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- MRI examination was performed with a 1.0 tesla superconductive magnetic field, and processed with turbo spin echo sequence. MRI平掃和增強檢查在 1.;0T超導磁場(chǎng)中完成;采用快速自旋回波序列。
- Methods 111 cases were studied using FLAIR and conventional T2WI of fast spin echo(FSE) and DWI sequence on 0.35T permanent magnet MRI system. 方法應用0.;35T永磁MRI系統;對111例腦部MRI受檢者分別使用FLAIR與常規FSE T2WI及DWI序列進(jìn)行對比分析。
- Objective To discuss the value of fluid attenuated inversion recovery (FLAIR) and fast spin echo (FSE) in MRI of the brain. 目的探討腦脊液衰減翻轉恢復(FLAIR)與快速自旋回波(FSE)在顱腦的應用對比價(jià)值。
- Abstract： Objective To investigate the diagnostic value of conventional spin echo (SE) in combination with cine MRI in congenital heart disease. 摘 要： 目的 探討常規自旋回波（SE）結合電影MRI對先天性心臟大血管畸形的診斷價(jià)值。
- It can also simulate the speed about distance changing and adjust the pulse width of echo signal. 此外，本目標回波距離處理器還可以仿真距離變化速率，調節回波脈沖的寬度。
- Naganawa S,Koshikawa T,Fukatsu H,et al.Fast recovery 3D fast spin echo MR imaging of the inner ear at 3T[J].Am J Neuroradiol,2002,23:299. 孔祥泉;劉定西;徐海波;等.;國人內聽(tīng)道及內耳膜迷路的正常MR解剖研究[J]
- SPGA algorithm compensates the envelope and phase of the echo signal which has not be corrected range migration. SPGA算法利用估計得到的側擺對距離徙動(dòng)校正前的回波數據進(jìn)行包絡(luò )和相位補償。
- Describes a distance simulator of echo signal used in radio frequency simulation system. 描述了射頻仿真系統中使用的目標回波距離處理器。
- Because the truths of the echo signal simulation are directly influenced by the accuracy of the simulation algorithms. 模擬算法的優(yōu)劣直接影響著(zhù)模擬產(chǎn)生的回波信號的真實(shí)性。
- MRDTI sequence included spin echo sequence T1-weight image(SE T1WI),fast spine echo sequence T2-weighted image(FSE T2WI)and fourier acquired steady state sequence(FAST). MRDTI選用SE T1WI、FSE T2WI、FAST(fourier acquired steady state,FAST)序列。
- Radio frequency simulation system(RFSS) is mainly used to simulate echo signal of radio frequency target in laboratory. 射頻仿真系統(RFSS)主要是用在實(shí)驗室里模擬空中射頻目標信號。
- Methods We performed DWI,fluid attenuated inversion recovery,fast spin echo T 2 weighted MRI,3D TOF MRA in 52 patients with hyperacute,acute,subacute,chronic stroke. 方法 對 5 2例超急性期、急性期、亞急性期、慢性期的患者行 DWI、快速自旋回波 T2 WI、FL AIR及 3 D TOF法磁共振血管成像檢查。
- Pre polarizing and spin echo method are often used in NML tool, and the magnetic field used has been changed from primitive earth magnetic field to man made magnetic field. 核磁測井儀中多采用預極化方式或自旋回波法，所用的磁場(chǎng)已從最初的地磁場(chǎng)演變到現在所用的各種人工磁場(chǎng)，所用的測量方式要與采用的磁場(chǎng)設計相適應。
- Conclusion The proper sequence for function MRI of pulmonary parenchyma was single shot turbo spin echo(SSh/TSE)with centrically-reordered phase encoding scheme and... 結果選擇的序列是單激發(fā)快速自旋回波序列和單激發(fā)反轉快速自旋回波序列。
- A way to measuring the vector miss distance using echo signal from Multiple Frequency CW-Tracking Radar is described in this paper. 本文詳細介紹了利用多頻連續波測量雷達回波信號進(jìn)行脫靶量測量的方法。
- Miss distance parameters are estimated by matching pursuit algorithm to search the basis function which best matches the echo signal. 通過(guò)匹配追蹤算法尋找與回波信號最匹配的基函數來(lái)確定脫靶量參數。
- Adaptive MTI techniques used in radar signal processing,that is,moving clutter suppression to radar echo signal is discussed. 討論雷達信號處理中的自適應動(dòng)目標顯示技術(shù),即雷達回波信號中的運動(dòng)雜波抑制問(wèn)題。
- The imaging fundamental of SAR was expatiated and the raw echo signal model of complex three-dimensional ground object target was established. 闡述了復雜三維地物目標模型的建立方法,分析了回波信號的結構并且討論了成像仿真參數。
- Based on non-Gaussian AR-model, parametric bi-spectrum method is used to extrapolate radar echo signal; then the ISAR imaging has been done. 利用雙譜分析方法,用非高斯AR模型對雷達目標回波信號進(jìn)行參數化雙譜估計,并在此基礎上對數據進(jìn)行外推處理,然后對數據進(jìn)行ISAR成像。
- An ocean echo signal simulation system for verification and calibration of FMICW high frequency ground wave radar is presented in this paper. 該文給出一種調頻中斷連續波(FMICW)高頻地波海況監測雷達的仿真模擬檢驗系統。
