Intraoperative modification of resection plans for liver surgery

@article{Hansen08, abstract = {Abstract Objective\ \ Recent surgical planning software provides valuable tools for evaluating different resection strategies preoperatively. With such virtual resections, predictions and quantitative analyses may be carried out to assess the resection feasibility with respect to tumors and risk structures. In oncologic liver surgery, additional tumors that were not seen in the preoperative images are often found during the intervention using intraoperative ultrasound (IOUS). Due to such findings, the resection strategy must be updated or completely revised. Materials and methods\ \ Therefore, we have developed methods for the intraoperative modification of resection plans. The probe of an ultrasound-based navigation system and alternatively the pointing device Wiimote are proposed as intraoperative interaction devices. Fast adaptation of planning information and the communication with both interaction devices is supported by our system, the Intraoperative Planning Assistant (IPA). The IPA has been evaluated in the operation room (OR) during laparoscopic liver interventions on pigs. Results\ \ Our preliminary results confirm that intraoperative modifications of resection plans are both feasible and beneficial for liver surgery. After the intraoperative modification task, updated remaining liver volume and resection volume were displayed and quantified within 10\ s. Conclusion\ \ For the first time, surgeons are provided with a system for intraoperative modification of resection plans that offers a crucial decision support, is easy to use and integrates smoothly into the clinical workflow. The new system provides major support for decision making in the OR and thus improves the safety of surgical interventions.}, author = {Hansen, Christian and K\"{o}hn, Alexander and Schlichting, Stefan and Weiler, Florian and Zidowitz, Stephan and Kleemann, Markus and Peitgen, Heinz-Otto }, citeulike-article-id = {2927534}, journal = {International Journal of Computer Assisted Radiology and Surgery}, keywords = {deformation, intraoperative, liver, planning, resection}, posted-at = {2008-06-25 22:48:29}, priority = {3}, title = {Intraoperative modification of resection plans for liver surgery}, url = {http://dx.doi.org/10.1007/s11548-008-0161-5} }

TY - JOUR ID - Hansen08 L3 - citeulike-article-id:2927534 TI - Intraoperative modification of resection plans for liver surgery JF - International Journal of Computer Assisted Radiology and Surgery N2 - Abstract Objective  Recent surgical planning software provides valuable tools for evaluating different resection strategies preoperatively. With such virtual resections, predictions and quantitative analyses may be carried out to assess the resection feasibility with respect to tumors and risk structures. In oncologic liver surgery, additional tumors that were not seen in the preoperative images are often found during the intervention using intraoperative ultrasound (IOUS). Due to such findings, the resection strategy must be updated or completely revised. Materials and methods  Therefore, we have developed methods for the intraoperative modification of resection plans. The probe of an ultrasound-based navigation system and alternatively the pointing device Wiimote are proposed as intraoperative interaction devices. Fast adaptation of planning information and the communication with both interaction devices is supported by our system, the Intraoperative Planning Assistant (IPA). The IPA has been evaluated in the operation room (OR) during laparoscopic liver interventions on pigs. Results  Our preliminary results confirm that intraoperative modifications of resection plans are both feasible and beneficial for liver surgery. After the intraoperative modification task, updated remaining liver volume and resection volume were displayed and quantified within 10 s. Conclusion  For the first time, surgeons are provided with a system for intraoperative modification of resection plans that offers a crucial decision support, is easy to use and integrates smoothly into the clinical workflow. The new system provides major support for decision making in the OR and thus improves the safety of surgical interventions. KW - deformation KW - intraoperative KW - liver KW - planning KW - resection AU - Hansen, Christian AU - Köhn, Alexander AU - Schlichting, Stefan AU - Weiler, Florian AU - Zidowitz, Stephan AU - Kleemann, Markus AU - Peitgen, Heinz-Otto UR - http://dx.doi.org/10.1007/s11548-008-0161-5 ER -