3D Slicer to Virtual Reality: Advancing Kidney Stone Surgery Visualization "Presentation" - Mariah Hernandez
August 16, 2024
At the World Congress of Endourology and Uro-Technology, Mariah Hernandez presents a study on the use of immersive virtual reality (VR) in preoperative planning for percutaneous nephrolithotomy. The study finds that VR enhances understanding of renal anatomy, leading to altered calyx choice for access in 30% of VR cases. This research demonstrates the potential of VR technology to improve surgical planning and outcomes in percutaneous nephrolithotomy.
Biographies:
Mariah Hernandez, Junior Research Associate for the Department of Urology and the University of California, Irvine, CA
Biographies:
Mariah Hernandez, Junior Research Associate for the Department of Urology and the University of California, Irvine, CA
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Immersive Virtual Reality (iVR) for Percutaneous Nephrolithotomy: The More You Know, the Better the Outcome Presentation - Andrei D. Cumpanas
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Read the Full Video Transcript
Mariah Hernandez: My name is Mariah, and I'm a current research specialist at the University of California, Irvine's Department of Urology. Today I'll be presenting a project titled A Prospective Randomized Clinical Study on Preoperative Immersive Virtual Reality for Percutaneous Nephrolithotomy: The Route to a Safer, More Effective Percutaneous Stone Removal.
Among patients scheduled for percutaneous stone removal, a comprehensive understanding of CT-based perirenal anatomy, stone size, along with detailed knowledge of stone location relative to the collecting system is imperative for ensuring a safe and effective procedure. We evaluated the impact of preoperative viewing of an immersive, interactive virtual reality model on surgical planning and patient outcomes. Between 2019 and 2022, 175 patients with renal stones scheduled for percutaneous removal were randomized into either a CT-only group or a CT plus immersive virtual reality group. Using a 3D slicer program, CT scans were rendered into virtual reality models. All procedures were performed by one of four endourologists in our department.
When using VR, surgeons visualized and manipulated the perirenal anatomy, renal parenchyma, and the collecting system. Following CT and virtual reality viewing, the surgeon's understanding of the renal anatomy was determined using a Likert questionnaire. We assessed surgical planning with regards to renal access, operative outcomes, and follow-up CT stone clearance data. Most operative CT scans were obtained with two to three millimeter cuts. Complications were defined using the Clavien-Dindo classification system. Reviewing the virtual reality model ultimately enhanced the understanding of renal anatomy, which resulted in an altered calyx of choice for access in 30% of virtual reality cases. Moreover, there was a significant improvement in absolute stone-free and less than four millimeter stone-free remnant rates in the virtual reality group.
Postoperatively, there was a significantly lower incidence of Clavien 2 and 3A complications in the virtual reality group. In conclusion, preoperative viewing of a virtual reality model provided for alterations in planned access, as well as a safer, more effective percutaneous stone removal procedure. Thank you.
Mariah Hernandez: My name is Mariah, and I'm a current research specialist at the University of California, Irvine's Department of Urology. Today I'll be presenting a project titled A Prospective Randomized Clinical Study on Preoperative Immersive Virtual Reality for Percutaneous Nephrolithotomy: The Route to a Safer, More Effective Percutaneous Stone Removal.
Among patients scheduled for percutaneous stone removal, a comprehensive understanding of CT-based perirenal anatomy, stone size, along with detailed knowledge of stone location relative to the collecting system is imperative for ensuring a safe and effective procedure. We evaluated the impact of preoperative viewing of an immersive, interactive virtual reality model on surgical planning and patient outcomes. Between 2019 and 2022, 175 patients with renal stones scheduled for percutaneous removal were randomized into either a CT-only group or a CT plus immersive virtual reality group. Using a 3D slicer program, CT scans were rendered into virtual reality models. All procedures were performed by one of four endourologists in our department.
When using VR, surgeons visualized and manipulated the perirenal anatomy, renal parenchyma, and the collecting system. Following CT and virtual reality viewing, the surgeon's understanding of the renal anatomy was determined using a Likert questionnaire. We assessed surgical planning with regards to renal access, operative outcomes, and follow-up CT stone clearance data. Most operative CT scans were obtained with two to three millimeter cuts. Complications were defined using the Clavien-Dindo classification system. Reviewing the virtual reality model ultimately enhanced the understanding of renal anatomy, which resulted in an altered calyx of choice for access in 30% of virtual reality cases. Moreover, there was a significant improvement in absolute stone-free and less than four millimeter stone-free remnant rates in the virtual reality group.
Postoperatively, there was a significantly lower incidence of Clavien 2 and 3A complications in the virtual reality group. In conclusion, preoperative viewing of a virtual reality model provided for alterations in planned access, as well as a safer, more effective percutaneous stone removal procedure. Thank you.