Evaluation of apparent diffusion coefficient of two-dimensional BLADE turbo gradient- and spin-echo diffusion-weighted imaging with a breast phantom
Evaluation of apparent diffusion coefficient of two-dimensional BLADE turbo gradient- and spin-echo diffusion-weighted imaging with a breast phantom
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DOI：
10.1007/s12194-022-00694-y
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发表时间：
2023-01
影响因子：
1.6
通讯作者：
Akiko Ohki;Hajime Sagawa;M. Iima;M. Kataoka;Y. Fushimi;K. Zhou
中科院分区：
文献类型：
--
作者：
Akiko Ohki;Hajime Sagawa;M. Iima;M. Kataoka;Y. Fushimi;K. Zhou
本研究旨在使用乳腺扩散体模评价二维涡轮梯度和自旋回波与BLADE轨迹扩散加权成像（TGSE-BLADE-DWI）序列生成的表观扩散系数（ADC）值的可靠性。使用3.0 T磁共振成像扫描仪进行TGSE-BLADE-DWI和单次激发自旋回波回波平面回波成像（SS-EPI-DWI）。比较TGSE-BLADE-DWI和SS-EPI-DWI的ADC值一致率和信噪比（SNR）。当b值> 2000 s/mm 2和层厚为1 mm时，TGSE-BLADE-DWI提供的ADC值一致率高于SS-EPI-DWI。TGSE-BLADE-DWI显示的图像失真小于SS-EPI-DWI。TGSE-BLADE-DWI的SNR高于SS-EPI-DWI，除了在激发次数为7和层厚为1 mm时。总之，在乳腺体模中，TGSE-BLADE-DWI可以提供比SS-EPI-DWI更好的SNR、更小的失真和更可靠的ADC测量。
This study aimed to evaluate the reliability of apparent diffusion coefficient (ADC) values generated with two-dimensional turbo gradient- and spin-echo with BLADE trajectory diffusion-weighted imaging (TGSE-BLADE-DWI) sequence using a breast diffusion phantom. TGSE-BLADE-DWI and single-shot spin-echo echo-planar imaging (SS-EPI-DWI) were performed using a 3.0 T magnetic resonance imaging scanner. Concordance rates of ADC values and the signal-to-noise ratio (SNR) were compared between TGSE-BLADE-DWI and SS-EPI-DWI. TGSE-BLADE-DWI provided a higher concordance rate for ADC values than SS-EPI-DWI when b-values > 2000s/mm2and a slice thickness of 1 mm were used. TGSE-BLADE-DWI showed less image distortion than SS-EPI-DWI. The SNR of TGSE-BLADE-DWI was higher than that of SS-EPI-DWI, except at a number of excitations of 7 and a slice thickness of 1 mm. In conclusion, TGSE-BLADE-DWI can offer a better SNR, less distortion, and more reliable ADC measurements than SS-EPI-DWI in a breast phantom.