Abstract
Our aim was to evaluate the diagnostic reliability of turbo spin-echo (TSE) sequences compared to a conventional dual-echo spin-echo (SE) sequence in routine brain MRI at 1.0 T. The following demands were made on TSE sequences: acquisition time-reduction of at least 50% and true proton density (PD) contrast (lowsignal cerebrospinal fluid). A conventional spin-echo and two single-echo TSE sequences were used in 150 patients, a dual-echo TSE sequence in addition in 50 patients. Demonstration of most anatomical structures and disorders was equivalent with TSE and SE sequences. Advantages of TSE were reduced flow artefacts on T2-weighted images, better lesion contrast on PD-weighted TSE images (especially in the dual-echosequence) and acquisition time reduction to about 5 min (single-echo TSE) and 3∶35 min (dual-echo TSE). Disadvantages of TSE were: reduced contrast of tron-containing substances such as heamosiderin and of areas of calcification. By virtue of the shorter acquisition time and diagnostic reliability dual-echo TSE proved the best sequence. If it is used with only one acquisition-whereby image quality but not diagnostic reliability is slightly decreased — acquisition time can be further reduced to 1∶48 min. Application of a susceptibility-sensitive gradient-echo sequence, such as FLASH, compensates for the disadvantages mentioned above.
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References
Hennig J, Nauerth A, Friedburg H (1986) RARE imaging: a fast imaging method for clinical MR. Magn Res Med 3: 823–833
Jones KM, Mulkern RV, Schwartz RB, Oshio K, Barnes PD, Jolesz FA (1992) Fast spin-echo MR imaging of the brain and spine: current concepts. AJR 158: 1313–1320
Jones KM, Mulkern RV, Mantello MT, Melki PS, Ahn SS, Barnes PD, Jolesz FA (1992) Brain hemorrhage: evaluation with fast spin-echo and conventional dual spin-echo images. Radiology 182: 53–58
Norbash AM, Glover GH, Enzmann DR (1992) Intracerebral lesion contrast with spin-echo and fast spin-echo pulse sequences. Radiology 185:661–665
Tice HM, Jones KM, Mulkern RV, Schwartz RB, Kalina P, Ahn SS, Barnes P, Jolesz F (1993) Fast spin-echo imaging of intracranial neoplasms. J Comput Assist Tomogr 17: 425–431
Ahn SS, Mantello MT, Jones KM, Mulkern RV, Melki PS, Higuchi N, Barnes PD (1992) Rapid MR imaging of the pediatric brain using the fast spin-echo technique. AJNR 13: 1169–1177
Tien RD, Felsberg GJ, MacFall J (1992) Practical choices of fast spin-echo pulse sequence parameter: clinically useful proton density and T2-weighted contrasts. Neuroradiology 35: 38–41
Constable RT, Gore MC (1992) The loss of small objects in variable TE imaging: implications for FSE, RARE, and EPI. Magn Reson Med 28: 9–24
Fellner F, Prüll C, Helmberger T, Schmitt R, Hausmann R, Obletter N, Böhm-Jurkovic H (1993) Fast spin-echo sequences with optimized proton density-and T2 contrast: a comparative study with conventional SE imaging in routine brain examinations. 12th Annual Scientific Meeting, Soc Magn Reson Med Book of Abstracts, p 1432
Melki PS, Mulkern RV (1992) Magnetization transfer effects in multislice RARE sequences. Magn Reson Med 24: 189–195
Fellner F, Schmitt R, Prüll C, Helmberger T, Hausmann R, Obletter N (1993) Fast spin-echo sequences compared to conventional spin-echo technique in routine brain imaging at 1.0 T. Evaluation of 100 examinations. 10th Annual Scientific Meeting, Europ Soc Magn Reson Med Biol, Book of Abstracts, p 15
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Fellner, F., Schmitt, R., Trenkler, J. et al. True proton density and T2-weighted turbo spin-echo sequences for routine MRI of the brain. Neuroradiology 36, 591–597 (1994). https://doi.org/10.1007/BF00600415
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DOI: https://doi.org/10.1007/BF00600415