Determining the position of a patient reference from C-Arm views for image guided navigation.

International Journal of Computer Assisted Radiology and Surgery
Wei WeiRalf Petzold

Abstract

Image Guided Surgery (IGS) navigation systems may acquire the position of an instrument relative to the patient with an infrared light-based stereo tracking camera. The measured instrument position is then transformed from the tracking coordinate system to the coordinate system of the intraoperatively acquired medical images. A robust and practical automatic method was developed to determine the coordinate transformation from the tracking device to intraoperatively acquired images. The method works with a patient reference device that contains both fluoroscopic markers and tracking markers in a defined geometric arrangement which is fixed on the patient. As precondition the patient reference must be acquired by at least two fluoroscopic images. From the positions of the fluoroscopic markers in these images, the location and orientation is determined and the tracking-to-image transformation is computed. 3D localization of the fluoroscopic reference markers is determined by a three-step process: marker detection, correspondence calculation and triangulation. These steps are implemented in an automatic and robust manner using a new correspondence calculation method. The improved SVD matching method was evaluated experimentally usi...Continue Reading

References

Apr 22, 1991·Proceedings. Biological Sciences·G L Scott, H C Longuet-Higgins
Jan 5, 1999·Medical Image Analysis·A RangarajanJ Duncan
Mar 29, 2006·IEEE Transactions on Pattern Analysis and Machine Intelligence·Yefeng Zheng, David Doermann
Oct 27, 2010·IEEE Transactions on Pattern Analysis and Machine Intelligence·Andriy Myronenko, Xubo Song

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.