Topics

Heuristic tree searching for pose-independent 3D/2D rigid registration of vessel structures.

07:00 EST 14th January 2020 | BioPortfolio

Summary of "Heuristic tree searching for pose-independent 3D/2D rigid registration of vessel structures."

The 3D/2D registration of pre-operative computed tomography angiography and intra-operative X-ray angiography images in vascular intervention is imperative for guiding surgical instru-ments and reducing the dosage of toxic contrast agents. In this study, 3D/2D vascular registration is formulated as a search tree problem on the basis of the topological continuity of vessels and the fact that matching can be decomposed into continuous states. In each node of the tree, a closed-solution of 3D/2D transfor-mation is used to obtain the registration results based on the dense correspondences of vessel points, and the results of match-ing and registration are calculated and recorded. Then, a hand-crafted score that quantifies the qualities of matching and regis-tration of vessels is used, and the remaining problem focuses on finding the highest score in the search tree. An improved heuristic tree search strategy is also proposed to find the best registration. The proposed method is evaluated and compared with four state-of-the-art methods. Experiments on simulated data demon-strate that our method is insensitive to initial pose and robust to noise and deformation. It outperforms other methods in terms of registering real model data and clinical coronary data. In the 3D/2D registration of uninitialized and initialized coronary arter-ies, the average registration errors are 1.85 and 1.79 mm, respec-tively. Given that the proposed method is independent of the ini-tial pose, it can be used for navigating vascular intervention for clinical practice.

Affiliation

Journal Details

This article was published in the following journal.

Name: Physics in medicine and biology
ISSN: 1361-6560
Pages:

Links

DeepDyve research library

PubMed Articles [7067 Associated PubMed Articles listed on BioPortfolio]

Non-rigid Registration for Tracking Incompressible Soft Tissues with Sliding Motion.

Respiration causes the deformation and sliding motion of the soft tissues, and affects the accuracy of the assessment of minimally invasive abdominal surgery. Non-rigid registration is used to elimina...

Comparison of rigid and deformable image registration for nasopharyngeal carcinoma radiotherapy planning with diagnostic position PET/CT.

This observer study aimed to compare rigid image registration (RIR) with deformable image registration (DIR) for diagnostic position (DP) positron emission tomography/computed tomography (PET/CT) imag...

Reliable navigation registration in cranial and spine surgery based on intraoperative computed tomography.

Low registration errors are an important prerequisite for reliable navigation, independent of its use in cranial or spinal surgery. Regardless of whether navigation is used for trajectory alignment in...

Hierarchical spherical deformation for cortical surface registration.

We present hierarchical spherical deformation for a group-wise shape correspondence to address template selection bias and to minimize registration distortion. In this work, we aim at a continuous and...

Reducing non-realistic deformations in registration using precise and reliable landmark correspondences.

Non-rigid image registration is prone to non-realistic deformations. In this paper, we proposed a novel landmark-correspondence detection algorithm, with which, the non-realistic deformations in image...

Clinical Trials [2909 Associated Clinical Trials listed on BioPortfolio]

Pilot Study to Evaluate Tea Tree Oil Gel for Facial Acne

Mild to moderate facial acne is an extremely common disease of teenagers and young adults. This pilot study will investigate whether treatment with a gel containing tea tree oil reduces nu...

Different Doses of Tyrosine Adsorbed Tree Pollen Allergoid With Monophosphoryl Lipid A (MPL) in Patients Sensitized to Tree Pollen

Allergen-specific immunotherapy (SIT), the administration of gradually increasing quantities of an allergen extract to an allergic patient, is a curative approach which directly treats the...

The Effect of Yoga Asana 'Vrksasana (Tree Pose)' on Balance in the Patients With Osteoporosis

Patients with T score of bone mineral densitometry less than or equal to -2.5 will be included in the study. Initial evaluation consists of obtaining demographic data, performing internati...

Induction of Immunogenicity With Different Doses of TreeMATA in Subjects Allergic to Tree Pollen

Tree MATA (modified pollen allergen tyrosine adsorbate) has been developed to provide pre-seasonal specific immunotherapy for patients with hypersensitivity to tree (birch, alder, and haze...

Re-Introducing Nuts in Allergic Patients

This study aims to compare the safety and the compliance to different procedures (A: at home or B: at the hospital) for introducing tree nuts into the diet of patients with Immunoglobulin ...

Medical and Biotech [MESH] Definitions

The only family of the order SCANDENTIA, variously included in the order Insectivora or in the order Primates, and often in the order Microscelidea, consisting of five genera. They are TUPAIA, Ananthana (Indian tree shrew), Dendrogale (small smooth-tailed tree shrew), Urogale (Mindanao tree shrew), and Ptilocercus (pen-tailed tree shrew). The tree shrews inhabit the forest areas of eastern Asia from India and southwestern China to Borneo and the Philippines.

Rigid, semi-rigid, or inflatable cylindric hydraulic devices, with either combined or separate reservoir and pumping systems, implanted for the surgical treatment of organic ERECTILE DYSFUNCTION.

Essential oil extracted from Melaleuca alternifolia (tea tree). It is used as a topical antimicrobial due to the presence of terpineol.

Dried tree sap from the MASTIC TREE that is used in TRADITIONAL MEDICINE and chewed as gum.

Unique slender cells with multiple processes extending along the capillary vessel axis and encircling the vascular wall, also called mural cells. Pericytes are imbedded in the BASEMENT MEMBRANE shared with the ENDOTHELIAL CELLS of the vessel. Pericytes are important in maintaining vessel integrity, angiogenesis, and vascular remodeling.

Quick Search


DeepDyve research library

Relevant Topics

Radiology
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...

Vascular
Vascular relates to blood vessels (Oxford Medical Dictionary) and can be used to describe the supply of blood, a disease affecting the blood vessels or molecules associated with these structures. For example, <!--LGfEGNT2Lhm-->atherosclerosis ...

Surgical treatments
Surgery is a technology consisting of a physical intervention on tissues. All forms of surgery are considered invasive procedures; so-called "noninvasive surgery" usually refers to an excision that does not penetrate the structure being exci...


Searches Linking to this Article