scholarly journals MR Imaging by Using Very Short Echo–Time Sequences after Syngeneic Lung Transplantation in Mice

Radiology ◽  
2012 ◽  
Vol 265 (3) ◽  
pp. 753-761 ◽  
Author(s):  
Wolfgang Jungraithmayr ◽  
Natalie Chuck ◽  
Thomas Frauenfelder ◽  
Walter Weder ◽  
Andreas Boss
Keyword(s):  
Mr Imaging ◽  
Lung Transplantation ◽  
Echo Time ◽  
Short Echo Time ◽  
Time Sequences

scholarly journals Visualization of Middle Ear Ossicles in Elder Subjects with Ultra-short Echo Time MR Imaging

2017 ◽  
Vol 16 (2) ◽  
pp. 93-97 ◽  
Author(s):  
Shinji Naganawa ◽  
Toshiki Nakane ◽  
Hisashi Kawai ◽  
Toshiaki Taoka ◽  
Kojiro Suzuki ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Middle Ear ◽  
Ear Ossicles ◽  
Echo Time ◽  
Short Echo Time

In Vitro MR Imaging of Renal Stones with an Ultra-short Echo Time Magnetic Resonance Imaging Sequence

2012 ◽  
Vol 19 (12) ◽  
pp. 1566-1572 ◽  
Author(s):  
Aya Yassin ◽  
Ivan Pedrosa ◽  
Michael Kearney ◽  
Elizabeth Genega ◽  
Neil M. Rofsky ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Renal Stones ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Sequence ◽  
Imaging Sequence ◽  
Echo Time ◽  
Short Echo Time

scholarly journals Ultra-short echo time (UTE) MR imaging of the lung: Comparison between normal and emphysematous lungs in mutant mice

2010 ◽  
Vol 32 (2) ◽  
pp. 326-333 ◽  
Author(s):  
Masaya Takahashi ◽  
Osamu Togao ◽  
Makoto Obara ◽  
Marc van Cauteren ◽  
Yoshiharu Ohno ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Mutant Mice ◽  
Echo Time ◽  
Short Echo Time

scholarly journals A Useful Combination of Quantitative Ultrashort Echo Time MR Imaging and a Probing Device for Biomechanical Evaluation of Articular Cartilage

Biosensors ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 52
Author(s):  
Takehito Hananouchi ◽  
Yanjun Chen ◽  
Saeed Jerban ◽  
Masaru Teramoto ◽  
Yajun Ma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mr Imaging ◽  
Linear Regression Analysis ◽  
Reaction Force ◽  
Predictor Variable ◽  
Cartilage Tissue ◽  
Magnetization Transfer Ratio ◽  
Ultrashort Echo Time ◽  
Echo Time

In this study, we combined quantitative ultrashort echo time (UTE) magnetic resonance (MR) imaging and an investigation by a probing device with tri-axial force sensor to seek correlations with mechanical properties of human patellar cartilage for in situ evaluation of biomechanical properties. Cartilage blocks (15 × 20 × 5 mm3) were dissected from the patella of six donors; 5 mm square regions of interest from the cartilage blocks were imaged using UTE-MR imaging sequences (T2* and magnetization transfer ratio (MTR)), and mechanical properties were measured using a micro indentation device. Then, the vertical reaction force on the cartilage surface was measured while push-probing forward 3 mm with the probing device at a 30° tilt to the horizontal plane. The results showed a positive correlation between stiffness/elastic modulus and each predictor variable (UTE-T2* (r = 0.240 and 0.255, respectively, UTE-MTR (r = 0.378 and 0.379, respectively), and probing device force (r = 0.426 and 0.423, respectively). Furthermore, multiple linear regression analysis showed the combination of the three predictors had stronger correlation (adjusted r2 = 0.314 (stiffness), 0.323 (elastic), respectively). Our results demonstrate the potential for these non- and less- invasive methods for in situ evaluation of the mechanical properties of cartilage tissue.

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