Chadia Rizk1, Ghassan Abi Chedid2, Christine Salem3, Jad Farah4. 1. Lebanese Atomic Energy Commission, National Council for Scientific Research, Beirut, 11-8281, Lebanon. c.rizk@laec-cnrs.gov.lb. 2. Department of Neuroradiology, Sacre Coeur Hospital, Baabda, BP, 116, Lebanon. 3. Department of Radiology, Hotel Dieu de France University Medical Center, Saint Joseph University, Beirut, Lebanon. 4. Radiology and Nuclear Medicine Department, Paris-Sud University Hospitals, 94270, Le Kremlin-Bicetre, France.
Abstract
PURPOSE: The purpose of this study is to investigate the parameters that affect the radiation exposure and to establish typical values (TV) based on procedure complexity for cerebral angiography (CA) and brain aneurysm embolization (BAE). METHODS: Clinical parameters and exposure data were retrospectively reviewed for 348 examinations performed between March 2016 and December 2019 at a single specialized neuroradiology center. TV were derived as the median value of the distribution of exposure parameters such as total air kerma area product (PKA,T), air kerma at the patient entrance reference point, fluoroscopy time, and number of frames. A statistical analysis was conducted to investigate the exposure variability with patient's gender, number of treated vessels during CA and patient gender, aneurysm location and dimension, and treatment strategies during BAE. RESULTS: Patient gender was associated with a significant increase in the exposure level for both CA and BAE. For CA, TV were in term of PKA,T of 52 Gycm2 for male vs. 28 Gycm2 for female patients. For BAE, these were 113 Gycm2 for male vs. 75 Gycm2 for female patients. Exposure levels increased significantly with the number of treated vessels in CA. TV were 20 Gycm2 for one vessel vs. 77 Gycm2 for 5-6 vessels CA. For BAE, aneurysm location was also a key factor that affects the patient exposure. TV were 55 Gycm2 for aneurysms grouped in location 1 vs. 105 Gycm2 for those grouped in location 2. CONCLUSION: Male gender, number of treated vessels, and aneurysm location are key parameters affecting patient exposure during CA and BAE procedures.
PURPOSE: The purpose of this study is to investigate the parameters that affect the radiation exposure and to establish typical values (TV) based on procedure complexity for cerebral angiography (CA) and brain aneurysm embolization (BAE). METHODS: Clinical parameters and exposure data were retrospectively reviewed for 348 examinations performed between March 2016 and December 2019 at a single specialized neuroradiology center. TV were derived as the median value of the distribution of exposure parameters such as total air kerma area product (PKA,T), air kerma at the patient entrance reference point, fluoroscopy time, and number of frames. A statistical analysis was conducted to investigate the exposure variability with patient's gender, number of treated vessels during CA and patient gender, aneurysm location and dimension, and treatment strategies during BAE. RESULTS:Patient gender was associated with a significant increase in the exposure level for both CA and BAE. For CA, TV were in term of PKA,T of 52 Gycm2 for male vs. 28 Gycm2 for female patients. For BAE, these were 113 Gycm2 for male vs. 75 Gycm2 for female patients. Exposure levels increased significantly with the number of treated vessels in CA. TV were 20 Gycm2 for one vessel vs. 77 Gycm2 for 5-6 vessels CA. For BAE, aneurysm location was also a key factor that affects the patient exposure. TV were 55 Gycm2 for aneurysms grouped in location 1 vs. 105 Gycm2 for those grouped in location 2. CONCLUSION: Male gender, number of treated vessels, and aneurysm location are key parameters affecting patient exposure during CA and BAE procedures.
Entities:
Keywords:
Neuroradiology procedures; Patient exposure; Radiation protection; Typical value
Authors: A Aroua; H Rickli; J-C Stauffer; P Schnyder; P R Trueb; J-F Valley; P Vock; F R Verdun Journal: Eur Radiol Date: 2006-10-27 Impact factor: 5.315
Authors: S Balter; D L Miller; E Vano; P Ortiz Lopez; G Bernardi; E Cotelo; K Faulkner; R Nowotny; R Padovani; A Ramirez Journal: Med Phys Date: 2008-02 Impact factor: 4.071
Authors: E Vañó; D L Miller; C J Martin; M M Rehani; K Kang; M Rosenstein; P Ortiz-López; S Mattsson; R Padovani; A Rogers Journal: Ann ICRP Date: 2017-10
Authors: R Ruiz-Cruces; E Vano; F Carrera-Magariño; F Moreno-Rodriguez; M M Soler-Cantos; M Canis-Lopez; J Hernández-Armas; F J Diaz-Romero; F Rosales-Espizua; J M Fernandez-Soto; R Sanchez-Casanueva; A Martin-Palanca; M Perez-Martinez; A Gil-Agudo; M A Zarca-Diaz; V Parra-Osorio; J J Muñoz Ruiz-Canela; T Moreno-Sanchez; A Lopez-Medina; C Moreno-Saiz; P Galan-Montenegro; J J Gallego-Beuter; M Gonzalez-de-Garay; J C Zapata-Jimenez; J M Pastor-Vega; S Cañete Journal: Eur Radiol Date: 2016-07-06 Impact factor: 5.315