Abstract
Purpose: This study was done to test a series of MR sequences for evaluating the sciatic nerve after total hip arthroplasty (THA). Material and Methods: The study protocol was approved by the institutional review board. Informed consent was obtained from all patients. Twenty-five patients (11 men and 14 women mean age: 62.3±5.7 years) with THA were included in this prospective study. MRI protocol included sequences that were preliminarily tailored for nerve imaging in patients with THA: proton density (PD)-weighted turbo SE, T1-weighted turbo SE (TSE) 3 mm thickness, T1-weighted turbo SE (TSE) 6 mm thickness, T1-weighted turbo SE with high bandwidth (TSE hBW), T2- weighted TSE, T2-weighted with fat saturation and short-tau inversion recovery (STIR). For each sequence, we evaluated the visibility of the sciatic nerve using a semiquantitative score (0=total masking; 1=insufficient visibility; 2=sufficient visibility; 3=optimal visibility). The sum of the scores given to each sequence was divided by the maximal sum, obtaining a percentage visibility index. Friedman and sign tests were used for statistical analysis. Results: MR examination time was approximately 40 min. No patients reported pain, heat or symptoms related to nerve stimulation. The visibility index ranged between 88% and 70% for the first four sequences. The T1-weighted TSE hBW sequence had the best visibility index (P
| Original language | English |
|---|---|
| Pages (from-to) | 1319-1326 |
| Number of pages | 8 |
| Journal | Magnetic Resonance Imaging |
| Volume | 28 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Nov 2010 |
Fingerprint
Keywords
- 1.5-T MRI
- Total hip arthroplasty: Sciatic nerve
ASJC Scopus subject areas
- Biophysics
- Radiology Nuclear Medicine and imaging
- Biomedical Engineering
Cite this
MR Imaging of total hip arthroplasty : Comparison among sequences to study the sciatic nerve at 1.5 T. / Tagliafico, Alberto; Podestà, Andrea; Assini, Andrea; Boccacini, Leonardo; Serafini, Giovanni; Calabrese, Massimo; Martinoli, Carlo.
In: Magnetic Resonance Imaging, Vol. 28, No. 9, 11.2010, p. 1319-1326.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - MR Imaging of total hip arthroplasty
T2 - Comparison among sequences to study the sciatic nerve at 1.5 T
AU - Tagliafico, Alberto
AU - Podestà, Andrea
AU - Assini, Andrea
AU - Boccacini, Leonardo
AU - Serafini, Giovanni
AU - Calabrese, Massimo
AU - Martinoli, Carlo
PY - 2010/11
Y1 - 2010/11
N2 - Purpose: This study was done to test a series of MR sequences for evaluating the sciatic nerve after total hip arthroplasty (THA). Material and Methods: The study protocol was approved by the institutional review board. Informed consent was obtained from all patients. Twenty-five patients (11 men and 14 women mean age: 62.3±5.7 years) with THA were included in this prospective study. MRI protocol included sequences that were preliminarily tailored for nerve imaging in patients with THA: proton density (PD)-weighted turbo SE, T1-weighted turbo SE (TSE) 3 mm thickness, T1-weighted turbo SE (TSE) 6 mm thickness, T1-weighted turbo SE with high bandwidth (TSE hBW), T2- weighted TSE, T2-weighted with fat saturation and short-tau inversion recovery (STIR). For each sequence, we evaluated the visibility of the sciatic nerve using a semiquantitative score (0=total masking; 1=insufficient visibility; 2=sufficient visibility; 3=optimal visibility). The sum of the scores given to each sequence was divided by the maximal sum, obtaining a percentage visibility index. Friedman and sign tests were used for statistical analysis. Results: MR examination time was approximately 40 min. No patients reported pain, heat or symptoms related to nerve stimulation. The visibility index ranged between 88% and 70% for the first four sequences. The T1-weighted TSE hBW sequence had the best visibility index (P
AB - Purpose: This study was done to test a series of MR sequences for evaluating the sciatic nerve after total hip arthroplasty (THA). Material and Methods: The study protocol was approved by the institutional review board. Informed consent was obtained from all patients. Twenty-five patients (11 men and 14 women mean age: 62.3±5.7 years) with THA were included in this prospective study. MRI protocol included sequences that were preliminarily tailored for nerve imaging in patients with THA: proton density (PD)-weighted turbo SE, T1-weighted turbo SE (TSE) 3 mm thickness, T1-weighted turbo SE (TSE) 6 mm thickness, T1-weighted turbo SE with high bandwidth (TSE hBW), T2- weighted TSE, T2-weighted with fat saturation and short-tau inversion recovery (STIR). For each sequence, we evaluated the visibility of the sciatic nerve using a semiquantitative score (0=total masking; 1=insufficient visibility; 2=sufficient visibility; 3=optimal visibility). The sum of the scores given to each sequence was divided by the maximal sum, obtaining a percentage visibility index. Friedman and sign tests were used for statistical analysis. Results: MR examination time was approximately 40 min. No patients reported pain, heat or symptoms related to nerve stimulation. The visibility index ranged between 88% and 70% for the first four sequences. The T1-weighted TSE hBW sequence had the best visibility index (P
KW - 1.5-T MRI
KW - Total hip arthroplasty: Sciatic nerve
UR - http://www.scopus.com/inward/record.url?scp=77958188415&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77958188415&partnerID=8YFLogxK
U2 - 10.1016/j.mri.2010.06.009
DO - 10.1016/j.mri.2010.06.009
M3 - Article
C2 - 20688450
AN - SCOPUS:77958188415
VL - 28
SP - 1319
EP - 1326
JO - Magnetic Resonance Imaging
JF - Magnetic Resonance Imaging
SN - 0730-725X
IS - 9
ER -