Doppler sonography and B-scanning in renal surgery

Area of Science:

• Urology
• Surgical Technology
• Medical Imaging

Background:

• Renal stone surgery traditionally requires clamping the renal artery to minimize bleeding.
• Clamping can lead to temporary kidney ischemia, potentially causing damage.
• Precise localization of stones and associated vasculature is crucial for minimally invasive approaches.

Purpose of the Study:

• To evaluate the efficacy of combined Doppler and B-scan sonography for intraoperative localization during renal stone surgery.
• To determine if this imaging approach facilitates avascular nephrotomy and bloodless stone removal.

Main Methods:

• Intraoperative localization of intrarenal arteries and stones using Doppler and B-scan sonography.
• Performance of multiple radial avascular nephrotomies guided by sonographic findings.
• Surgical procedure conducted without renal artery clamping or cooling.

Main Results:

• Successful intraoperative localization of intrarenal arteries and stones was achieved.
• Multiple radial avascular nephrotomies were performed, demonstrating the feasibility of targeted dissection.
• Renal stone surgery was completed without the need for renal artery clamping or cooling.

Conclusions:

• Combined Doppler and B-scan sonography is an effective tool for intraoperative guidance in renal stone surgery.
• This technique enables avascular nephrotomy, making bloodless renal stone removal possible.
• The described method offers a potentially safer and more effective approach to treating renal calculi.