In equine medicine, experience regarding MRI of chronic tendon lesions is limited, and
evidence on the suitability of different sequences in 3 T high-field MRI is scarce. Therefore, macroscopically
healthy and altered tendons were examined by histology and in 0.27 T low- and 3 T
high-field MRI, focusing on T1-weighted (T1w) sequences to visualize chronic lesions. In high-field
MRI, tendons were positioned parallel (horizontal) and perpendicular (vertical) to the magnetic field,
acknowledging the possible impact of the magic angle effect. The images were evaluated qualitatively
and signal intensities were measured for quantitative analysis. Qualitative evaluation was consistent
with the quantitative results, yet there were differences in lesion detection between the sequences.
The low-field T1w GRE sequence and high-field T1w FLASH sequence with vertically positioned
tendons displayed all tendon lesions. However, the horizontally scanned high-field T1w SE sequence
failed to detect chronic tendon lesions. The agreement regarding tendon signal intensities was higher
between high-field sequences scanned in the same orientation (horizontal or vertical) than between
the same types of sequence (SE or FLASH), demonstrating the impact of tendon positioning. Vertical
scanning was superior for diagnosis of the tendon lesions, suggesting that the magic angle effect
plays a major role in detecting chronic tendon disease.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:87517 |
| Date | 20 October 2023 |
| Creators | Doll, Carla Ulrike, von Pückler, Kerstin, Offhaus, Julia, Berner, Dagmar, Burk, Janina |
| Publisher | MDPI |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 297 |
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