Placidi G, Franchi D, Marsili L, Gallo P. Development of an auxiliary system for the execution of vascular catheter interventions with a reduced radiological risk; system description and first experimental results.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2007;
88:144-51. [PMID:
17804110 DOI:
10.1016/j.cmpb.2007.07.009]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2007] [Revised: 07/03/2007] [Accepted: 07/09/2007] [Indexed: 05/17/2023]
Abstract
Vascular catheterization is a common procedure in clinical medicine. It is normally performed by a specialist using an X-ray fluoroscopic guide and contrast-media. In the present paper, an image-guided navigation system which indicates a path providing guidance to the desired target inside the vascular tree is described with the aim of reducing the exposure of personnel and patients to X-rays during the catheterization procedure. A 3D model of the patient vascular tree, reconstructed with data collected by an angiography before starting the intervention, is used as a guide map instead of fluoroscopic scans. An accurate spatial correspondence between the body of the patient and the 3D reconstructed vascular model is established and, by means of a position indicator installed over the catheter tip, the real-time position/orientation of the tip is indicated correctly. This paper describes the system and the operational procedures necessary to use the proposed method efficiently during a catheter intervention. Preliminary experimental results on a phantom are also reported.
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