Department of Bioengineering, Perelman School of Medicine, University of Pennsylvania, United States.
Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104, United States.
Ultrasonics. 2020 Apr;103:106084. doi: 10.1016/j.ultras.2020.106084. Epub 2020 Feb 8.
Two-dimensional ultrasounds (2D US) have low reproducibility of given images in later sessions and often depend on the operator's experience.
Due to difficulties in reproducing images in 2D US separated in time, a device to track the position of the ultrasound probe was created. This device aims to measure the probe position angle in two axes for 2D US to provide accurate repositioning of the 2D US probe for repeatability of the desired imaging plane.
The device uses an inclinometer with an Arduino microprocessor to determine the angle of the ultrasound probe to subsequently establish the specific position coordinates of the probe. To test the effectiveness of this device, a 2D US probe was placed on a frontal burr hole of a neonatal swine to image the brain.
When fixing the point of contact, using the probe with the angle sensing device helped the operator reproduce images that were both visually and positionally similar. This attachment allows the probe to return to the same image with at least 95% similarity in between different sessions, based on evaluations using an image analysis Matlab program. The sensor can return images of the same location with landmarks within the tolerance of 1.400°.
This device could potentially improve 2D US image reproducibility such that accuracy of images between sessions is increased, thereby increasing the reproducibility of 2D US in diagnostic and interventional procedures.
二维超声（2D US）在后续检查中对给定图像的再现性较低，且往往依赖于操作人员的经验。
由于在时间上分离的二维超声图像难以再现，因此创建了一种用于跟踪超声探头位置的设备。该设备旨在测量二维 US 探头在两个轴上的位置角度，以便为重复所需成像平面提供准确的探头重新定位。
该设备使用带有 Arduino 微处理器的倾斜计来确定超声探头的角度，随后确定探头的特定位置坐标。为了测试该设备的有效性，将一个二维超声探头放置在新生儿猪的额骨骨孔上，以对大脑进行成像。
当固定接触点时，使用带有角度感应装置的探头有助于操作人员再现视觉和位置上相似的图像。这种附件允许探头以至少 95%的相似性在不同检查之间返回相同的图像，这是使用图像分析 Matlab 程序进行评估的结果。传感器可以返回具有容差为 1.400°的相同位置的图像。
该设备有可能提高二维超声图像的再现性，从而提高检查之间图像的准确性，从而提高诊断和介入程序中二维超声的再现性。
