Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath?
Tenosynovitis of the digital flexor tendon sheath (DFTS) is diagnosed using ultrasonography and contrast tenography. Nevertheless, making a precise preoperative diagnosis is challenging. This study aimed to determine and compare the sensitivity and specificity of low-field MRI and MRI tenography (MR...
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| Format: | Article |
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MDPI AG
2023-12-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/13/24/3772 |
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| author | Anton Aßmann Stefanie Ohlerth Silvana Hartmann Paul Torgerson Andrea Bischofberger |
| author_facet | Anton Aßmann Stefanie Ohlerth Silvana Hartmann Paul Torgerson Andrea Bischofberger |
| author_sort | Anton Aßmann |
| collection | DOAJ |
| description | Tenosynovitis of the digital flexor tendon sheath (DFTS) is diagnosed using ultrasonography and contrast tenography. Nevertheless, making a precise preoperative diagnosis is challenging. This study aimed to determine and compare the sensitivity and specificity of low-field MRI and MRI tenography (MRIt) to detect artificially created soft-tissue lesions in the DFTS. In 21 DFTSs, 118 lesions were made tenoscopically in the superficial digital flexor tendon (SDFT), deep digital flexor tendon (DDFT), manica flexoria (MF) and proximal scutum. MRI and MRI, following intrathecal gadolinium administration (MRIt), were performed. The sensitivity and specificity of MRI and MRIt were calculated and compared. Proximal scutum lesions were less frequently identified by MRI (Sensitivity 38%, specificity 96%) compared to MRIt (Sensitivity: 50%, <i>p</i> = 0.80; specificity: 96%, <i>p</i> = 1). This was similar for SDFT lesions (Sensitivity: 39% versus 54%, <i>p</i> = 0.72; specificity: 93% versus 96%, <i>p</i> = 1). MRI detected DDFT lesions (sensitivity 34%; specificity 100%) better than MRIt (sensitivity 32%, <i>p</i> = 0.77; specificity 98%, <i>p</i> = 1). This was similar for MF lesions (MRI sensitivity 61%; specificity 100% vs. MRIt sensitivity 50%, <i>p</i> = 0.68; specificity 96%, <i>p</i> = 1). Lesion size was significantly associated with MRI or MRIt diagnosis (<i>p</i> = 0.001). The intrathecal administration of gadolinium did not significantly improve the ability of low-field MRI to diagnose artificial DFTS tendon lesions. Small lesion length was a significant discriminating factor for lesion detection. MRI and MRIt specificity were high, thus being helpful in diagnosing an intact structure. |
| first_indexed | 2024-03-08T21:03:30Z |
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| id | doaj.art-5d82d6240b054e86932235b7f6239cbe |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-08T21:03:30Z |
| publishDate | 2023-12-01 |
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| series | Animals |
| spelling | doaj.art-5d82d6240b054e86932235b7f6239cbe2023-12-22T13:47:18ZengMDPI AGAnimals2076-26152023-12-011324377210.3390/ani13243772Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath?Anton Aßmann0Stefanie Ohlerth1Silvana Hartmann2Paul Torgerson3Andrea Bischofberger4Equine Hospital, Vetsuisse-Faculty, University of Zürich, 8057 Zürich, SwitzerlandClinic of Diagnostic Imaging, Vetsuisse-Faculty, University of Zürich, 8057 Zürich, SwitzerlandEquine Hospital, Vetsuisse-Faculty, University of Zürich, 8057 Zürich, SwitzerlandSection of Veterinary Epidemiology, Vetsuisse-Faculty, University of Zürich, 8057 Zürich, SwitzerlandClinic of Diagnostic Imaging, Vetsuisse-Faculty, University of Zürich, 8057 Zürich, SwitzerlandTenosynovitis of the digital flexor tendon sheath (DFTS) is diagnosed using ultrasonography and contrast tenography. Nevertheless, making a precise preoperative diagnosis is challenging. This study aimed to determine and compare the sensitivity and specificity of low-field MRI and MRI tenography (MRIt) to detect artificially created soft-tissue lesions in the DFTS. In 21 DFTSs, 118 lesions were made tenoscopically in the superficial digital flexor tendon (SDFT), deep digital flexor tendon (DDFT), manica flexoria (MF) and proximal scutum. MRI and MRI, following intrathecal gadolinium administration (MRIt), were performed. The sensitivity and specificity of MRI and MRIt were calculated and compared. Proximal scutum lesions were less frequently identified by MRI (Sensitivity 38%, specificity 96%) compared to MRIt (Sensitivity: 50%, <i>p</i> = 0.80; specificity: 96%, <i>p</i> = 1). This was similar for SDFT lesions (Sensitivity: 39% versus 54%, <i>p</i> = 0.72; specificity: 93% versus 96%, <i>p</i> = 1). MRI detected DDFT lesions (sensitivity 34%; specificity 100%) better than MRIt (sensitivity 32%, <i>p</i> = 0.77; specificity 98%, <i>p</i> = 1). This was similar for MF lesions (MRI sensitivity 61%; specificity 100% vs. MRIt sensitivity 50%, <i>p</i> = 0.68; specificity 96%, <i>p</i> = 1). Lesion size was significantly associated with MRI or MRIt diagnosis (<i>p</i> = 0.001). The intrathecal administration of gadolinium did not significantly improve the ability of low-field MRI to diagnose artificial DFTS tendon lesions. Small lesion length was a significant discriminating factor for lesion detection. MRI and MRIt specificity were high, thus being helpful in diagnosing an intact structure.https://www.mdpi.com/2076-2615/13/24/3772digital flexor tendon sheathlow-field MRItenographygadoliniumdeep digital flexor tendonsuperficial digital flexor tendon |
| spellingShingle | Anton Aßmann Stefanie Ohlerth Silvana Hartmann Paul Torgerson Andrea Bischofberger Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath? Animals digital flexor tendon sheath low-field MRI tenography gadolinium deep digital flexor tendon superficial digital flexor tendon |
| title | Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath? |
| title_full | Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath? |
| title_fullStr | Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath? |
| title_full_unstemmed | Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath? |
| title_short | Does Direct MRI Tenography Improve the Diagnostic Performance of Low-Field MRI to Identify Artificially Created Soft-Tissue Lesions within the Equine Cadaveric Digital Flexor Tendon Sheath? |
| title_sort | does direct mri tenography improve the diagnostic performance of low field mri to identify artificially created soft tissue lesions within the equine cadaveric digital flexor tendon sheath |
| topic | digital flexor tendon sheath low-field MRI tenography gadolinium deep digital flexor tendon superficial digital flexor tendon |
| url | https://www.mdpi.com/2076-2615/13/24/3772 |
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