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Intraoperative renal ultrasonography: a useful adjunct to partial nephrectomy
D G Assimos1, H Boyce, R D Woodruff
1Department of Urology, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, North Carolina.
The Journal of Urology
|November 1, 1991
Summary
Intraoperative renal ultrasonography aids surgeons in precisely locating and removing kidney tumors during partial nephrectomy. This imaging technique helps achieve negative surgical margins, improving cancer treatment outcomes.
Area of Science:
- Urology
- Surgical Oncology
- Medical Imaging
Background:
- Advancements in ultrasonography, including transducer miniaturization and improved resolution, enhance its utility in surgical settings.
- Intraoperative renal ultrasonography is emerging as a valuable tool for complex renal surgeries.
Purpose of the Study:
- To evaluate the effectiveness of intraoperative renal ultrasonography in guiding partial nephrectomy for renal cell carcinoma.
- To assess the ability of ultrasonography to define tumor extent and ensure negative surgical margins.
Main Methods:
- Real-time sonographic imaging using 5 MHz sector scanners and 7.5 MHz convex array transducers.
- Application in 6 patients undergoing partial nephrectomy and in 14 radical nephrectomy specimens for simulated partial nephrectomy.
Main Results:
- Negative surgical margins were achieved in all 6 patients undergoing partial nephrectomy.
- 13 out of 14 simulated partial nephrectomies on radical nephrectomy specimens resulted in negative margins.
- Ultrasonography accurately identified tumor location and extent, including deep intraparenchymal lesions.
Conclusions:
- Intraoperative renal ultrasonography is effective in identifying deep renal lesions and guiding nephrotomy.
- This technique facilitates the achievement of negative resection margins during partial nephrectomy for renal cell carcinoma.
- Ultrasonography improves surgical precision and oncological outcomes in kidney cancer surgery.