bifurcation


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Related to bifurcation: Bifurcation theory, Bifurcation diagram

bifurcation

 [bi-fur-ka´shun]
1. a division into two branches, such as a blood vessel, or a tooth that has two roots.
Bifurcatio aortae (aortic bifurcation), showing the branching of the abdominal aorta into the common iliac arteries, and from there to the internal and external iliac arteries. From Dorland's, 2000.
2. the site of such a division.

bi·fur·ca·tion

(bī'fŭr-kā'shŭn), [TA]
A forking; a division into two branches.
Synonym(s): bifurcatio [TA]

bifurcation

/bi·fur·ca·tion/ (bi″fer-ka´shun)
1. a division into two branches.
2. the point at which division into two branches occurs.
Enlarge picture
Carotid bifurcation: the site of division of the common carotid artery into the external and internal carotid arteries.

bifurcation

[bī′fərkā′shən]
Etymology: L, bis + furca, fork
a splitting into two branches, such as the trachea, which branches into the two bronchi.

bifurcation

Theoretical medicine
A point in a dynamic system in which there is an abrupt change in the system’s behaviour; bifurcations occurs when 1+ of a system’s parameters reach a critical value. A change in the stability or types of solutions which occur as a parameter is varied in a dissipative dynamic system; the change can be seen as a bifurcation point in a graph of the parameter being varied vs one of the properties of the solutions.
 
Vox populi
A splitting into 2 parts.

Clinical trials
BIFURCATION
Evaluation of the Cypher sirolimus-eluting stent in the treatment of patients with bifurcation. A trial comparing the use of either one drug-eluting stent in the main branch and provisional stenting in the side branch or definitive stents in both vessels.
 
Results
Major acute cardiac events and target vessel revascularisation in CABG patients was 19% in stent + provisional stent patients and 14% in stent + PTCA (definitive) patients.

Logistics
Randomised, multicentre, US; 86 patients

bi·fur·ca·tion

(bī'fŭr-kā'shŭn) [TA]
A forking; a division into two branches.

bifurcation

A fork or double prong. Bifurcations are very common in blood vessels and in the bronchial ‘tree’ of the lungs. At a bifurcation the sum of the cross-sectional area of the two branches usually exceeds that of the parent branch. Since this happens many times, there is a progressive increase in the unit volume of the system.

bifurcation

division from a common origin into two equal parts, e.g. the division of a blood vessel into two equal-sized vessels

bi·fur·ca·tion

(bī'fŭr-kā'shŭn) [TA]
A forking; a division into two branches.

bifurcation (bī´furkā´shən),

n the division of a tooth's roots into two parts or branches.

bifurcation

1. a division into two branches.
2. the point at which division into two branches occurs.

tracheal bifurcation
termination of the trachea, where it divides into two principal bronchi.
References in periodicals archive ?
In this section, we mainly prove that the local Hopf bifurcation of (1.
From our simulations, we note that the bifurcation behaviour changes as the inlet [C.
Bifurcations were classified according to the Medina classification whereby the proximal MV, distal MV, and SB components of the bifurcation are each assigned a score of 1 or 0 depending on the presence or absence of >50% stenosis.
He rejected the stand of the union law minister Sadananda Gowda that the Centre had no role in bifurcation and the issue was between Andhra Pradesh Chief Minister and the Chief Justice.
In Section 2, the conditions for the emergence of Neimark-Sacker bifurcation are reviewed.
0]; system (3) undergoes a Hopf bifurcation at E when [tau] = [[tau].
Tryton Side Branch Stent System is built using proprietary Tri-ZONE technology to offer a dedicated strategy for treating bifurcation lesions.
Judge Robinson concluded in her decisions that bifurcation eliminates discovery disputes and Daubert motions relating to damages documents and expert opinions until after all the liability issues have been resolved.
In order to model an arterial bifurcation with precise dimensions, a two-stage mold design has been developed and designed using Solidworks as shown in FIGURE 1.
To facilitate the Union government's formal bifurcation of Andhra Pradesh (AP) into two new states - Telangana and Seemandhra - on the Appointed Day (2 June), state Governor ESL Narasimhan has instructed the AP bureaucracy to complete all formalities concerned by 15 May.
According to the authors, only a tridimensional image exam, such as the cone beam computed tomography (CBCT), can show the presence and morphology of the bifurcation path of the mandibular canal precisely.