The Two-Point Technique for Fluoroscopic-Guided Endoscopic Procedures in Urology: A Validation Study.

Area of Science:

• Urology
• Medical Imaging
• Radiation Safety

Background:

• Widespread use of ionizing radiation in diagnostics and therapeutics raises concerns about occupational and patient exposure.
• Minimizing radiation dose during urologic procedures is crucial for patient and staff safety.

Purpose of the Study:

• To evaluate a novel fluoroscopic technique, the two-point technique (TPT), for its potential to minimize radiation dose.
• To compare radiation exposure and fluoroscopy time between TPT and conventional cognitive fluoroscopic technique (CFT).

Main Methods:

• Prospective evaluation of 106 patients undergoing endoscopic urologic procedures.
• Comparison of TPT (c-arm shifted between caudal and cephalad set points) versus CFT (c-arm manipulation at user discretion).
• Analysis of clinical, radiographic, and fluoroscopic data using statistical methods, including logistic regression.

Main Results:

• Mean fluoroscopy time was significantly lower with TPT (71.1 sec) compared to CFT (104.5 sec) (p=0.04).
• Mean radiation dose was significantly lower with TPT (11.6 mGy) compared to CFT (20.3 mGy) (p=0.03).
• TPT was an independent predictor of reduced operative room and fluoroscopy time (p<0.05).

Conclusions:

• The two-point technique (TPT) effectively reduces radiation dose and fluoroscopic time in endoscopic urologic procedures.
• TPT offers a valuable method for lowering radiation exposure for both patients and operating room staff.