scholarly journals Diagnostic performance of 3D TSE MRI versus 2D TSE MRI of the knee at 1.5 T, with prompt arthroscopic correlation, in the detection of meniscal and cruciate ligament tears

2016 ◽  
Vol 49 (2) ◽  
pp. 69-74 ◽  
Author(s):  
Francisco Abaeté Chagas-Neto ◽  
Marcello Henrique Nogueira-Barbosa ◽  
Mário Müller Lorenzato ◽  
Rodrigo Salim ◽  
Maurício Kfuri-Junior ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Diagnostic Performance ◽  
Spin Echo ◽  
Cruciate Ligament ◽  
Three Dimensional ◽  
Meniscal Tears ◽  
Turbo Spin Echo ◽  
Turbo Spin ◽  
Anterior Cruciate ◽  
Cruciate Ligament Tears

Abstract Objective: To compare the diagnostic performance of the three-dimensional turbo spin-echo (3D TSE) magnetic resonance imaging (MRI) technique with the performance of the standard two-dimensional turbo spin-echo (2D TSE) protocol at 1.5 T, in the detection of meniscal and ligament tears. Materials and Methods: Thirty-eight patients were imaged twice, first with a standard multiplanar 2D TSE MR technique, and then with a 3D TSE technique, both in the same 1.5 T MRI scanner. The patients underwent knee arthroscopy within the first three days after the MRI. Using arthroscopy as the reference standard, we determined the diagnostic performance and agreement. Results: For detecting anterior cruciate ligament tears, the 3D TSE and routine 2D TSE techniques showed similar values for sensitivity (93% and 93%, respectively) and specificity (80% and 85%, respectively). For detecting medial meniscal tears, the two techniques also had similar sensitivity (85% and 83%, respectively) and specificity (68% and 71%, respectively). In addition, for detecting lateral meniscal tears, the two techniques had similar sensitivity (58% and 54%, respectively) and specificity (82% and 92%, respectively). There was a substantial to almost perfect intraobserver and interobserver agreement when comparing the readings for both techniques. Conclusion: The 3D TSE technique has a diagnostic performance similar to that of the routine 2D TSE protocol for detecting meniscal and anterior cruciate ligament tears at 1.5 T, with the advantage of faster acquisition.

Meniscal tears and associated anterior cruciate ligament tears in athletes: Course of treatment

1984 ◽  
Vol 12 (3) ◽  
pp. 196-198 ◽  
Author(s):  
Giancarlo Puddu ◽  
Andrea Ferretti ◽  
Pierpaolo Mariani ◽  
Francesco La Spesa
Keyword(s):  
Anterior Cruciate Ligament ◽  
Cruciate Ligament ◽  
Meniscal Tears ◽  
Anterior Cruciate ◽  
Cruciate Ligament Tears

scholarly journals The Effect Of Number Of Excitation (Nex) Variation And Blade Technique On T2 Image Quality TSE Sagital Knee MRI

2019 ◽  
Vol 21 (1) ◽  
pp. 32
Author(s):  
Fella Ustia Nirmala
Keyword(s):  
Image Quality ◽  
Spin Echo ◽  
Cruciate Ligament ◽  
Region Of Interest ◽  
Turbo Spin Echo ◽  
Good Image Quality ◽  
Turbo Spin ◽  
Knee Mri ◽  
Noise Ratio ◽  
Anterior Cruciate

ABSTRACT The research has been conducted entitled Influence of Variation Number of Excitation (NEX) and BLADE Technique on Image Quality T2 TSE Sagital Knee MRI. This research was conducted at Haji General Hospital Surabaya by using MRI 1.5 Tesla modalities. The usage of BLADE technique combined with the NEX 1 and NEX 2 variations performed on sagittal tissue of the knee and using a Turbo Spin Echo (TSE) sequence with T2 weighting. Data analysis was done quantitatively by using Region of Interest (ROI) method on MRI computer then analyzed Sinyal to Noise Ratio (SNR) and Contrast to Noise Ratio (CNR). From the research, good image quality result obtained by using BLADE technique on NEX 2 variation with SNR of tissues was 130,71 for Fluid, 5,54 for Meniscus, 12,88 for Anterior Cruciate Ligament (ACL) and 5,95 for Posterior Cruciate Ligament (PCL), whereas the CNR value of tissues was 125.16 for fluid-meniscus, 117.82 for ACL-fluid and 124.76 for fluid-PCL. Keywords : NEX , TSE, T2 weighting, MRI Knee.

Usefulness of high-resolution three-dimensional proton density-weighted turbo spin-echo MRI in distinguishing a junctional dilatation from an intracranial aneurysm of the posterior communicating artery: a pilot study

2019 ◽  
Vol 12 (3) ◽  
pp. 315-319 ◽  
Author(s):  
Sunghan Kim ◽  
Joonho Chung ◽  
Jihoon Cha ◽  
Byung Moon Kim ◽  
Dong Joon Kim ◽  
...  
Keyword(s):  
High Resolution ◽  
Predictive Value ◽  
Diagnostic Performance ◽  
Interobserver Agreement ◽  
Spin Echo ◽  
Three Dimensional ◽  
Proton Density ◽  
Turbo Spin Echo ◽  
Turbo Spin ◽  
Tof Mra

BackgroundDiscriminating a junctional dilatation from a true saccular aneurysm is clinically important.PurposeTo evaluate the usefulness of high-resolution three-dimensional proton density-weighted turbo spin-echo magnetic resonance imaging (PD MRI) in distinguishing a junctional dilatation from an aneurysm of the posterior communicating artery (PcomA).MethodsEighty-two consecutive patients with 83 PcomA lesions, which were evaluated by time-of-flight (TOF) MR angiography (MRA), PD MRI, and digital subtraction angiography (DSA), were enrolled. These radiologic data were retrospectively and independently reviewed by two neurosurgeons, and each diagnosis based on TOF MRA, PD MRI, and DSA was compared. The diagnostic efficacy (interobserver agreement, intermodality agreement, and diagnostic performance) of PD MRI was compared with that of TOF MRA.ResultsPD MRI showed higher AC1 (Gwet’s agreement coefficient, PD MRI: 0.8942, 95% CI 0.8204 to 0.968; TOF MRA: 0.7185, 95% CI 0.5753 to 0.8617) and prevalence-adjusted bias-adjusted kappa coefficient (PABAK) (PD MRI: 0.8554, TOF MRA: 0.5904) than TOF MRA for interobserver agreement. For intermodality agreement, PD MRI also showed higher AC1 (PD MRI: 0.9069, 95% CI 0.8374 to 0.9764; TOF MRA: 0.7983, 95% CI 0.6969 to 0.8996) and PABAK (PD MRI: 0.8735, TOF MRA: 0.7289) than TOF MRA. The diagnostic performance of PD MRI was statistically superior to that of TOF MRA in sensitivity, specificity, positive predictive value, and negative predictive value.ConclusionsPD MRI could provide excellent diagnostic accuracy and better information in distinguishing a junctional dilatation from a true saccular aneurysm of the PcomA compared with TOF MRA.

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