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Diagnostic performance of 3D SPACE for comprehensive knee joint assessment at 3 T

(2012) INSIGHTS INTO IMAGING. 3(6). p.603-610
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Abstract
OBJECTIVE: To assess the diagnostic performance of 3D sampling perfection with application-optimised contrasts using variable flip-angle evolution (SPACE) turbo spin-echo (TSE) sequences compared to 2D TSE for comprehensive knee assessment at 3 T. METHODS: From January to July 2011, isotropic 3D SPACE was added to a 2D knee protocol at 3 T. Forty patients underwent subsequent arthroscopy. Three readers independently assessed MR images for meniscus, anterior cruciate ligament (ACL) and cartilage lesions. Readers 1 and 2 evaluated 3D and 2D data at separate sittings; reader 3 interpreted the complete exam including 3D and 2D sequences. Accuracies were calculated using arthroscopy as reference standard. McNemar's test (p < 0.05) was used to compare 3D and 2D techniques. RESULTS: The highest diagnostic yield was obtained by reader 3 (accuracies ≥88 %). For the medial meniscus, readers performed better with the 2D technique than with 3D SPACE (accuracies 85-88 % vs. 78-80 %, respectively) (p > 0.05). For the lateral meniscus and ACL, 3D and 2D techniques had similar performance (accuracies ≥93 %). For cartilage lesions, 3D SPACE had significantly lower specificity (p = 0.0156) than the 2D protocol for one reader. CONCLUSION: The conventional 2D TSE acquisition is more reliable than 3D SPACE for comprehensive assessment of the knee at 3.0 T. MAIN MESSAGES : • 3D SPACE is a valuable component of a knee MR protocol at 3 T. • 3D SPACE cannot be used as a single sequence in the MR evaluation of the knee at 3 T. • Knee MR protocols at 3 T should include both 2D and 3D TSE sequences.

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MLA
Van Dyck, Pieter, Jan L Gielen, Filip Vanhoenacker, et al. “Diagnostic Performance of 3D SPACE for Comprehensive Knee Joint Assessment at 3 T.” INSIGHTS INTO IMAGING 3.6 (2012): 603–610. Print.
APA
Van Dyck, Pieter, Gielen, J. L., Vanhoenacker, F., De Smet, E., Wouters, K., Dossche, L., & Parizel, P. M. (2012). Diagnostic performance of 3D SPACE for comprehensive knee joint assessment at 3 T. INSIGHTS INTO IMAGING, 3(6), 603–610.
Chicago author-date
Van Dyck, Pieter, Jan L Gielen, Filip Vanhoenacker, Eline De Smet, Kristien Wouters, Lieven Dossche, and Paul M Parizel. 2012. “Diagnostic Performance of 3D SPACE for Comprehensive Knee Joint Assessment at 3 T.” Insights into Imaging 3 (6): 603–610.
Chicago author-date (all authors)
Van Dyck, Pieter, Jan L Gielen, Filip Vanhoenacker, Eline De Smet, Kristien Wouters, Lieven Dossche, and Paul M Parizel. 2012. “Diagnostic Performance of 3D SPACE for Comprehensive Knee Joint Assessment at 3 T.” Insights into Imaging 3 (6): 603–610.
Vancouver
1.
Van Dyck P, Gielen JL, Vanhoenacker F, De Smet E, Wouters K, Dossche L, et al. Diagnostic performance of 3D SPACE for comprehensive knee joint assessment at 3 T. INSIGHTS INTO IMAGING. 2012;3(6):603–10.
IEEE
[1]
P. Van Dyck et al., “Diagnostic performance of 3D SPACE for comprehensive knee joint assessment at 3 T,” INSIGHTS INTO IMAGING, vol. 3, no. 6, pp. 603–610, 2012.
@article{3068040,
  abstract     = {OBJECTIVE: To assess the diagnostic performance of 3D sampling perfection with application-optimised contrasts using variable flip-angle evolution (SPACE) turbo spin-echo (TSE) sequences compared to 2D TSE for comprehensive knee assessment at 3 T.
METHODS: From January to July 2011, isotropic 3D SPACE was added to a 2D knee protocol at 3 T. Forty patients underwent subsequent arthroscopy. Three readers independently assessed MR images for meniscus, anterior cruciate ligament (ACL) and cartilage lesions. Readers 1 and 2 evaluated 3D and 2D data at separate sittings; reader 3 interpreted the complete exam including 3D and 2D sequences. Accuracies were calculated using arthroscopy as reference standard. McNemar's test (p < 0.05) was used to compare 3D and 2D techniques.
RESULTS: The highest diagnostic yield was obtained by reader 3 (accuracies ≥88 %). For the medial meniscus, readers performed better with the 2D technique than with 3D SPACE (accuracies 85-88 % vs. 78-80 %, respectively) (p > 0.05). For the lateral meniscus and ACL, 3D and 2D techniques had similar performance (accuracies ≥93 %). For cartilage lesions, 3D SPACE had significantly lower specificity (p = 0.0156) than the 2D protocol for one reader.
CONCLUSION: The conventional 2D TSE acquisition is more reliable than 3D SPACE for comprehensive assessment of the knee at 3.0 T. MAIN MESSAGES : • 3D SPACE is a valuable component of a knee MR protocol at 3 T. • 3D SPACE cannot be used as a single sequence in the MR evaluation of the knee at 3 T. • Knee MR protocols at 3 T should include both 2D and 3D TSE sequences.},
  author       = {Van Dyck, Pieter and Gielen, Jan L and Vanhoenacker, Filip and De Smet, Eline and Wouters, Kristien and Dossche, Lieven and Parizel, Paul M},
  issn         = {1869-4101},
  journal      = {INSIGHTS INTO IMAGING},
  language     = {eng},
  number       = {6},
  pages        = {603--610},
  title        = {Diagnostic performance of 3D SPACE for comprehensive knee joint assessment at 3 T},
  url          = {http://dx.doi.org/10.1007/s13244-012-0197-5},
  volume       = {3},
  year         = {2012},
}

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