Surgeon, staff, and patient radiation exposure in minimally invasive transforaminal lumbar interbody fusion: impact of 3D fluoroscopy-based navigation partially replacing conventional fluoroscopy: study protocol for a randomized controlled trial

Table 2 Survey of the intraoperative dosimeter setup

	Location	Dosimeter type	Dosimeter lead protected?
Surgeon	Left ring finger	Ring dosimeter	Unprotected
	Right ring finger	Ring dosimeter	Unprotected
	Middle forehead	Eye lens dosimeter	Unprotected
	Under lead goggles (left glass)	Eye lens dosimeter	Protected
	Thyroid gland, above lead shield	Film dosimeter	Unprotected
	Thyroid gland, under lead shield	Film dosimeter	Protected
	Left chest, above lead apron	Film dosimeter	Unprotected
	Left chest, under lead apron	Film dosimeter	Protected
	Gonad, under lead apron	Film dosimeter	Protected
	Right knee, under lead apron	Film dosimeter	Protected
	Back, between shoulder blades, above lead apron	Film dosimeter	Unprotected
Assistant surgeon	Middle forehead	Eye lens dosimeter	Unprotected
	Left chest, above lead apron	Film dosimeter	Unprotected
	Left chest, under lead apron	Film dosimeter	Protected
Scrub nurse	Middle forehead	Eye lens dosimeter	Unprotected
	Left chest, above lead apron	Film dosimeter	Unprotected
	Left chest, under lead apron	Film dosimeter	Protected
Anesthetist	Left chest, above lead apron	Film dosimeter	Unprotected
	Left chest, under lead apron	Film dosimeter	Protected
Patient	Thyroid gland	Film dosimeter	Unprotected
	Chest	Film dosimeter	Unprotected
	Gonad	Film dosimeter	Unprotected
C-arm	Next to generator	EPD	Unprotected
	Next to generator	Film dosimeter^a	Unprotected
	Next to flat panel detector	Film dosimeter^a	Unprotected

^aFilm dosimeters on the C-arm are removed during the three-dimensional (3D) scan (NAV group, three-dimensional fluoroscopy-based navigation group) since the staff is outside the operating room during the 3D scan. EPD, electronic personal dosimeter.

ISSN: 1745-6215