pulse sequence

简明释义

脉冲串

英英释义

例句

1.The choice of pulse sequence is crucial for obtaining accurate diagnostic information.

选择脉冲序列对于获取准确的诊断信息至关重要。

2.Different pulse sequences can highlight various tissue types in an MRI scan.

不同的脉冲序列可以在MRI扫描中突出显示各种组织类型。

3.During the training, we learned how to implement different pulse sequences in our protocols.

在培训期间，我们学习了如何在我们的方案中实施不同的脉冲序列。

4.In research, scientists often modify the pulse sequence to study specific molecular interactions.

在研究中，科学家们常常修改脉冲序列以研究特定的分子相互作用。

5.The MRI technician adjusted the pulse sequence to enhance the image quality.

MRI技术员调整了脉冲序列以提高图像质量。

作文

In the field of medical imaging, particularly in magnetic resonance imaging (MRI), the term pulse sequence refers to a specific series of radiofrequency pulses and gradients that are applied to obtain images of the body's internal structures. Understanding pulse sequence is crucial for both radiologists and technologists as it directly affects the quality and type of images produced. Each pulse sequence is designed to highlight different tissue characteristics, making it possible to diagnose various medical conditions effectively.The concept of pulse sequence can be likened to a musical score, where each note and rest contributes to the overall composition. In MRI, the timing, duration, and strength of each pulse must be meticulously calculated to achieve the desired contrast and resolution in the resulting images. For instance, a T1-weighted pulse sequence emphasizes fat and provides clear anatomical detail, while a T2-weighted pulse sequence highlights fluid-filled structures, such as cysts or edema.Moreover, advanced imaging techniques have introduced more complex pulse sequences like echo planar imaging (EPI) and diffusion tensor imaging (DTI). These sequences allow for rapid image acquisition and provide insights into brain connectivity and other dynamic processes within the body. The versatility of pulse sequence design enables clinicians to tailor imaging protocols to individual patient needs, optimizing diagnostic accuracy.As technology progresses, the development of new pulse sequences continues to enhance the capabilities of MRI. Researchers are exploring novel methods to reduce scan times, improve image quality, and even minimize patient discomfort during the imaging process. For instance, innovations such as compressed sensing and machine learning algorithms are being integrated into pulse sequence design, allowing for faster imaging without compromising on resolution.In conclusion, the pulse sequence is a fundamental aspect of MRI that plays a pivotal role in the field of medical diagnostics. Its intricate design and application are essential for producing high-quality images that aid in the detection and treatment of various health conditions. As we continue to advance our understanding of imaging technologies, the importance of mastering pulse sequence will only grow, paving the way for more effective and efficient healthcare solutions.

在医学成像领域，特别是在磁共振成像（MRI）中，术语脉冲序列指的是一系列特定的射频脉冲和梯度，这些脉冲和梯度被应用于获取身体内部结构的图像。理解脉冲序列对放射科医生和技师至关重要，因为它直接影响所产生图像的质量和类型。每个脉冲序列旨在突出不同的组织特征，使得能够有效地诊断各种医疗条件。脉冲序列的概念可以比作音乐乐谱，其中每个音符和休止符都为整体作品做出贡献。在MRI中，每个脉冲的时机、持续时间和强度必须经过精确计算，以实现所需的对比度和分辨率。例如，T1加权脉冲序列强调脂肪并提供清晰的解剖细节，而T2加权脉冲序列则突出液体填充的结构，如囊肿或水肿。此外，先进的成像技术引入了更复杂的脉冲序列，如回声平面成像（EPI）和扩散张量成像（DTI）。这些序列允许快速图像采集，并提供对大脑连接性和体内其他动态过程的洞察。脉冲序列设计的多样性使临床医生能够根据个体患者的需求量身定制成像方案，从而优化诊断准确性。随着技术的进步，新脉冲序列的开发不断增强MRI的能力。研究人员正在探索新方法，以减少扫描时间、提高图像质量，甚至在成像过程中最小化患者的不适感。例如，压缩感知和机器学习算法等创新正被整合到脉冲序列设计中，使得在不妥协分辨率的情况下实现更快的成像。总之，脉冲序列是MRI的一个基本方面，在医学诊断领域发挥着关键作用。其复杂的设计和应用对于生成高质量图像至关重要，这些图像有助于检测和治疗各种健康状况。随着我们对成像技术理解的不断深入，掌握脉冲序列的重要性只会增加，为更有效和高效的医疗解决方案铺平道路。