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- Titel:
Contrast enhanced IR-SSFP examination compared with T1-weighted turbo spin-echo imaging of cardiac tumors and tumorlike lesions.
- Dokumenttyp:
- journal article
- Autor(en):
- Bauner, KU; Sandner, T; Notohamiprodjo, M; Schmoeckel, M; Reiser, MF; Huber, AM
- Abstract:
- To show that the use of an early and delayed contrast enhanced multislice inversion recovery steady state free precession (SS-IR-SSFP) is a valuable substitute for conventional post-contrast fat saturated turbo spin-echo (TSE) T1-weighted images in the assessment of cardiac tumors.34 consecutive patients referred for MRI in order to assess cardiac tumors were examined. Shortly after administration of gadopenetate dimeglumine (Gd-DTPA) images were obtained using a SS-IR-SSFP sequence. The inversion time (TI) was set at 350ms to achieve a good demarcation of intracavitary tumor spread. Hereafter 9 slices of a T1w TSE sequence were obtained. Finally a SS-IR-SSFP sequence with an optimized TI to null normal myocardium was employed. Quantitative comparisons were performed by calculating contrast to noise ratios of tumor/myocardium (CNR(tumor/myo)) and CNR of tumor/left ventricular cavity (CNR(tumor/LVC)). Image quality was assessed regarding overall image quality, artifacts and tumor conspicuity.Neither calculation of CNR(tumor/LVC) when comparing the early IR-SSFP and T1w TSE, nor calculation of CNR(tumor/myo) when comparing the late IR-SSFP and T1w TSE sequence resulted in statistically significant differences. However, qualitative assessments revealed significant superior results for the early and the late IR-SSFP images compared to the T1-weighted TSE images (p<0.001).Image quality and tumor conspicuity were superior and image degradation by artifacts was less on IR-SSFP images compared to TSE images without loss of CNR. Thus the use of IR-SSFP sequences is an attractive alternative imaging method compared to post-contrast T1w TSE imaging in the assessment of cardiac tumors.
- Zeitschriftentitel:
- Eur J Radiol
- Jahr:
- 2011
- Band / Volume:
- 78
- Heft / Issue:
- 1
- Seitenangaben Beitrag:
- 93-8
- Sprache:
- eng
- PubMed:
- http://view.ncbi.nlm.nih.gov/pubmed/19900776
- Print-ISSN:
- 0720-048X
- TUM Einrichtung:
- Röntgendiagnostik
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