PMID: 18187894Jan 12, 2008Paper

Evaluation of imaging parameters for T1 dynamic contrast enhanced MRI with fast spin-echo

Nihon Hoshasen Gijutsu Gakkai zasshi
Yuuki KanazawaOsamu Sato

Abstract

For the purpose of continual measurement of the T1 value using the FSE (fast spin-echo) sequence and evaluation of the hemodynamics, we assessed T1 values when the imaging parameters were changed. Moreover, with the imaging parameters derived from this study, dynamic contrast-enhanced MR imaging (MRI) was examined in prostatic disease. First, the T1 value before contrast agent injection was measured with imaging parameters that had different TR and fixed TE. Next, dynamic contrast-enhanced imaging data were acquired for the imaging parameters using TE and TR in the same way as before contrast agent injection, and the T1 value of the tissue at contrast enhancement was measured. In the phantom studies, the TSE imaging parameters with short TE, long TR, and few ETL were connected with the mixed sequence. In dynamic study of the prostate, the difference between normal prostate and prostate cancer became clearer with the time-relaxation rate curve than the time-signal curve. This method using TSE is able to evaluate in greater detail information on hemodynamics and to perform dynamic study with the spin-echo sequence in extensive tissues.

References

Dec 1, 1987·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·J J In den Kleef, J J Cuppen
Nov 7, 2000·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·G J Stanisz, R M Henkelman
Mar 6, 2004·Nihon Hoshasen Gijutsu Gakkai zasshi·Yoshiyuki IshimoriAkinobu Kita
Feb 1, 2005·Nihon Hoshasen Gijutsu Gakkai zasshi·Tamotsu SuzukiKiyoko Sakurai

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Citations

Jan 20, 2009·Nihon Hoshasen Gijutsu Gakkai zasshi·Koji UchidaHajime Kitagaki
Jul 16, 2010·Nihon Hoshasen Gijutsu Gakkai zasshi·Norio HayashiOsamu Matsui
May 6, 2011·European Journal of Radiology·Yuki KanazawaOsamu Sato
Jun 11, 2009·Topics in Magnetic Resonance Imaging : TMRI·David Bonekamp, Katarzyna J Macura

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