Quantitative assessment of systolic and diastolic left ventricular twist using Fourier Analysis of Stimulated echoes (FAST) and CSPAMM.
Quantitative assessment of systolic and diastolic left ventricular twist using Fourier Analysis of Stimulated echoes (FAST) and CSPAMM.
复制标题
使用受激回波傅立叶分析 (FAST) 和 CSPAMM 定量评估收缩期和舒张期左心室扭转。
DOI：
10.1002/jmri.23849
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Ennis,DanielB
中科院分区：
文献类型：
--
作者：
Reyhan,Meral;Ennis,DanielB
目的评价傅里叶受激回波分析(FAST)和CSPAMM技术定量评价左心室(LV)收缩和舒张期功能的价值，并与FAST+SPAMM技术进行比较。结果FAST+∼组和FAST+SPAMM组在平均峰值扭转(13.5±2.7°vs11.9±4.0°)、扭转(3.4±0.8°/cm vs2.9±1.0°/cm)、扭转率(76.8±22.2°/S vs.68.2±23.4°/S)、扭转速度(76.8±22.2°/S vs.68.2±23.4°/S)、扭转率(76.8±22.2°/S比68.2±23.4°/S)、扭动率(68.2±23.4°/扭转率(−102.7±24.6°/S比−106.6±32.4°/S)、归一化解扭率(−7.9±2.2/S比−9.9±4.4/S)、扭转峰时间(279±23ms比293±25ms)(P均<0.05)；0.01)。FAST+CSPAMM还提供了解旋时间(148±21ms)和快速解旋与峰值扭转的比率(0.8±0.3)的测量结果。对FAST+CSPAMM和FAST+SPAMM的扭转数据进行BLAND-ALTMAN分析，偏差为1.1°，95%可信区间为[−3.3°，5.2°]。结论FAST+CSPAMM是一种半自动方法，可快速、定量地评价左心室收缩和舒张期扭转。J·马根。雷森。《影像》2013；37：678-683。©2013 Wiley期刊，Inc.
PurposeTo evaluate Fourier Analysis of Stimulated echoes (FAST) and CSPAMM for the quantification of left ventricular (LV) systolic and diastolic function and compare it with the previously validated FAST+SPAMM technique.Materials and MethodsLV short‐axis tagged images were acquired with CSPAMM and SPAMM in healthy volunteers (n = 13). The FAST method was used to automatically estimate LV systolic and diastolic twist parameters from rotation of the stimulated echo and stimulated anti‐echo about the middle ofk‐space subsequent to ∼3 min of user interaction.ResultsThere was no significant difference between measures obtained for FAST+CSPAMM and FAST+SPAMM for mean peak twist (13.5 ± 2.7° versus 11.9 ± 4.0°), torsion (3.4 ± 0.8°/cm versus 2.9 ± 1.0°/cm), twisting rate (76.8 ± 22.2°/s versus 68.2 ± 23.4°/s), untwisting rate (−102.7 ± 24.6°/s versus −106.6 ± 32.4°/s), normalized untwisting rate (−7.9 ± 2.2/s versus −9.9 ± 4.4/s), and time of peak twist (279 ± 23 ms versus 293 ± 25 ms) (allP> 0.01). FAST+CSPAMM also provided measures of duration of untwisting (148 ± 21 ms) and the ratio of rapid untwist to peak twist (0.8 ± 0.3). Bland‐Altman analysis of FAST+CSPAMM and FAST+SPAMM twist data demonstrates excellent agreement with a bias of 1.1° and 95% confidence intervals of [−3.3°, 5.2°].ConclusionFAST+CSPAMM is a semi‐automated method that provides a quick and quantitative assessment of LV systolic and diastolic twist and torsion. J. Magn. Reson. Imaging 2013;37:678–683. © 2013 Wiley Periodicals, Inc.