Merging Thermal Cloud Points with Textured Surfaces and Three-Dimensional Models: A Clinical Case Study

Giuseppe Lo Presti, Daniele Bianchini, Francesca Ceccaroni, Roberto Cioni, Cinzia Freschi, Vincenzo Ferrari, and Mauro Ferrari

Keywords

Surface maps, three-dimensional models, thermal maps, image fusion

Abstract

The ability to integrate three-dimensional (3D) models obtained from radiological volumetric images with maps of anatomical surfaces offers the possibility of greater accuracy in identifying structures of interest and any lesions present in patients. The anatomical maps have the advantage of being non-invasive investigations; on the other hand they have the limitation of not giving information relating to the deep structures as well as CT. The increased possibility of cancer induction from x-ray radiation exposure is one of the main risks associated with the use of CT. In order to reduce the radiation expositions we decided to merge superficial maps with segmented models in a case of revascularization of ischemic diabetic foot. We acquired a wide range of images by two digital cameras and one thermo camera before and after the vascular surgery aimed at restoring the normal vascularization of right foot. In the meanwhile we acquired three-dimensional rotational angiographic (3DRA) data of the patient in order to merge external maps obtained by digital cameras with thermal ones and with 3D model obtained by segmenting radiological data volumes. Finally we evaluated the success of vascularization by means of data we acquired.

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