视觉惯性测距能够实现3D超声波和光声学成像
Deeksha M Sankepalle1, Brian Anthony2, Srivalleesha Mallidi1,3
1Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA.
Biomedical optics express
|June 21, 2023
概括
这项研究介绍了一种可负担的手持式3D超声波和光声学 (USPA) 成像设备,使用视觉测距仪进行实时癌症监测. 该系统准确地捕获3D血管数据,提供了一个便携式和临床可行的替代方案.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 医疗技术 医疗技术 医学技术
- 在光学成像系统中,光学成像
背景情况:
- 3D超声波和光声学 (USPA) 成像对于实时监测恶性瘤中的血管和分子标志物至关重要.
- 目前的3D USPA系统通常是昂贵和繁的,依赖于专门的传感器阵列,机械臂或有限的线性阶段.
研究的目的:
- 开发和验证一种经济,便携和临床可翻译的手持设备,用于3DUSPA成像.
- 集成一个低成本的视觉测距系统,用于自由手的3DUSPA数据采集.
主要方法:
- 一个现成的Intel RealSense T265摄像头与同时定位和映射 (SLAM) 被连接到USPA传感器上来跟踪自由手的运动.
- 集成系统被用来获取3D图像,性能与线性阶段 (地面真相) 相比较.
- 评估了500微米步骤大小的检测精度和用户评估的手持扫描潜力.
主要成果:
- 该系统可靠地检测到500微米的步骤大小,准确率为90.46%.
- 来自运动补偿3DUSPA图像的体积计算与地面真相没有显著差异.
- 手持式扫描被各种用户评价,证明了它的潜力.
结论:
- 这项研究确定了使用可负担的,现成的视觉测距系统用于自由手的3DUSPA成像的可行性.
- 开发的手持设备为临床应用提供了便携式和经济有效的解决方案.
- 这项技术可以集成到现有的光声成像系统中,以提高诊断能力.
相关概念视频
01:17Ultrasonography
4.6K
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...
During an ultrasonography procedure, a handheld device called...
4.6K
01:25Ultrasound II: Endoscopic Ultrasound and FibroScan
147
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
147
01:24Imaging Studies II: Ultrasonography
31
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...
31
01:20Ultrasound I: Abdominal Ultrasonography
306
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...
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...
306