Comparison between T2‐weighted two‐dimensional and three‐dimensional fast spin‐echo MRI sequences for characterizing thoracolumbar intervertebral disc disease in small‐breed dogs

2022 ◽  
Author(s):  
Suhyeon Lee ◽  
Jeongyeon Hwang ◽  
Jaeeun Ko ◽  
Jeongyun Jeong ◽  
Kidong Eom ◽  
...  
Keyword(s):  
Intervertebral Disc ◽  
Spin Echo ◽  
Three Dimensional ◽  
Fast Spin Echo ◽  
Two Dimensional ◽  
Intervertebral Disc Disease ◽  
Disc Disease ◽  
Mri Sequences ◽  
Fast Spin ◽  
Small Breed

Diagnosis of acetabular labral tears: Comparison of three-dimensional intermediate-weighted fast spin-echo MR arthrography with two-dimensional MR arthrography at 3.0 T

2013 ◽  
Vol 54 (1) ◽  
pp. 75-82 ◽  
Author(s):  
So Young Park ◽  
Ji Seon Park ◽  
Wook Jin ◽  
Kee Hyung Rhyu ◽  
Kyung Nam Ryu
Keyword(s):  
Spin Echo ◽  
Mr Arthrography ◽  
Three Dimensional ◽  
Observer Agreement ◽  
Fast Spin Echo ◽  
Two Dimensional ◽  
Observer Reliability ◽  
Labral Tears ◽  
Arthroscopic Findings ◽  
Fast Spin

Background Magnetic resonance (MR) arthrography is the ideal imaging modality for the acetabular labrum. Three-dimensional (3D) fast spin-echo (FSE) sequences have similar diagnostic performance as two-dimensional (2D) conventional MR imaging for ligaments, menisci, or bone marrow edema in the knee. Purpose To compare the diagnostic accuracy and inter-observer reliability of 3D intermediate-weighted FSE sequence and 2D FSE sequences for the diagnosis of acetabular labral tears. Material and Methods Institutional review board approval was obtained and informed consent was waived for 45 patients (47 hips) who underwent 3D and 2D MR arthrography and subsequent arthroscopic surgery. The 3D sequences were performed using volumetric intermediate-weighted fast spin-echo imaging with fat suppression (voxel size, 0.6 × 0.6 × 1.2 mm; imaging time, 6 min 38 s). Labral tear was retrospectively and independently evaluated by two radiologists in four areas of the labrum (anterosuperior, posterosuperior, anteroinferior, and posteroinferior) on 3D and 2D FSE sequences. Statistical differences between the sensitivity and specificity of the methods were analyzed with the McNemar test, using arthroscopic findings as the reference standard. Inter-observer agreement was calculated using kappa statistics. Results Arthroscopic findings confirmed labral tears at 40 anterosuperior, 23 posterosuperior, 0 anteroinferior, and 2 posteroinferior quadrants. Sensitivity and specificity were 74% and 89% for 2D FSE sequences, and 78% and 92% for 3D FSE sequences, respectively. Sensitivities and specificities for the methods were not different statistically (P > 0.05). Inter-observer agreement for labral tear was substantial for 2D FSE sequences (k = 0.774) and almost perfect for 3D FSE sequences (k = 0.842). Conclusion 3D intermediate-weighted FSE MR arthrography is excellent for diagnosing acetabular labral tears. Sensitivity, specificity, and inter-observer reliability were similar to conventional 2D MR arthrography. For evaluation of the labrum, 3D FSE MR arthrography is more time-efficient than 2D FSE MR arthrography.

scholarly journals Comparison of conventional fast spin echo, single-shot two-dimensional and three-dimensional half-fourier RARE for T2-weighted female pelvic imaging

2004 ◽  
Vol 19 (3) ◽  
pp. 349-355 ◽  
Author(s):  
Hiroshi Sugimura ◽  
Kenichiro Yamaguchi ◽  
Eiji Furukoji ◽  
Shozo Tamura ◽  
Tatefumi Sakae ◽  
...  
Keyword(s):  
Spin Echo ◽  
Three Dimensional ◽  
Fast Spin Echo ◽  
Single Shot ◽  
Two Dimensional ◽  
Pelvic Imaging ◽  
Fast Spin
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