The Use of Laser Guidance Reduces Fluoroscopy Time for C-Arm Cone-Beam Computed Tomography-Guided Biopsies.
OBJECTIVE
When using laser guidance for cone-beam computed tomography (CBCT)-guided needle interventions, planned needle paths are visualized to the operator without the need to switch between entry- and progress-view during needle placement. The current study assesses the effect of laser guidance during CBCT-guided biopsies on fluoroscopy and procedure times.


METHODS
Prospective data from 15 CBCT-guided biopsies of 8-65 mm thoracic and abdominal lesions assisted by a ceiling-mounted laser guidance technique were compared to retrospective data of 36 performed CBCT-guided biopsies of lesions >20 mm using the freehand technique. Fluoroscopy time, procedure time, and number of CBCT-scans were recorded. All data are presented as median (ranges).


RESULTS
For biopsies using the freehand technique, more fluoroscopy time was necessary to guide the needle onto the target, 165 s (83-333 s) compared to 87 s (44-190 s) for laser guidance (p < 0.001). Procedure times were shorter for freehand-guided biopsies, 24 min versus 30 min for laser guidance (p < 0.001).


CONCLUSIONS
The use of laser guidance during CBCT-guided biopsies significantly reduces fluoroscopy time.
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands. Maarten.Kroes@radboudumc.nl.
Maarten W
MW
Kroes
Department of Radiology, St. Antonius Hospital, P.O. Box 2500, 3430 EM, Nieuwegein, The Netherlands.
Marco J L
MJ
van Strijen
Department of Radiology, St. Antonius Hospital, P.O. Box 2500, 3430 EM, Nieuwegein, The Netherlands.
Sicco J
SJ
Braak
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
Yvonne L
YL
Hoogeveen
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
Frank
F
de Lange
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
Leo J
LJ
Schultze Kool
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D054893:Cone-Beam Computed Tomography / Q000379:methods*; D005260:Female; D005471:Fluoroscopy / Q000379:methods; D006801:Humans; D061705:Image-Guided Biopsy / Q000379:methods; D007834:Lasers; D008297:Male; D008875:Middle Aged; D015641:Radiography, Interventional / Q000379:methods*; D012189:Retrospective Studies; D013997:Time Factors; D055815:Young Adult
C-arm; Cone-beam CT-guidance; Fluoroscopy time; Laser guidance; Percutaneous biopsy