Patient selection and operative planning for hepatic resection are based in large part on tomographic imaging provided by computed tomography and, to a lesser extent, magnetic resonance imaging. Information provided by these studies allows identification of the number and location of tumor sites within the liver. On this basis, operative resection decisions are made, including the type and extent of resection (anatomic vs nonanatomic). In most circumstances information provided by a standard preoperative contrast-enhanced image is sufficient for operative planning purposes, without the need for specialized image processing.
Chapman WC. Impact of Virtual Tumor Resection and Computer-Assisted Risk Analysis on Operation Planning and Intraoperative Strategy in Major Hepatic Resection—Invited Critique. Arch Surg. 2005;140(7):638. doi:10.1001/archsurg.140.7.638