case study urology minimally invasive surgery for laser ablation in prostate eric m. walser, md

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Case Study Urology

Minimally Invasive SurgeryFor laser ablation in prostate

Eric M. Walser, MD

Laser Ablation Hardware and Software

WorkstationSmall 980nm diode laserReadily interfaces with MRISoftware: real-time prediction model control features

Laser Applicator 1.65mm in diameter and includes aCooling Catheter and Laser Diffusing Fiber

Laser Applicator Placement

Laser Applicator Placement

Image confirmation of Laser Applicator placementSagittal ImageAxial image

Fiber 1Fiber 2

Ablation 1

Laser Doses4.5W for 38 sec10.5W 37 sec9W 86 sec12W 124 sec

20 by 15 mm damage

Animation

Final Images

Visualase Axial images Temperature Map Damage Model

Ablation 2

Laser Doses4.5 W 54 sec10.5 W for 150, 121 and 120 sec

30 by 23 mm damage

Animation

Final Images

Visualase Axial images Temperature Map Damage Model

Post

Sagittal images

Post

Axial image

Ablation

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