|Fat-Suppressed 3D T1-Weighted Gradient-Echo Imaging of the Cartilage With a Volumetric Interpolated Breath-Hold Examination|
|Zheng, Zhuo-Zhao; Shan, Han; Li, Xuan|
|关键词||cartilage knee joint MRI|
|刊名||AMERICAN JOURNAL OF ROENTGENOLOGY|
|WOS标题词||Science & Technology|
|类目[WOS]||Radiology, Nuclear Medicine & Medical Imaging|
|研究领域[WOS]||Radiology, Nuclear Medicine & Medical Imaging|
|关键词[WOS]||ARTICULAR-CARTILAGE ; HYALINE CARTILAGE ; KNEE-JOINT ; OSTEOARTHRITIS ; MRI ; ARTHROSCOPY ; APPEARANCE ; RESOLUTION ; THICKNESS ; SEQUENCES|
OBJECTIVE. The purpose of our study was to evaluate the feasibility of using fat-suppressed 3D volumetric interpolated breath-hold examination (VIBE) as a substitute for fat-suppressed 3D FLASH in cartilage MRI.
SUBJECTS AND METHODS. Fat-suppressed 3D VIBE and fat-suppressed 3D FLASH were prospectively performed in 82 patients. The acquisition time of these two sequences were 2 minutes 42 seconds and 3 minutes 53 seconds, respectively. Quantitative comparisons were made by calculating signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR), and qualitative comparisons were made on the basis of two subjective scoring systems evaluating image artifacts and cartilage conspicuousness. In addition, in a subgroup of the 43 patients who underwent arthroscopy with cartilage grading, sensitivity and specificity of these two sequences for cartilage lesions were determined in comparison.
RESULTS. Fat-suppressed 3D VIBE provided significantly higher cartilage SNR, cartilage-to-synovial fluid CNR, cartilage-to-meniscus CNR, and cartilage-to-bone marrow CNR than fat-suppressed 3D FLASH. Significantly less pulsation artifact and more severe truncation artifact were seen with fat-suppressed 3D VIBE. Deep cartilage surface conspicuousness in fat-suppressed 3D VIBE was better than that in fat-suppressed 3D FLASH, but superficial conspicuousness was relatively worse. In the patients who underwent arthroscopy, sensitivity and specificity for detecting cartilage lesions of grade 2 or higher were comparable for both sequences, with fat-suppressed 3D VIBE at 78.3% and 97.8% and fat-suppressed 3D FLASH at 79.7% and 97.5%, respectively.
CONCLUSION. Fat-suppressed 3D VIBE is a promising substitute for fat-suppressed 3D FLASH as a more effective T1-weighted sequence in cartilage imaging.
|资助机构||National Science Foundation of China|
|作者单位||Peking Univ, Hosp 3, Dept Radiol, Beijing 100191, Peoples R China|
|Zheng, Zhuo-Zhao,Shan, Han,Li, Xuan. Fat-Suppressed 3D T1-Weighted Gradient-Echo Imaging of the Cartilage With a Volumetric Interpolated Breath-Hold Examination[J]. AMERICAN JOURNAL OF ROENTGENOLOGY,2010,194(5):W414-W419.|
|APA||Zheng, Zhuo-Zhao,Shan, Han,&Li, Xuan.(2010).Fat-Suppressed 3D T1-Weighted Gradient-Echo Imaging of the Cartilage With a Volumetric Interpolated Breath-Hold Examination.AMERICAN JOURNAL OF ROENTGENOLOGY,194(5),W414-W419.|
|MLA||Zheng, Zhuo-Zhao,et al."Fat-Suppressed 3D T1-Weighted Gradient-Echo Imaging of the Cartilage With a Volumetric Interpolated Breath-Hold Examination".AMERICAN JOURNAL OF ROENTGENOLOGY 194.5(2010):W414-W419.|