The da Vinci Xi: a review of its capabilities, versatility, and potential role in robotic colorectal surgery.

The Xi is the latest da Vinci surgical system approved for use in colorectal surgery. With its novel overhead architecture, slimmer boom-mounted arms, extended instrument reach, guided targeting, and integrated auxiliary technology, the Xi manages to address several limitations of earlier models. The versatility of this new system allows it to be implemented in a wide range of colorectal procedures - from complex multiquadrant colectomies to challenging mesorectal dissections in the pelvis.

A new application of the four-arm standard da Vinci® surgical system: totally robotic-assisted left-sided colon or rectal resection.

Background: The key to successful rectal cancer resection is to perform complete total mesorectal excision (TME). Laparoscopic TME can be challenging, especially in the narrow confines of the pelvis. Robotic-assisted surgery can overcome these limitations through superior three-dimensional (3-D) visualization and the increased range of movements provided by the endowrist function.

Natural history of small, "indeterminate" hepatic lesions in patients with colorectal cancer.

Purpose: The initial staging CT scan for patients with colorectal cancer may reveal small, "indeterminate" hepatic lesions. The significance of these lesions is often unknown at the time of diagnosis. Surveillance of these lesions is often recommended because they may have an impact on the subsequent management of these patients.