MR imaging of meniscal tears: comparison of intermediate-weighted FRFSE imaging with intermediate-weighted FSE imaging

Tokuda, Osamu; Harada, Yasuhiro; Ueda, T; Iida, Etsushi; Shiraishi, Gen; Motomura, Tetsuhisa; Fukuda, Kouji; Matsunaga, Naofumi

doi:10.1007/s11604-012-0108-1

Cited by 3 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The consequences of a false positive finding are serious and can cause unnecessary arthroscopy or arthrotomy, which increases operation pains and economic burden for patients. Various possible complications could be generated because of unnecessary operations (De Smet and Tuite, 2006;Kijowski et al, 2011;Tokuda et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Accuracy of low-field MRI on meniscal tears

2014

View full text Add to dashboard Cite

ABSTRACT. This study aimed to verify the accuracy of lowfield-intensity magnetic resonance imaging (MRI) in diagnosing meniscus tears. A total of 171 patients were examined through low-field-intensity MRI to detect meniscus injuries. These patients were then diagnosed through arthroscopy. Examination results were recorded and compared. The accuracy of the diagnosis for internal and external meniscus tears through low-field-intensity MRI was 95.91% and 95.91%, respectively, the sensitivities were 95.60% and 96.47%, respectively, and the specificities were 96.25% and 95.35%, respectively. Low-field-intensity MRI is an accurate and cost-effective method for diagnosing meniscus tears.

show abstract

Section: Discussionmentioning

confidence: 99%

Accuracy of low-field MRI on meniscal tears

2014

View full text Add to dashboard Cite

show abstract

“…Intermediate-weighted MRI with fat suppression (IW-FS) is a frequently used sequence in imaging of the knee joint (14)(15)(16)(17). It combines the contrast advantage of proton-density weighted imaging with that of T2W images by using an echo time (TE) of 33-60 ms (18).…”

Section: Introductionmentioning

confidence: 99%

Intermediate-weighted MRI with fat suppression (IW-FS): diagnostic performance for bone marrow edema and erosion detection in axial spondyloarthritis

Chen

et al. 2023

Acta Radiol

View full text Add to dashboard Cite

Background Bone marrow edema (BME) and erosion of the sacroiliac joint are both key lesions for diagnosing axial spondyloarthritis (axSpA) on magnetic resonance imaging (MRI). Purpose To qualitatively and quantitatively compare intermediate-weighted MRI with fat suppression (IW-FS) with T2-weighted short tau inversion recovery (T2-STIR) in assessment of sacroiliac BME and erosion in axSpA. Material and Methods Patients aged 18–60 years with axSpA were prospectively enrolled. All patients underwent a 3.0-T MRI examination of the sacroiliac joints. Para-coronal IW-FS, T2-STIR, and T1-weighted (T1W) images were acquired. BME and erosion were scored by two readers in consensus on IW-FS and STIR using a modified Spondyloarthritis Research Consortium of Canada (SPARCC) scoring system. Consensus scores on T1WI were used as the reference for erosion. Signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were measured for BME. Results In total, 49 patients (mean age=33.4 ± 7.6 years) were included. More patients were scored as having BME on T2-STIR (36 vs. 29, P = 0.016). SPARCC-BME score on IW-FS was lower than that acquired on T2-STIR (mean, 11.5 vs. 14.7, P = 0.002). SNR and CNR of BME were both lower on IW-FS than on T2-STIR (mean SNR, 118 vs. 218, P < 0.001; mean CNR, 44 vs. 137, P < 0.001). The sensitivity of erosion detection was higher on IW-FS (83%) than on T2-STIR (54%, P = 0.006). Conclusion IW-FS is not sufficient for BME detection using T2-STIR as the reference standard in patients with axSpA. IW-FS has a much higher sensitivity than T2-STIR for erosion detection in the sacroiliac joint.

show abstract

High-signal bladder urine at T₁-weighted MR imaging performed 1–7 days after a prior gadolinium-enhanced MRI: prevalence and correlation with renal function

et al. 2019

View full text Add to dashboard Cite

Objective: To determine the prevalence of high-signal bladder urine at T1 weighted MRI performed 1–7 days after injection of gadolinium-based contrast material and to assess for correlation with altered renal function. Methods: The study group consisted of 267 patients who underwent MRI that included the bladder 1–7 days after a prior gadolinium-enhanced MRI. A control group consisted of 200 patients who underwent pelvic MRI and had not received gadolinium-based contrast material within the prior month. One reader recorded the relative T1 weighted signal intensity of bladder urine and calculated the estimated glomerular filtration rate (eGFR) for each patient. A positive scan was defined as one with bladder urine T1 weighted signal higher than that of muscle. Results: 25 (9%) of 267 study group scans were positive; this included 68% ( n = 19) of scans obtained 12–24 h after gadolinium-based contrast material administration, 21% ( n = 3) after 25–36 h, 7% ( n = 2) after 37–48 h, and 3% ( n = 1) after 49–72 h. No positive scan occurred after 72 h or in the control group. Mean eGFR in positive scans obtained more than 36 h after gadolinium-based contrast material administration was significantly lower than in negative scans in the same timeframe (37 vs 76 ml/min, respectively; p = 0.01). Conclusion: High T1 weighted signal in bladder urine occasionally is present on MRI performed up to 3 days after gadolinium-based contrast material administration, presumably reflecting residual excreted gadolinium-based contrast material. When visible more than 36 hours after gadolinium-based contrast material administration, such increased signal is associated with low eGFR. Advances in knowledge: Increased signal is occasionally present in bladder urine at MRI performed up to 3 days after gadolinium-based contrast material administration. When higher signal is visible more than 36 hours after contrast administration, it is associated with decreased eGFR.

show abstract

MR imaging of meniscal tears: comparison of intermediate-weighted FRFSE imaging with intermediate-weighted FSE imaging

Abstract: IW-FRFSE imaging can be used as an alternative to the IW-FSE imaging to evaluate meniscal tears.

Cited by 3 publications

References 12 publications

Accuracy of low-field MRI on meniscal tears

Accuracy of low-field MRI on meniscal tears

Intermediate-weighted MRI with fat suppression (IW-FS): diagnostic performance for bone marrow edema and erosion detection in axial spondyloarthritis

High-signal bladder urine at T₁-weighted MR imaging performed 1–7 days after a prior gadolinium-enhanced MRI: prevalence and correlation with renal function

Contact Info

Product

Resources

About

MR imaging of meniscal tears: comparison of intermediate-weighted FRFSE imaging with intermediate-weighted FSE imaging

Abstract: IW-FRFSE imaging can be used as an alternative to the IW-FSE imaging to evaluate meniscal tears.

Cited by 3 publications

References 12 publications

Accuracy of low-field MRI on meniscal tears

Accuracy of low-field MRI on meniscal tears

Intermediate-weighted MRI with fat suppression (IW-FS): diagnostic performance for bone marrow edema and erosion detection in axial spondyloarthritis

High-signal bladder urine at T1-weighted MR imaging performed 1–7 days after a prior gadolinium-enhanced MRI: prevalence and correlation with renal function

Contact Info

Product

Resources

About

High-signal bladder urine at T₁-weighted MR imaging performed 1–7 days after a prior gadolinium-enhanced MRI: prevalence and correlation with renal function