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Optimization of Gd-DTPA-enhanced balanced turbo field echo sequence in abdominal imaging: a basic study
Katsuhiro Nasu1, Yoshifumi Kuroki, Seiko Kuroki
1Department of Radiology, National Cancer Center Hospital East, Chiba, Japan. kanasu@east.ncc.go.jp
Summary
Optimizing balanced turbo field echo (bTFE) abdominal imaging requires careful consideration of k-space ordering and flow dynamics. Centric view ordering, fat suppression, and Gd-DTPA contrast enhancement are recommended for improved image quality.
Area of Science:
- Medical Imaging
- Radiology
- Magnetic Resonance Imaging (MRI)
Background:
- Balanced turbo field echo (bTFE) sequences are utilized in abdominal imaging.
- Optimizing imaging parameters is crucial for diagnostic accuracy.
Purpose of the Study:
- To determine optimal imaging conditions for the bTFE sequence in abdominal imaging.
- To investigate correlations between signal intensity, k-space ordering, flow velocity, and Gd-DTPA concentration.
Main Methods:
- Phantom experiments and volunteer scanning using the bTFE sequence.
- Evaluation of signal intensity, k-space ordering, and Gd-DTPA concentration.
- Assessment of flow velocity and Gd-DTPA concentration effects on signal intensity.
Main Results:
- Image contrast is significantly influenced by k-space ordering.
- Gd-DTPA showed minimal enhancement in stable water and blood samples.
- Signal intensity in moving water decreased with increasing fluid speed in centric-bTFE images.
- Gd-DTPA reduced signal loss in moving fluids, independent of concentration.
Conclusions:
- Centric view ordering is essential for bTFE abdominal imaging.
- Fat suppression and Gd-DTPA contrast enhancement are recommended for optimal results.