Mechanical and Materials Engineering Publications

Title

A multi-sensory mechatronic device for localizing tumors in minimally invasive interventions

Document Type

Conference Proceeding

Publication Date

6-29-2015

Volume

2015-June

Issue

June

Journal

Proceedings - IEEE International Conference on Robotics and Automation

First Page

4742

URL with Digital Object Identifier

10.1109/ICRA.2015.7139858

Last Page

4747

Abstract

Tumor localization in traditional lung resection surgery requires manual palpation of the deflated lung through a thoracotomy. It is a painful procedure that is not suitable for many patients. Therefore, a multisensory mechatronic device was designed to localize tumors using a minimally invasive approach. The device is sensorized with tactile, ultrasound and position sensors in order to obtain multimodal data of soft tissue in real time. This paper presents the validation of the efficiency and efficacy of this device via an ex vivo experimental study. Tumor pathology was simulated by embedding iodine-agar phantom tumors of varying shapes and sizes into porcine liver tissue. The device was then used to palpate the tissue to localize and visualize the simulated tumors. Markers were then placed on the location of the tumors and fluoroscopic imaging was performed on the tissue in order to determine the localization accuracy of the device. Our results show that the device localized 87.5% of the tumors with an average deviation from the tumor center of 3.42 mm.

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