A UHF probe for NMR micro‐imaging experiments

Fan, Mingwu; Gonord, P.; Kan, Siew-Kwong; Taquin, J.

doi:10.1002/mrm.1910040610

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…The coil was a single-turn solenoid radio frequency (RF) coil that was built in-house (for the principle of RF coils, see Fan et al 1987), with a diameter of 30 mm and 12 mm in length.…”

Section: Methodsmentioning

confidence: 99%

Some aspects of rat femorotibial joint microanatomy as demonstrated by high-resolution magnetic resonance imaging

et al. 2006

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SummaryHigh-resolution magnetic resonance images (MRI) of the right femorotibial joint of normal Han:Wistar rats were acquired using a 4.7 Tesla magnet and a single-turn solenoid radio frequency coil (built in-house). Some anatomical findings of the rat femorotibial joint, which have not been reported previously using MRI, are described. The separation of patellar ligament and crural fascia was feasible on MRI. This separation would not be seen on images of lower resolution and its presence on high-resolution images could be mistaken for artefact due to the magic angle effect. Band-like fibrous structures exist in the infra-patellar fat pad, which might be mistaken as ligaments within the femorotibial joint. On sagittal MRI a vessel was seen inserted on the central part of the caudal surface of the patellar ligament. Subcutaneous fascia/cutaneous muscles (panniculus carnosus) could also be demonstrated with MRI in the femorotibial joint area.

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“…The coil was a single-turn solenoid radio frequency (RF) coil that was built in-house (for the principle of RF coils, see Fan et al 1987), with a diameter of 30 mm and 12 mm in length.…”

Section: Methodsmentioning

confidence: 99%

Some aspects of rat femorotibial joint microanatomy as demonstrated by high-resolution magnetic resonance imaging

et al. 2006

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“…The RF coils are usually home-made, or made by some small specialist companies. The most commonly used is the single-turn solenoid RF coil (for the principle of these RF coils, see Fan et al 1987). They are designed to open at the top.…”

Section: Mr Techniques For Animal Knee Imagingmentioning

confidence: 99%

In vivo magnetic resonance imaging of animal models of knee osteoarthritis

Wáng

2008

Lab Anim

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SummaryRecent technical developments in high-field magnetic resonance (MR) scanners, improvement in radio frequency coil design and gradient performance along with the development of efficient pulse sequences and new methods of enhancing contrast have made high-quality imaging of animal arthritis models feasible. MR can provide high-resolution structural information about the osteoarthritic changes in animal models, and also information about the biophysical properties of cartilage. This paper reviews the MR techniques available for animal knee imaging, and the various MR-derived readouts of knee osteoarthritis in animal models. Pitfalls in interpreting animal joint anatomy and joint composition are highlighted.

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“…The MR scanner was a 4.7-T Varian horizontal MR system (Varian Inc, Palo Alto, CA, USA) equipped with a gradient of 200 mT/m (Oxford Instruments, Oxford, UK). The radiofrequency coil was an inhouse-built single-turn solenoid RF coil (for its principle, see Fan et al 1987), 15 mm in diameter and 25 mm in length.…”

Section: Methodsmentioning

confidence: 99%

Fluid collection within the synovial sheath of the tendon of the flexor hallus longus muscle in the tarsal joint of rats: an anatomic variant detectable with magnetic resonance imaging

Wáng

Westwood

2006

Lab Anim

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Magnetic resonance (MR) images of the right tarsal joint of 22 normal male Han:Wistar rats were acquired using a 4.7 T magnet. An intermediate-high signal area associated with the tendon of the flexor hallus longus muscle was noticed in three rats on T2-weighted images. These areas appeared as an intermediate-high signal on lightly T2-weighted images, but appeared as an iso-signal to muscle structure on proton density weighted images. Histology preparations showed that such areas were caused by a sizable fluid collection within the synovial sheath of the tendon of the flexor hallus longus muscle, with all other joint structures appearing normal. This anatomic variant could be potentially regarded as a lesion on T2-weighted MR images, such as inflamed tissue with oedema, especially when the spatial resolution and/or signal-to-noise ratio are not optimal.

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A UHF probe for NMR micro‐imaging experiments

Cited by 7 publications

References 11 publications

Some aspects of rat femorotibial joint microanatomy as demonstrated by high-resolution magnetic resonance imaging

Some aspects of rat femorotibial joint microanatomy as demonstrated by high-resolution magnetic resonance imaging

In vivo magnetic resonance imaging of animal models of knee osteoarthritis

Fluid collection within the synovial sheath of the tendon of the flexor hallus longus muscle in the tarsal joint of rats: an anatomic variant detectable with magnetic resonance imaging

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