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Related Experiment Video

Updated: Jun 19, 2026

Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats

Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats

Published on: March 11, 2016

Laparoscopic Doppler technology in laparoscopic renal surgery.

Mark A Perlmutter¹, Elias S Hyams, Michael D Stifelman

¹Department of Urology, New York University School of Medicine, New York, 10016, USA.

JSLS : Journal of the Society of Laparoendoscopic Surgeons

|October 2, 2009

Summary

Laparoscopic Doppler technology aids in identifying blood vessels during renal surgeries. This pilot study found the probe to be quick, safe, and effective in altering management and saving time for surgeons.

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Laser Doppler Perfusion Imaging in the Mouse Hindlimb

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Last Updated: Jun 19, 2026

Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats

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Published on: March 11, 2016

Laser Doppler Perfusion Imaging in the Mouse Hindlimb

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Published on: April 18, 2021

Area of Science:

Urology
Minimally Invasive Surgery
Surgical Technology

Background:

Laparoscopic Doppler technology assists in vascular identification during laparoscopic procedures.
Previous experience with this technology during radical nephrectomy, nephroureterectomy, partial nephrectomy, and robotic-assisted pyeloplasty has been published.
This study presents a prospective evaluation of a Doppler probe in these renal surgeries.

Purpose of the Study:

To prospectively evaluate the utility and safety of a laparoscopic Doppler probe in various renal laparoscopic surgeries.
To assess the probe's impact on operative time, management decisions, and identification of accessory vessels.
To determine the ease of use and technical feasibility of the laparoscopic Doppler probe.

Main Methods:

A laparoscopic Doppler probe was utilized in 50 patients undergoing laparoscopic renal surgeries.
Data collected included anatomic findings, Doppler survey time, dissection time, operative time, blood loss, management changes, subjective time savings, technical difficulties, complications, and ease of use.
Prospective recording of all parameters was performed.

Main Results:

Mean Doppler survey time was 1.77 minutes, and mean hilar dissection time was 9.25 minutes.
Eight accessory vessels (17%) were identified that were not seen on preoperative imaging.
The probe altered management in 16% of patients, subjectively saved time in 78%, and demonstrated 100% concordance with dissection, with no complications but 2 technical failures.

Conclusions:

The laparoscopic Doppler probe is a quick, safe, and easy-to-use tool with perfect concordance with surgical dissection.
The technology shows promise in improving surgical outcomes and efficiency in renal laparoscopic procedures.
Further randomized controlled trials are needed to definitively confirm the utility of Doppler assistance in these surgeries.