Magnetic resonance in cartilaginous lesions of the knee joint with three-dimensional gradient-echo imaging

1988 ◽  
Vol 17 (7) ◽  
pp. 465-471 ◽  
Author(s):  
Maximilian F. Reiser ◽  
Georg Bongartz ◽  
Rainer Erlemann ◽  
Michael Strobel ◽  
Thomas Pauly ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Knee Joint ◽  
Three Dimensional ◽  
Gradient Echo ◽  
Gradient Echo Imaging

In Vivo Tracking of the Human Patella Using Cine Phase Contrast Magnetic Resonance Imaging

1999 ◽  
Vol 121 (6) ◽  
pp. 650-656 ◽  
Author(s):  
F. T. Sheehan ◽  
F. E. Zajac ◽  
J. E. Drace
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Phase Contrast ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Contrast Magnetic Resonance ◽  
Knee Joint Kinematics ◽  
Cine Phase Contrast

Improper patellar tracking is often considered to be the cause of patellar-femoral pain. Unfortunately, our knowledge of patellar-femoral-tibial (knee) joint kinematics is severely limited due to a lack of three-dimensional, noninvasive, in vivo measurement techniques. This study presents the first large-scale, dynamic, three-dimensional, noninvasive, in vivo study of nonimpaired knee joint kinematics during volitional leg extensions. Cine-phase contrast magnetic resonance imaging was used to measure the velocity profiles of the patella, femur, and tibia in 18 unimpaired knees during leg extensions, resisted by a 34 N weight. Bone displacements were calculated through integration and then converted into three-dimensional orientation angles. We found that the patella displaced laterally, superiorly, and anteriorly as the knee extended. Further, patellar flexion lagged knee flexion, patellar tilt was variable, and patellar rotation was fairly constant throughout extension.

Optimization of three-dimensional T1-weighted gradient-echo imaging of the cervical spine

1992 ◽  
Vol 2 (3) ◽  
pp. 359-364 ◽  
Author(s):  
Jeffrey S. Ross ◽  
Jean A. Tkach ◽  
John Dillinger ◽  
Paul M. Ruggieri ◽  
Thomas J. Masaryk ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Three Dimensional ◽  
Gradient Echo ◽  
Gradient Echo Imaging
Sign in / Sign up

Export Citation Format

Share Document