A Prospective Post-Market Study to Evaluate the Clinical Utility of IRIS, a Three-dimensional (3-D) Anatomical Modeling Software for Pre-operative Surgical Planning and Intra-operative Navigation for Nephrectomy

Inclusion Criteria:

Subject is 18 years or older
Subject is undergoing robotic-assisted partial or robotic-assisted radical nephrectomy being performed by participating surgeon
Subjects who has had or plan to have a CT scan (with IV contrast medium)

Exclusion Criteria:

Subject has a solitary or horseshoe kidney
Subject has more than two masses in the applicable kidney requiring multiple partial nephrectomies on the same kidney
Subject with prior surgery (ex: partial nephrectomy etc.) on the affected kidney excluding endoscopic kidney stone surgery
Subject with renal vein tumor thrombus
Subjects planned to have a bilateral operation (ex: bilateral partial nephrectomies planned at the same time)
Metastatic disease with life expectancy of less than 1 year
Pregnant or suspect pregnancy
Subject is mentally handicapped or has a psychological disorder or severe systemic illness that would preclude compliance with study requirements or ability to provide informed consent
Subject belonging to other vulnerable population, e.g, prisoner or ward of the state