منابع مشابه
Quantifying cross-scatter contamination in biplane fluoroscopy motion analysis systems.
Biplane fluoroscopy is used for dynamic in vivo three-dimensional motion analysis of various joints of the body. Cross-scatter between the two fluoroscopy systems may limit tracking accuracy. This study measured the magnitude and effects of cross-scatter in biplane fluoroscopic images. Four cylindrical phantoms of 4-, 6-, 8-, and 10-in. diameter were imaged at varying kVp levels to determine th...
متن کاملPreliminary model-based validation of a biplane fluoroscopy system
Background Biplane fluoroscopy can directly track the motion of bones and therefore measure joint kinematics. Our prior markerbased work has demonstrated the ability of our system to accurately and precisely track the motion of known objects (i.e., tantalum beads) [1]. In this study, we present the preliminary bone-based validation of our system by tracking the bones of the foot from cadaveric ...
متن کاملPreliminary marker-based validation of a novel biplane fluoroscopy system
Materials and methods Biplane Fluoroscopy System: The system consists of two Philips BV Pulsera C-arms set in custom frames around a raised floor with a radiolucent imaging area. X-ray images are captured with high speed (1000fps) cameras. Validation Object: 1.6mm tantalum beads were placed in a machined block (wand) then measured to 7 microns with a Coordinate Measuring Machine to determine th...
متن کاملThree-Dimensional Registration and Tracking of Vascular Structures Using Calibrated Biplane Fluoroscopy
Michael Hayden Rosenthal: Three-Dimensional Registration and Tracking of Vascular Structures Using Calibrated Biplane Fluoroscopy (Under the direction of Professor Henry Fuchs) Medicine is rapidly adopting new minimally invasive techniques, especially in the realm of vascular procedures. These new techniques require spatially complex operations while providing little or no hand-eye coordination...
متن کاملCoracohumeral Distances and Correlation to Arm Rotation: An In Vivo 3-Dimensional Biplane Fluoroscopy Study.
BACKGROUND Reduced coracohumeral distances have been reported to be associated with anterior shoulder disorders such as subscapularis tears, biceps tendon injuries, and leading edge supraspinatus tears. PURPOSE To determine the variability in coracohumeral distance as a function of arm rotation in healthy male subjects. The null hypothesis was that no differences in coracohumeral distance wou...
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ژورنال
عنوان ژورنال: The Laryngoscope
سال: 1939
ISSN: 0023-852X
DOI: 10.1288/00005537-193912000-00008