Inverse C-arm Positioning for Interventional Procedures Using Real-Time Body Part Detection

The automation and speedup of interventional therapy and diagnostic workflows is a crucial issue. One way to improve these workflows is to accelerate the image acquisition procedures by fully automating the patient setup. This paper describes a system that performs this task without the use of markers or other prior assumptions. It returns metric coordinates of the 3-D body shape in real-time for inverse positioning. This is achieved by the application of an emerging technology, called Time-of-Flight (ToF) sensor. A ToF sensor is a cost-efficient, off-the-shelf camera which provides more than 40,000 3-D points in realtime. The first contribution of this paper is the incorporation of this novel imaging technology (ToF) in interventional imaging. The second contribution is the ability of a C-arm system to position itself with respect to the patient prior to the acquisition. We are using the 3-D surface information of the patient to partition the body into anatomical sections. This is ach...

• Type: Conference
• Year: 2009
• Where: MICCAI
• Authors: Christian Schaller, Christopher Rohkohl, Jochen Penne, Michael Stürmer, Joachim Hornegger
• Keywords: 3-D Body Shape, 3-D Surface Information, Medical Imaging, MICCAI 2009, ToF Sensor