Keywords:
Radiation physics, Radioprotection / Radiation dose, Fluoroscopy, Angioplasty, Chemoembolisation, Vertebroplasty, Dosimetric comparison
Authors:
M. Psarras1, A. Ploussi1, S. C. Spiliopoulos1, K. Palialexis1, L. Reppas1, A. D. Kelekis1, D. K. Filippiadis1, E. Efstathopoulos1, I. Seimenis2; 1Athens/GR, 2Alexandroupolis/GR
DOI:
10.26044/ecr2019/C-2248
Methods and materials
♦ Study period: November 2017 - February 2018
♦Study department: 2nd Department of Radiology,
Attikon University Hospital,
Athens,
Greece
♦ Study system: Flat-panel fluoroscopy system
♦ Number of interventional radiology procedures studied: 98
- lower-limb percutaneous transluminal angioplasties (PTA LL): 70
- embolizations/chemoembolizations: 15
- vertebroplasties: 13
♦ Number of IR groups involved: 2 (see Tables 1 and 2)
♦Radiation dose measurements: LiF:Mg,
Ti thermoluminescent dosimeters (TLDs).
In more detail:
- TLDs were calibrated in terms of the equivalent dose at 3 mm depth,
Hp(3) for the eye lens and in terms of the equivalent dose at 0.07 mm depth,
Hp (0.07) for the head [10,
11]
- The calibration was performed using the reference radiation quality beam RQR-9 (IEC 61267) [12]
- A set of 7 TLDs was attributed to each participating IR for each type of procedure
- 4 TLDs were attached to the forehead and 3 onto the lead glasses as presented in Figure 1.
Table 1. Group A: 4 IRs (#1 - #4)
PTA LL
|
IR #1
|
26 years of experience
|
13 procedures
|
Primary
physician
|
IR #2
|
12 years of experience
|
19
procedures
|
Primary
physician
|
IR #3
|
8 years of experience
|
21
procedures
|
Primary physician
|
IR #4
|
6.5 years of experience
|
17
procedures
|
Primary physician
|
Embolization/
Chemoembolization
|
IR #1
|
26 years of experience
|
15
procedures
|
Primary physician
|
IR #2
|
12 years of experience
|
5
procedures
|
Assistant physician
|
IR #3
|
8 years of experience
|
8
procedures
|
Assistant physician
|
IR #4
|
6.5 years of experience
|
3
procedures
|
Assistant physician
|
Table 2. Group B: 2 IRs (#5 & #6)
Vertebroplasty
|
IR #5
|
18 years of experience
|
13
procedures
|
Primary physician
|
IR #6
|
9 years of experience
|
12
procedures
|
Assistant physician
|