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Contrast-enhanced FLAIR imaging in combination with pre- and postcontrast magnetization transfer T1-weighted imaging: usefulness in the evaluation of brain metastases.
J Magn Reson Imaging. 2007 Mar; 25(3):479-87.JM

Abstract

PURPOSE

To assess whether the use of postcontrast fluid-attenuated inversion recovery (FLAIR) imaging in combination with pre- and postcontrast magnetization transfer (MT) T1-weighted imaging (T1WI) can increase diagnostic confidence in the evaluation of brain metastases.

MATERIALS AND METHODS

Brain MR images from 41 patients with suspected brain metastases were reviewed. Two radiologists viewed pre- and postcontrast MT-T1W images for the presence of metastatic tumors and rated the possible enhanced lesions using a five-point confidence scale (session 1). The postcontrast FLAIR images were then viewed together with pre- and postcontrast MT-T1W images, and the presence of metastasis was rated again (session 2).

RESULTS

A total of 240 possible enhanced lesions were detected in session 1. Judging by follow-up MR examinations, 196 were considered to be nonmetastatic findings and 44 were determined to be metastasis. In session 2 the confidence rating for nonmetastasis increased significantly in the subset of nonmetastatic findings (P < 0.001), and the confidence rating for metastasis increased significantly in the subset of metastases (P < 0.05).

CONCLUSION

The addition of postcontrast FLAIR imaging to pre- and postcontrast MT-T1WI improves diagnostic confidence in evaluation of brain metastases.

Authors+Show Affiliations

Department of Radiology, Hokkaido University Graduate School of Medicine, Sapporo, Japan. sterae@radi.med.hokudai.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article

Language

eng

PubMed ID

17326092

Citation

Terae, Satoshi, et al. "Contrast-enhanced FLAIR Imaging in Combination With Pre- and Postcontrast Magnetization Transfer T1-weighted Imaging: Usefulness in the Evaluation of Brain Metastases." Journal of Magnetic Resonance Imaging : JMRI, vol. 25, no. 3, 2007, pp. 479-87.
Terae S, Yoshida D, Kudo K, et al. Contrast-enhanced FLAIR imaging in combination with pre- and postcontrast magnetization transfer T1-weighted imaging: usefulness in the evaluation of brain metastases. J Magn Reson Imaging. 2007;25(3):479-87.
Terae, S., Yoshida, D., Kudo, K., Tha, K. K., Fujino, M., & Miyasaka, K. (2007). Contrast-enhanced FLAIR imaging in combination with pre- and postcontrast magnetization transfer T1-weighted imaging: usefulness in the evaluation of brain metastases. Journal of Magnetic Resonance Imaging : JMRI, 25(3), 479-87.
Terae S, et al. Contrast-enhanced FLAIR Imaging in Combination With Pre- and Postcontrast Magnetization Transfer T1-weighted Imaging: Usefulness in the Evaluation of Brain Metastases. J Magn Reson Imaging. 2007;25(3):479-87. PubMed PMID: 17326092.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Contrast-enhanced FLAIR imaging in combination with pre- and postcontrast magnetization transfer T1-weighted imaging: usefulness in the evaluation of brain metastases. AU - Terae,Satoshi, AU - Yoshida,Daisuke, AU - Kudo,Kohsuke, AU - Tha,Khin Khin, AU - Fujino,Masaharu, AU - Miyasaka,Kazuo, PY - 2007/2/28/pubmed PY - 2007/4/20/medline PY - 2007/2/28/entrez SP - 479 EP - 87 JF - Journal of magnetic resonance imaging : JMRI JO - J Magn Reson Imaging VL - 25 IS - 3 N2 - PURPOSE: To assess whether the use of postcontrast fluid-attenuated inversion recovery (FLAIR) imaging in combination with pre- and postcontrast magnetization transfer (MT) T1-weighted imaging (T1WI) can increase diagnostic confidence in the evaluation of brain metastases. MATERIALS AND METHODS: Brain MR images from 41 patients with suspected brain metastases were reviewed. Two radiologists viewed pre- and postcontrast MT-T1W images for the presence of metastatic tumors and rated the possible enhanced lesions using a five-point confidence scale (session 1). The postcontrast FLAIR images were then viewed together with pre- and postcontrast MT-T1W images, and the presence of metastasis was rated again (session 2). RESULTS: A total of 240 possible enhanced lesions were detected in session 1. Judging by follow-up MR examinations, 196 were considered to be nonmetastatic findings and 44 were determined to be metastasis. In session 2 the confidence rating for nonmetastasis increased significantly in the subset of nonmetastatic findings (P < 0.001), and the confidence rating for metastasis increased significantly in the subset of metastases (P < 0.05). CONCLUSION: The addition of postcontrast FLAIR imaging to pre- and postcontrast MT-T1WI improves diagnostic confidence in evaluation of brain metastases. SN - 1053-1807 UR - https://www.unboundmedicine.com/medline/citation/17326092/Contrast_enhanced_FLAIR_imaging_in_combination_with_pre__and_postcontrast_magnetization_transfer_T1_weighted_imaging:_usefulness_in_the_evaluation_of_brain_metastases_ L2 - https://doi.org/10.1002/jmri.20847 DB - PRIME DP - Unbound Medicine ER -