Super-resolution registration using tissue-classified distance fields

Marai, G. Elisabeta; Laidlaw, David H.; Crisco, Joseph J.

doi:10.1109/tmi.2005.862151

Cited by 46 publications

(38 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absolute positions of the trapezium and first metacarpal within the global imaging space were computed with an established automatic markerless bone registration algorithm [20]. Kinematic transforms for motion of the first metacarpal with respect to the trapezium were then computed for ten separate pairs of positions: neutral to flexion, neutral to adduction, neutral to extension, neutral to abduction, extension to flexion, abduction to adduction, extension to abduction, abduction to flexion, adduction to extension, and flexion to adduction.…”

Section: Methodsmentioning

confidence: 99%

The Envelope of Physiological Motion of the First Carpometacarpal Joint

Crisco

Patel

Halilaj

et al. 2015

Journal of Biomechanical Engineering

View full text Add to dashboard Cite

Much of the hand's functional capacity is due to the versatility of the motions at the thumb carpometacarpal (CMC) joint, which are presently incompletely defined. The aim of this study was to develop a mathematical model to completely describe the envelope of physiological motion of the thumb CMC joint and then to examine if there were differences in the kinematic envelope between women and men. In vivo kinematics of the first metacarpal with respect to the trapezium were computed from computed tomography (CT) volume images of 44 subjects (20M, 24F, 40.3 6 17.7 yr) with no signs of CMC joint pathology. Kinematics of the first metacarpal were described with respect to the trapezium using helical axis of motion (HAM) variables and then modeled with discrete Fourier analysis. Each HAM variable was fit in a cyclic domain as a function of screw axis orientation in the trapezial articular plane; the RMSE of the fits was 14.5 deg, 1.4 mm, and 0.8 mm for the elevation, location, and translation, respectively. After normalizing for the larger bone size in men, no differences in the kinematic variables between sexes could be identified. Analysis of the kinematic data also revealed notable coupling of the primary rotations of the thumb with translation and internal and external rotations. This study advances our basic understanding of thumb CMC joint function and provides a complete description of the CMC joint for incorporation into future models of hand function. From a clinical perspective, our findings provide a basis for evaluating CMC pathology, especially the mechanically mediated aspects of osteoarthritis (OA), and should be used to inform artificial joint design, where accurate replication of kinematics is essential for long-term success.

show abstract

Section: Methodsmentioning

confidence: 99%

The Envelope of Physiological Motion of the First Carpometacarpal Joint

Crisco

Patel

Halilaj

et al. 2015

Journal of Biomechanical Engineering

View full text Add to dashboard Cite

show abstract

“…1B). Six-degree-offreedom kinematics from the neutral position to each of the remaining six positions were determined for each bone with a markerless bone registration algorithm [22]. Kinematics of the first metacarpal with respect to the trapezium were then expressed in terms of a CMC joint coordinate system that describes flexion/extension about an anatomically oriented ulnar-radial axis embedded in the trapezium (X TPM ), adduction/abduction about an anatomicallyoriented dorsal-volar axis embedded in the metacarpal (Z MC1 ), and internal/external rotation about a distalproximal axis (Y) perpendicular to both of the body-fixed Values are expressed as mean ± one SD.…”

Section: Bone Kinematicsmentioning

confidence: 99%

“…Here we present an analysis of normal CMC joint kinematics during high-demand functional tasks, using established CT-based markerless bone registration methods of submillimeter and subdegree accuracy [22]. Grasping and precision handling manipulations constitute 40% of hand function [30] and rely heavily on thumb support; therefore, three tasks that utilize those maneuvers were chosen for the study: lateral key pinch, jar grasp, and jar twist.…”

Section: Introductionmentioning

confidence: 99%

In Vivo Kinematics of the Thumb Carpometacarpal Joint During Three Isometric Functional Tasks

Halilaj

Rainbow

Got

et al. 2014

Clinical Orthopaedics &Amp; Related Research

View full text Add to dashboard Cite

Background The thumb carpometacarpal (CMC) joint is often affected by osteoarthritis-a mechanically mediated disease. Pathomechanics of the CMC joint, however, are not thoroughly understood due to a paucity of in vivo data. Questions/purposes We documented normal, in vivo CMC joint kinematics during isometric functional tasks. We hypothesized there would be motion of the CMC joint during these tasks and that this motion would differ with sex and age group. We also sought to determine whether the rotations at the CMC joint were coupled and whether the trapezium moved with respect to the third metacarpal. Methods Forty-six asymptomatic subjects were CT-scanned in a neutral position and during three functional tasks (key pinch, jar grasp, jar twist), in an unloaded and a loaded position. Kinematics of the first metacarpal, third metacarpal, and the trapezium were then computed. Results Significant motion was identified in the CMC joint during all tasks. Sex did not have an effect on CMC joint kinematics. Motion patterns differed with age group, but these differences were not systematic across the tasks. Rotation at the CMC joint was generally coupled and posture of the trapezium relative to the third metacarpal changed significantly with thumb position. Conclusions The healthy CMC joint is relatively stable during key pinch, jar grasp, and jar twist tasks, despite sex and age group. Clinical Relevance Our findings indicate that directionally coupled motion patterns in the CMC joint, which lead to a specific loading profile, are similar in men and women. These patterns, in addition to other, nonkinematic influences, especially in the female population, may contribute to the pathomechanics of the osteoarthritic joint.

show abstract

“…[12][13][14] To simplify comparison of the malunited and uninjured wrists, the CT volume of the left wrist from each subject was mathematically transformed so that it looked like a right wrist. [12][13][14] In brief, the transformation involved multiplication of the X coordinate of the bone surface contours by À1 and reversing the direction of the contours in each CT image slice. This transformation made the bone shapes and motions of the left wrists directly comparable to the right wrists.…”

Section: Kinematic Analysismentioning

confidence: 99%

Effects of distal radius malunion on distal radioulnar joint mechanics—an in vivo study

Crisco

Moore

Marai

et al. 2007

Journal Orthopaedic Research

View full text Add to dashboard Cite

Patients with a malunited distal radius often have painful and limited forearm rotation, and may progress to arthritis of the distal radioulnar joint (DRUJ). The purpose of this study was to determine if DRUJ congruency and mechanics were altered in patients with malunited distal radius fractures. In nine subjects with unilateral malunions, interbone distances and dorsal and palmar radioulnar ligament lengths were computed from tomographic images of both forearms in multiple forearm positions using markerless bone registration (MBR) techniques. The significance of the changes were assessed using a generalized linear model, which controlled for forearm rotation angle (À608 to 608). In the malunited forearm, compared to the contralateral uninjured arm, we found that ulnar joint space area significantly decreased by approximately 25%, the centroid of this area moved an average of 1.3 mm proximally, and the dorsal radioulnar ligament elongated. Despite our previous findings of insignificant changes in the pattern of radioulnar kinematics in patients with malunited fractures, we found significant changes in DRUJ joint area and ligament lengthening. These findings suggest that alterations in joint mechanics and soft tissues may play an important role in the dysfunction associated with these injuries. ß

show abstract

Super-resolution registration using tissue-classified distance fields

Cited by 46 publications

References 13 publications

The Envelope of Physiological Motion of the First Carpometacarpal Joint

The Envelope of Physiological Motion of the First Carpometacarpal Joint

In Vivo Kinematics of the Thumb Carpometacarpal Joint During Three Isometric Functional Tasks

Effects of distal radius malunion on distal radioulnar joint mechanics—an in vivo study

Contact Info

Product

Resources

About