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Table 1 Procedural steps and involvement staff of both ablation methods

From: Activity-based cost analysis of hepatic tumor ablation using CT-guided high-dose rate brachytherapy or CT-guided radiofrequency ablation in hepatocellular carcinoma

  CT-HDRBT CT-RFA
  Minutes StaffCode Minutes Staff Code
Preparation
 Patient registration 3 ± 0.7 TECH 3 ± 0.63 TECH
 Preparation of sterile intervention table 8 ± 1.2 N   
 Preparation of sterile intervention table, instruments, and RFA device    12 ± 1.41 N
 Patient positioning, unenhanced localizer scan 8a ± 1.6 TECH 12a ± 0.89 TECH
N N
 Placement of sterile drapes & disinfection 10a ± 1.2 N 10a ± 1.41 N
TECH TECH
 Review of images, final check-up 5 ± 1.1 INT-RAD 5 ± 0.63 INT-RAD
CT-Intervention
 Induction of conscious sedation 3a ± 0.5 PHYS 3a ± 0 PHYS
N N
TECH
 Instrument guidance and positioning of brachytherapy catheters 14a ± 2.4 INT-RAD   
N
TECH
 Instrument guidance and positioning of RFA probe    14a ± 0.89 INT-RAD
N
TECH
 RFA treatment    22 a ± 4.56 INT-RAD
N
TECH
 Contrast-enhanced CT scan + assessment 5a ± 0.7 INT-RAD 5a ± 0.63 INT-RAD
N N
TECH TECH
 Patient monitoring during intervention and postprocedural scan 19 ± 2.7 PHYS 44 ± 4.73 PHYS
 Transfer to brachytherapy suite 10 ± 1.2 PHYS   
N
 Radiotherapy planning 15 ± 1.5 INT-RAD   
RO
MPE
 Radiotherapy 25 ± 6.2 MPE   
 Patient monitoring during radiotherapy 25 ± 6.2 PHYS   
N
Postprocedural Management
 Retraction of brachytherapy catheters, tract sealing, and removal of sterile drapes 10 ± 1.5 PHYS   
N
 Removal of sterile drapes and transfer to recovery room    7 ± 1.26 PHYS
TECH
N
 Transfer to recovery room 10 ± 1.5 PHYS   
N
 Monitoring in recovery room 90 ± 11.1 N 90 ± 6.32 N
 Documentation and clearance 8 ± 1.4 TECH 8 ± 1.4 TECH
 Writing report 5 ± 0.8 INT-RAD 5 ± 0.8 INT-RAD
  1. PHYS physician experienced in conscious sedation and for monitoring of the patient, N nurse, TECH technical assistant, INT-RAD interventional radiologist, MPE medical physics expert, RO radiation oncologist
  2. aCT blocked for this time period plus additional 10 min for room cleaning etc. Time needed for intervention and ablation were extracted from institutional PACS data for all patients. All other data were measured in a sample of 5 patients