tortuosity


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tortuosity

(tôr′chōō-ŏs′ĭ-tē)
n.
1. The quality or condition of being tortuous; twistedness or crookedness.
2. A bent or twisted part, passage, or thing.
References in periodicals archive ?
At the same time, among the 19 patients who failed in the radial approach and were shifted to transfemoral approach because of tortuosity or calcification of the subclavian artery, 14 were from right radial approach group and 5 in left radial approach group, which further confirmed the above mentioned viewpoints.
The method cited by Champoux et al [12] is used to calculate the tortuosity.
In this study, simple tortuosity was measured as the ratio between the actual length of a vessel segment and the shortest (Euclidean) distance between the two endpoints within the same segment providing a reflection of the shape/curvature of the vessel.
h] was directly related to the change in the tortuosity factor and the pore area fraction in the coating.
including both convection and diffusion, or just considering pure diffusion), adopting effective porosity, taking into account tortuosity, and specifying a correct effective heat conduction coefficient, etc.
Quantification of tortuosity and fractal dimension of the lung vessels in pulmonary hypertension patients.
Usefulness of MR angiography may also be limited due to artifacts caused by patient motion, metallic artifacts due to surgical clips or foreign body, turbulent flow or vessel tortuosity or pulsatility (13).
While the force applied to the coating is unknown in this test method, it evaluates the device in pathways that may simulate the tortuosity of the vascular anatomy.
13) On MRI, other potentially subtle findings associated with IIH include flattening of the posterior globe, dilation, and tortuosity of the optic nerve sheath, and an empty sella.
A preoperative cardiac catheterization showed aneurismal dilation and severe tortuosity of left circumflex coronary artery draining into the coronary sinus (Fig.
Most important characteristics are the effective density, the number and the nature of fiber-fiber contacts, and the orientation, shape and tortuosity of the fibers.