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Imaging near metal with a MAVRIC‐SEMAC hybrid
The recently developed multi‐acquisition with variable resonance image combination (MAVRIC) and slice‐encoding metal artifact correction (SEMAC) techniques can significantly reduce image artifacts… Expand
Sequential wear patterns of the articular cartilage of the thumb carpometacarpal joint in osteoarthritis.
- M. Koff, Obinwanne F C Ugwonali, R. Strauch, M. Rosenwasser, G. Ateshian, V. Mow
- Chemistry, Medicine
- The Journal of hand surgery
- 1 July 2003
PURPOSE The thumb carpometacarpal (CMC) joint is a primary location for osteoarthritis (OA) in the body; however, articular cartilage thickness distribution during progression of OA in the joint has… Expand
Effect of local alignment on compartmental patterns of knee osteoarthritis.
- F. Khan, M. Koff, +5 authors K. Kaufman
- The Journal of bone and joint surgery. American…
- 1 September 2008
BACKGROUND Previous studies have shown that lower-extremity malalignment increases the risk and rate of progression of knee osteoarthritis. The authors of such studies have used full-length… Expand
Image based weighted center of proximity versus directly measured knee contact location during simulated gait.
To understand the mechanical consequences of knee injury requires a detailed analysis of the effect of that injury on joint contact mechanics during activities of daily living. Three-dimensional (3D)… Expand
Effects of ankle-foot orthoses on ankle and foot kinematics in patient with ankle osteoarthritis.
- Yu-chi Huang, Kimberly Harbst, +4 authors K. Kaufman
- Archives of physical medicine and rehabilitation
OBJECTIVE To determine if different foot orthoses have a similar effect on foot kinematics in subjects with ankle osteoarthritis (OA) when walking on various ground conditions. DESIGN… Expand
Magnetic resonance imaging of the postoperative hip
Magnetic resonance imaging (MRI) is ideally suited to imaging the patient with painful hip arthroplasty due to its superior soft tissue contrast, multiplanar capabilities, and lack of ionizing… Expand
Quantifying image distortion of orthopedic materials in magnetic resonance imaging
- M. Koff, P. Shah, K. Koch, H. Potter
- Journal of magnetic resonance imaging : JMRI
- 1 September 2013
To determine the magnitude of image distortion between two‐dimensional (2D) fast‐spin‐echo (FSE) images and 3D‐MAVRIC by using a phantom with samples of common materials used in total joint… Expand
Correlation of meniscal T2* with multiphoton microscopy, and change of articular cartilage T2 in an ovine model of meniscal repair.
OBJECTIVE To correlate meniscal T2* relaxation times using ultra-short echo time (UTE) magnetic resonance imaging (MRI) with quantitative microscopic methods, and to determine the effect of meniscal… Expand
An in vitro analysis of ligament reconstruction or extension osteotomy on trapeziometacarpal joint stability and contact area.
- M. Koff, Niket Shrivastava, T. R. Gardner, M. Rosenwasser, V. Mow, R. Strauch
- The Journal of hand surgery
- 1 March 2006
PURPOSE Painful instability of the minimally osteoarthritic thumb carpometacarpal (CMC) joint can be treated successfully by either ligament reconstruction or metacarpal extension osteotomy. The… Expand
High-Resolution Methods for Diagnosing Cartilage Damage In Vivo
- K. Novakofski, S. Pownder, M. Koff, R. Williams, H. Potter, L. Fortier
- 1 January 2016
Advances in current clinical modalities, including magnetic resonance imaging and computed tomography, allow for earlier diagnoses of cartilage damage that could mitigate progression to… Expand