Tags

Type your tag names separated by a space and hit enter

Comparison of T1-weighted fast spin-echo and T1-weighted fluid-attenuated inversion recovery images of the lumbar spine at 3.0 Tesla.
Acta Radiol. 2010 Apr; 51(3):290-5.AR

Abstract

BACKGROUND

T1-weighted fluid-attenuated inversion recovery (FLAIR) sequence has been reported to provide improved contrast between lesions and normal anatomical structures compared to T1-weighted fast spin-echo (FSE) imaging at 1.5T regarding imaging of the lumbar spine.

PURPOSE

To compare T1-weighted FSE and fast T1-weighted FLAIR imaging in normal anatomic structures and degenerative and metastatic lesions of the lumbar spine at 3.0T.

MATERIAL AND METHODS

Thirty-two consecutive patients (19 females, 13 males; mean age 44 years, range 30-67 years) with lesions of the lumbar spine were prospectively evaluated. Sagittal images of the lumbar spine were obtained using T1-weighted FSE and fast T1-weighted FLAIR sequences. Both qualitative and quantitative analyses measuring the signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and relative contrast (ReCon) between degenerative and metastatic lesions and normal anatomic structures were conducted, comparing these sequences.

RESULTS

On quantitative evaluation, SNRs of cerebrospinal fluid (CSF), nerve root, and fat around the root of fast T1-weighted FLAIR imaging were significantly lower than those of T1-weighted FSE images (P<0.001). CNRs of normal spinal cord/CSF and disc herniation/ CSF for fast T1-weighted FLAIR images were significantly higher than those for T1-weighted FSE images (P<0.001). ReCon of normal spinal cord/CSF, disc herniation/CSF, and vertebral lesions/CSF for fast T1-weighted FLAIR images were significantly higher than those for T1-weighted FSE images (P<0.001). On qualitative evaluation, it was found that CSF nulling and contrast at the spinal cord (cauda equina)/CSF interface for T1-weighted FLAIR images were significantly superior compared to those for T1-weighted FSE images (P<0.001), and the disc/spinal cord (cauda equina) interface was better for T1-weighted FLAIR images (P<0.05).

CONCLUSION

The T1-weighted FLAIR sequence may be considered as the preferred lumbar spine imaging sequence compared to T1-weighted FSE, as it has demonstrated superior CSF nulling, better conspicuousness of normal anatomic structures and degenerative and metastatic lesions, and improved image contrast.

Authors+Show Affiliations

Department of Radiology, University Hospital of Larissa, Medical School of Thessaly, Mezourlo, Greece.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Evaluation Study
Journal Article

Language

eng

PubMed ID

20170294

Citation

Lavdas, Eleftherios, et al. "Comparison of T1-weighted Fast Spin-echo and T1-weighted Fluid-attenuated Inversion Recovery Images of the Lumbar Spine at 3.0 Tesla." Acta Radiologica (Stockholm, Sweden : 1987), vol. 51, no. 3, 2010, pp. 290-5.
Lavdas E, Vlychou M, Arikidis N, et al. Comparison of T1-weighted fast spin-echo and T1-weighted fluid-attenuated inversion recovery images of the lumbar spine at 3.0 Tesla. Acta Radiol. 2010;51(3):290-5.
Lavdas, E., Vlychou, M., Arikidis, N., Kapsalaki, E., Roka, V., & Fezoulidis, I. V. (2010). Comparison of T1-weighted fast spin-echo and T1-weighted fluid-attenuated inversion recovery images of the lumbar spine at 3.0 Tesla. Acta Radiologica (Stockholm, Sweden : 1987), 51(3), 290-5. https://doi.org/10.3109/02841850903501650
Lavdas E, et al. Comparison of T1-weighted Fast Spin-echo and T1-weighted Fluid-attenuated Inversion Recovery Images of the Lumbar Spine at 3.0 Tesla. Acta Radiol. 2010;51(3):290-5. PubMed PMID: 20170294.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of T1-weighted fast spin-echo and T1-weighted fluid-attenuated inversion recovery images of the lumbar spine at 3.0 Tesla. AU - Lavdas,Eleftherios, AU - Vlychou,Marianna, AU - Arikidis,Nikos, AU - Kapsalaki,Eftychia, AU - Roka,Violetta, AU - Fezoulidis,Ioannis V, PY - 2010/2/23/entrez PY - 2010/2/23/pubmed PY - 2010/4/3/medline SP - 290 EP - 5 JF - Acta radiologica (Stockholm, Sweden : 1987) JO - Acta Radiol VL - 51 IS - 3 N2 - BACKGROUND: T1-weighted fluid-attenuated inversion recovery (FLAIR) sequence has been reported to provide improved contrast between lesions and normal anatomical structures compared to T1-weighted fast spin-echo (FSE) imaging at 1.5T regarding imaging of the lumbar spine. PURPOSE: To compare T1-weighted FSE and fast T1-weighted FLAIR imaging in normal anatomic structures and degenerative and metastatic lesions of the lumbar spine at 3.0T. MATERIAL AND METHODS: Thirty-two consecutive patients (19 females, 13 males; mean age 44 years, range 30-67 years) with lesions of the lumbar spine were prospectively evaluated. Sagittal images of the lumbar spine were obtained using T1-weighted FSE and fast T1-weighted FLAIR sequences. Both qualitative and quantitative analyses measuring the signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and relative contrast (ReCon) between degenerative and metastatic lesions and normal anatomic structures were conducted, comparing these sequences. RESULTS: On quantitative evaluation, SNRs of cerebrospinal fluid (CSF), nerve root, and fat around the root of fast T1-weighted FLAIR imaging were significantly lower than those of T1-weighted FSE images (P<0.001). CNRs of normal spinal cord/CSF and disc herniation/ CSF for fast T1-weighted FLAIR images were significantly higher than those for T1-weighted FSE images (P<0.001). ReCon of normal spinal cord/CSF, disc herniation/CSF, and vertebral lesions/CSF for fast T1-weighted FLAIR images were significantly higher than those for T1-weighted FSE images (P<0.001). On qualitative evaluation, it was found that CSF nulling and contrast at the spinal cord (cauda equina)/CSF interface for T1-weighted FLAIR images were significantly superior compared to those for T1-weighted FSE images (P<0.001), and the disc/spinal cord (cauda equina) interface was better for T1-weighted FLAIR images (P<0.05). CONCLUSION: The T1-weighted FLAIR sequence may be considered as the preferred lumbar spine imaging sequence compared to T1-weighted FSE, as it has demonstrated superior CSF nulling, better conspicuousness of normal anatomic structures and degenerative and metastatic lesions, and improved image contrast. SN - 1600-0455 UR - https://www.unboundmedicine.com/medline/citation/20170294/Comparison_of_T1_weighted_fast_spin_echo_and_T1_weighted_fluid_attenuated_inversion_recovery_images_of_the_lumbar_spine_at_3_0_Tesla_ L2 - https://journals.sagepub.com/doi/10.3109/02841850903501650?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -