Validation of a voxel-based 2D to 3D registration method for measuring 3D natural ankle kinematics with single plane fluoroscopy
نویسندگان
چکیده
Introduction In vivo three-dimensional (3D) kinematics of the ankle joint is essential for a better understanding of its biomechanics and for many clinical applications. Several measurement techniques are available for this data, but few allow non-invasive measurements with sub-millimetre accuracy. The purposes of the study were to develop further a voxel-based 2D to 3D registration method [1] for measuring 3D ankle kinematics with single plane fluoroscopy, and to determine experimentally the measurement errors in vitro.
منابع مشابه
2D-3D Registration of CT Vertebra Volume to Fluoroscopy Projection: A Calibration Model Assessment
This study extends a previous research concerning intervertebral motion registration by means of 2D dynamic fluoroscopy to obtain a more comprehensive 3D description of vertebral kinematics. The problem of estimating the 3D rigid pose of a CT volume of a vertebra from its 2D X-ray fluoroscopy projection is addressed. 2D-3D registration is obtained maximising a measure of similarity between Digi...
متن کاملA Voxel-Based 2D/3D Registration Method for In Vivo 3D Cervical Spine Kinematics Using Bi- planar Fluoroscopy
INTRODUCTION The intervertebral motion of cervical spine on sagittal plane during flexion-extension had been investigated mainly using lateral radiography[1, 2]. The patterns of flexion-extension coupled anterior-posterior translation could be revealed efficiently and accurately. The significant contribution of these measurements was improving the clinical diagnosis through quantifying the kine...
متن کاملFast voxel-based 2D/3D registration algorithm using a volume rendering method based on the shear-warp factorization
2D/3D registration makes it possible to use pre-operative CT scans during X-ray fluoroscopy guided interventions for navigation purposes. For this registration task a fast voxel-based method is presented, which uses a recently introduced similarity measure (pattern intensity). This measure is especially suitable for 2D/3D registration, because it is robust with respect to structures as, for ins...
متن کاملIn vivo three-dimensional kinematics of the normal knee during active extension under unloaded and loaded conditions using single-plane fluoroscopy.
Measurement of the changes of the three-dimensional (3D) motion and surface kinematics of the knee under different external loading conditions is essential for the understanding and evaluation of the function of the joint, as well as for relevant clinical applications. Knee extension exercise (KEE) has been applied extensively in the rehabilitation programs of patients with various knee disorde...
متن کاملAutomatic 2D-3D Image Matching Method for the Shoulder Joint Using Single or Dual Fluoroscopic Images
INTRODUCTION Fluoroscopic image-model registration, using either a single image or dual images, has been widely used to measure in-vivo human joint kinematics, such as the knee, hip, spine and shoulder. The critical step of this technique is the registration of the 3D joint model to the 2D images. An automatic 2D-3D image matching method has been validated as a useful and efficient method for t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of Foot and Ankle Research
دوره 1 شماره
صفحات -
تاریخ انتشار 2008