Studying the effect of noise on the performance of 2D and 3D texture measures for quantifying the trabecular bone structure as obtained with high resolution MR imaging at 3 tesla

Author(s):  
Roberto Monetti ◽  
Jan Bauer ◽  
Dirk Mueller ◽  
Ernst J. Rummeny ◽  
Thomas M. Link ◽  
...  
2002 ◽  
Vol 13 (2) ◽  
pp. 119-129 ◽  
Author(s):  
T. M. Link ◽  
T. M. Link ◽  
T. M. Link ◽  
O. Saborowski ◽  
K. Kisters ◽  
...  

2002 ◽  
Vol 9 (12) ◽  
pp. 1395-1406 ◽  
Author(s):  
Ahi Sema Issever ◽  
Volker Vieth ◽  
Albrecht Lotter ◽  
Norbert Meier ◽  
Andres Laib ◽  
...  

2001 ◽  
Vol 36 (4) ◽  
pp. 210-217 ◽  
Author(s):  
VOLKER VIETH ◽  
THOMAS M. LINK ◽  
ALBRECHT LOTTER ◽  
THORSTEN PERSIGEHL ◽  
DAVID NEWITT ◽  
...  

2005 ◽  
Vol 46 (3) ◽  
pp. 306-309 ◽  
Author(s):  
B. Ludescher ◽  
P. Martirosian ◽  
S. Lenk ◽  
J. Machann ◽  
F. Dammann ◽  
...  

Purpose: To evaluate the feasibility of high‐resolution magnetic resonance imaging (MRI) of trabecular bone of the wrist at 3 Tesla (3T) in vivo and to assess the potential benefit of the increased resolution for clinical assessment of structural changes in spongy bone. Material and Methods: High‐resolution MRI of the wrist was performed with a whole‐body 3T MR scanner using a dedicated circularly polarized transmit–receive wrist‐coil. Two 3D‐FISP sequences with a spatial resolution of 300×300×300 µm3 in a measuring time of TA = 7:51 min, and 200×200×200 µm3 in TA = 9:33 min were applied. Seven young healthy volunteers and three elderly subjects with suspected osteoporosis were examined. The signal‐to‐noise ratio (SNR) in the optimized setup at 3T was compared to measurements at 1.5T. Results: The images at 3T allow microscopic analysis of the bone structure at an isotropic spatial resolution of 200 µm in examination times of <10 min. Differences in the structure of the spongy bone between normal and markedly osteoporotic subjects are well depicted. The SNR at 3T was found up to 16 times higher than at 1.5T applying unchanged imaging parameters. Conclusion: The proposed high‐resolution MRI technique offers high potential in the diagnosis and follow‐up of diseases with impaired bone structure of hand and/or wrist in clinical applications.


1994 ◽  
Vol 4 (6) ◽  
Author(s):  
S. Majumdar ◽  
H.K. Genant ◽  
S. Grampp ◽  
M.D. Jergas ◽  
D.C. Newitt ◽  
...  

Radiology ◽  
2000 ◽  
Vol 217 (3) ◽  
pp. 855-862 ◽  
Author(s):  
Thomas M. Link ◽  
Albrecht Lotter ◽  
Florian Beyer ◽  
Stefan Christiansen ◽  
David Newitt ◽  
...  

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