Hybrid Three Dimensional (1D‐Hadamard, 2D‐Chemical Shift Imaging) Phosphorus Localized Spectroscopy of Phantom and Human Brain

Hybrid Three Dimensional (1D‐Hadamard, 2D‐Chemical Shift Imaging) Phosphorus Localized Spectroscopy of Phantom and Human Brain
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体模和人脑的混合三维(1D-Hadamard、2D-化学位移成像)磷局部光谱

DOI:
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发表时间:
1995
影响因子:
3.3
通讯作者:
T. Brown
T. Brown
中科院分区:
医学3区
文献类型:
--
作者:
O. Gonen;Jiani Hu;R. Stoyanova;J. Leigh;G. Goelman;T. Brown

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两种局部光谱技术的混合,化学位移成像(CSI)和阿达玛光谱成像(HSI),用于获得16 × 16 × 4(3 × 3 × 3 cm3体素)的人脑质子去耦磷(31 P)光谱阵列。对于相同的空间分辨率,该器官的扁圆形状需要较少的轴向比冠状或矢状切片。这些不同的空间要求非常适合轴向方向上的1D、4阶横向HSI,以及其他两个方向上的2D 16 x 16 CSI。如果体素大小不受信噪比限制,则简化的定位矩阵(仅在大脑上为16 x 16 x 4,而在整个头部上为等分辨率的立方16 x 16 x 16矩阵)可能会按比例缩短数据采集。此外,使用Hadamard编码可以改善体素间的光谱隔离。
A hybrid of two localized spectroscopy techniques, chemical shift imaging (CSI) and Hadamard spectroscopic imaging (HSI), is used to obtain an array of 16 x 16 x 4 (3 x3 x 3 cm3 voxels) proton‐decoupled phosphorus (31P) spectra of human brain. For equal spatial resolution, this organ's oblate shape requires fewer axial than coronal or sagittal slices. These different spatial requirements are well suited to 1D, 4th order, transverse HSI in the axial direction, combined with 2D 16 x 16 CSI in the other two orientations. The reduced localization matrix (16 x 16 x 4 over just the brain versus a cubic‐16 x 16 x 16 matrix of equal resolution, over the entire head) may proportionally shorten data acquisition if the voxel size is not signal‐to‐noise limited. In addition, the use of Hadamard encoding can improve the intervoxel spectral isolation.
运动期间单个人体肌肉局部光谱中的 pH 异质性。
DOI: 10.1152/ajpcell.1993.265.5.c1332
发表时间: 1993
期刊: The American journal of physiology
影响因子: --
作者:
Vandenborne,K;Walter,G;Leigh,JS;Goelman,G
通讯作者: Goelman,G
DOI: 10.1148/radiology.185.2.1410369
发表时间: 1992-11-01
期刊: RADIOLOGY
影响因子: 19.7
作者:
LEVINE, SR;HELPERN, JA;ORDIDGE, RJ
通讯作者: ORDIDGE, RJ