing factors and AK using univariate analysis and a multiple linear regression model were assessed. RESULTS: Forty-one consecutive men (68 ± 8 years, min-max: 40-76) were included. LDM and CBCT decreased the use of small field of view with 13.9 and 3.8% respectively, both p < 0.001. The use of a LDM significantly reduced AK (1006.6 ± 471.7 vs. 1412 ± 754.6 mGy, p = 0.02), DAP (119.4 ± 64.4 vs. 167.9 ± 99.2, p = 0.04), FT (40.4 ± 11.5 vs. 53.6 ± 25.5 min, p = 0.01), and NAcq (16.3 ± 6.3 vs. 18.2 ± 7, p = 0.04). In multivariate analysis, AK reduction was associated with lower patient BMI (β = 0.359, p = 0.002), shorter FT (β = 0.664, p < 0.001) and CBCT use (β = - 0.223, p = 0.03), and decreased NAcq (β = 0.229, p = 0.04). CONCLUSION: LDM and CBCT are important technical dose-related factors to help reduce radiation exposure during PAE, and should be considered in standard practice. KEY POINTS: • The use of large display monitor (LDM) and cone beam computed tomography (CBCT) both decreased the need for magnification during prostatic arteries embolization (PAE). • The use of LDM reduces radiation exposure during PAE. • Total air kerma is associated with patient's body mass index, fluoroscopy time, CBCT, and the number of acquisitions.
Authors: Petra Svarc; Thijs Hagen; Hanne Waltenburg; Christian Andersson; Mats Bläckberg; Eduard Baco; Mikkel Taudorf; Martin Andreas Røder; Hans Lindgren; Nils-Einar Kløw; Lars Birger Lönn Journal: Eur Radiol Date: 2021-11-16 Impact factor: 5.315