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相关概念视频

Computed Tomography01:10

Computed Tomography

4.6K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

29
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
29
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

28
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
28
Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

287
Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
287

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相关实验视频

Updated: Jul 20, 2025

Author Spotlight: Integrated Photoacoustic, Ultrasound, and Angiographic Tomography (PAUSAT) for NonInvasive Whole-Brain Imaging of Ischemic Stroke
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Author Spotlight: Integrated Photoacoustic, Ultrasound, and Angiographic Tomography (PAUSAT) for NonInvasive Whole-Brain Imaging of Ischemic Stroke

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深度学习超声波计算机断层扫描在稀疏采样下

Xiaoyun Long, Junying Chen, Weiyong Liu

    IEEE transactions on ultrasonics, ferroelectrics, and frequency control
    |July 31, 2023
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    概括
    此摘要是机器生成的。

    一种新的深度学习方法SRSS-Net改善了乳腺瘤检测的超声波计算机断层扫描 (USCT). 这种方法提高了图像质量和计算速度,为实时癌症查提供了潜力.

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    相关实验视频

    Last Updated: Jul 20, 2025

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    科学领域:

    • 医疗成像医学成像
    • 生物医学工程 生物医学工程
    • 人工智能的人工智能

    背景情况:

    • 超声波计算机断层扫描 (USCT) 显示了乳腺瘤检测和表征的前景.
    • 定量声速 (SOS) 和声衰减成像是USCT的关键应用.
    • 高质量的USCT重建通常需要昂贵的,高传感器计数系统,或者由于数组稀疏而质量低下.

    研究的目的:

    • 在稀疏采样条件下为USCT开发高质量的定量SOS重建框架.
    • 与现有方法相比,提高图像质量和计算效率.
    • 通过USCT.使成本有效和更快的乳腺瘤检测.

    主要方法:

    • 提出了一个新的框架,将曲射线算法与卷积神经网络 (SRSS-Net) 结合起来.
    • SRSS-Net的设计是为了从稀疏采样的USCT数据有效地提高图像质量.
    • 该方法使用合成和真实乳腺组织数据集进行了评估,包括一个不均的幻影.

    主要成果:

    • 与最先进的方法相比,SRSS-Net在文物抑制,结构保存和定量准确性方面表现出卓越的表现.
    • 拟议的网络实现了显著更快的计算速度.
    • 微调策略被认为对现实世界的应用有益.

    结论:

    • 在稀疏样本USCT中,SRSS-Net为高质量,定量SOS重建提供了一个有希望的解决方案.
    • 由于其成像和计算性能,该方法具有实时乳腺癌检测的巨大潜力.
    • 为临床实施,建议进行进一步的验证和微调.