Abstract
Seven isolated equine front limbs were used to establish the normal T1 relaxation time of equine superficial digital flexor tendon (SDFT), deep digital flexor tendon (DDFT), and suspensory ligament (SL) using magic angle magnetic resonance (MR) imaging. MR imaging of the metacarpi was performed with the limbs positioned at 55° (the magic angle) relative to the main magnetic field. Transverse spin-echo proton density and inversion recovery images were acquired. T1 relaxation time was calculated based on ratios of signal intensity determined from the different pulse sequences. T1 relaxation times for SDFT, DDFT, and SL were 288 (±17), 244 (±14), and 349 (±16) ms, respectively. The difference in T1 values between SDFT, DDFT, and SL was statistically significant. T1 values of equine tendons can be determined with magic angle imaging on a clinical MR system using <10 min total scan time. The knowledge of the normal range of T1 values may be useful to identify horses with chronic tendinopathy, where based on the human literature, an increased T1 value may be expected.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 149-153 |
| Number of pages | 5 |
| Journal | Veterinary Radiology and Ultrasound |
| Volume | 52 |
| Issue number | 2 |
| DOIs | |
| State | Published - Mar 2011 |
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Keywords
- Horses
- Magic angle
- MR
- T1 relaxation time
- Tendon
ASJC Scopus subject areas
- veterinary(all)
Cite this
Determination of t1 relaxation time of normal equine tendons using magic angle magnetic resonance imaging. / Spriet, Mathieu; Wisner, Erik R; Anthenill, Lucy A.; Buonocore, Michael H.
In: Veterinary Radiology and Ultrasound, Vol. 52, No. 2, 03.2011, p. 149-153.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Determination of t1 relaxation time of normal equine tendons using magic angle magnetic resonance imaging
AU - Spriet, Mathieu
AU - Wisner, Erik R
AU - Anthenill, Lucy A.
AU - Buonocore, Michael H.
PY - 2011/3
Y1 - 2011/3
N2 - Seven isolated equine front limbs were used to establish the normal T1 relaxation time of equine superficial digital flexor tendon (SDFT), deep digital flexor tendon (DDFT), and suspensory ligament (SL) using magic angle magnetic resonance (MR) imaging. MR imaging of the metacarpi was performed with the limbs positioned at 55° (the magic angle) relative to the main magnetic field. Transverse spin-echo proton density and inversion recovery images were acquired. T1 relaxation time was calculated based on ratios of signal intensity determined from the different pulse sequences. T1 relaxation times for SDFT, DDFT, and SL were 288 (±17), 244 (±14), and 349 (±16) ms, respectively. The difference in T1 values between SDFT, DDFT, and SL was statistically significant. T1 values of equine tendons can be determined with magic angle imaging on a clinical MR system using <10 min total scan time. The knowledge of the normal range of T1 values may be useful to identify horses with chronic tendinopathy, where based on the human literature, an increased T1 value may be expected.
AB - Seven isolated equine front limbs were used to establish the normal T1 relaxation time of equine superficial digital flexor tendon (SDFT), deep digital flexor tendon (DDFT), and suspensory ligament (SL) using magic angle magnetic resonance (MR) imaging. MR imaging of the metacarpi was performed with the limbs positioned at 55° (the magic angle) relative to the main magnetic field. Transverse spin-echo proton density and inversion recovery images were acquired. T1 relaxation time was calculated based on ratios of signal intensity determined from the different pulse sequences. T1 relaxation times for SDFT, DDFT, and SL were 288 (±17), 244 (±14), and 349 (±16) ms, respectively. The difference in T1 values between SDFT, DDFT, and SL was statistically significant. T1 values of equine tendons can be determined with magic angle imaging on a clinical MR system using <10 min total scan time. The knowledge of the normal range of T1 values may be useful to identify horses with chronic tendinopathy, where based on the human literature, an increased T1 value may be expected.
KW - Horses
KW - Magic angle
KW - MR
KW - T1 relaxation time
KW - Tendon
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UR - http://www.scopus.com/inward/citedby.url?scp=79952478811&partnerID=8YFLogxK
U2 - 10.1111/j.1740-8261.2010.01753.x
DO - 10.1111/j.1740-8261.2010.01753.x
M3 - Article
C2 - 21388465
AN - SCOPUS:79952478811
VL - 52
SP - 149
EP - 153
JO - Veterinary Radiology and Ultrasound
JF - Veterinary Radiology and Ultrasound
SN - 1058-8183
IS - 2
ER -