The research on comparing the result of anal fistula diagnose with different mr pulse sequences 不同序列成像診斷肛瘺的研究
Clinical application of fluid attenuated inversion recovery pulse sequences in mri of the brain 快速液體衰減反轉(zhuǎn)恢復(fù)脈沖序列技術(shù)的顱腦應(yīng)用探討
In the send site, binary message sequence is modulated between pulse sequences, then took it into wireless channel 發(fā)送端將二進(jìn)制信息序列調(diào)制于脈沖序列的間隔中,然后送入無(wú)線信道。
Signal in mr images is high or low ( bright or dark ), depending on the pulse sequence used, and the type of tissue in the image 磁共振中的信號(hào)根據(jù)所用脈沖的順序以及所要成像組織的類型分為高信號(hào)或低信號(hào)(亮或者暗)。
Signal in mr images is high or low ( bright or dark ), depending on the pulse sequence used, and the type of tissue in the image region of interest 磁共振中的信號(hào)根據(jù)所用脈沖的順序以及所要成像組織的類型分為高信號(hào)或第信號(hào)(亮或者暗)。
Chemical-shift magnetic resonance ( mr ) imaging is gradually accepted as a useful technique to distinguish benign adrenal lesions from malignant counterparts based on in-phase and out-of-phase gradient-echo pulse sequences 摘要化學(xué)相差磁振造影中,順相及逆相脈沖序最之腫瘤訊號(hào)強(qiáng)度的變化,應(yīng)用在臨床上分辨腎上腺良性或惡性腺瘤是有用且逐漸被接受的圖象診斷工具。
A interception probability reduction theory by means of comparing the rppm with constant pri pulse sequence is also analysised in this paper, further more the strong properties of eccm of the rppm is discussed and analysised 此外,本文還介紹了隨機(jī)脈位調(diào)制信號(hào)比較于等重復(fù)周期(pri)脈沖信號(hào)來(lái)降低信號(hào)被截獲概率的原理,討論并分析了隨機(jī)脈位調(diào)制脈沖多普勒雷達(dá)較強(qiáng)的抗干擾能力。
But to this algorithm, it is important to select initial value and the amount of computation is large; ( 3 ) an algorithm is presented to estimate the prfs based on stochastic dynamic-linear models . ( 4 ) a new algorithm for selecting detecting threshold based on the wavelet theory is presented to the environment when pulse sequences distribute unevenly in the whole sampling time 該算法的不足是對(duì)初始狀態(tài)的選取非常重要且運(yùn)算量較大;(3)提出基于動(dòng)態(tài)線性模型利用prf進(jìn)行重頻分選的算法;(4)將小波理論應(yīng)用到重頻分選中,提出了一種新的檢測(cè)門(mén)限,適用于脈沖列分布不均勻的信號(hào)環(huán)境。