scholarly journals Probe Sector Matching for Freehand 3D Ultrasound Reconstruction

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3146
Author(s):  
Xin Chen ◽  
Houjin Chen ◽  
Yahui Peng ◽  
Dan Tao
Keyword(s):  
Ultrasound Image ◽  
Target Position ◽  
Target Surface ◽  
3D Ultrasound ◽  
Reconstruction Technique ◽  
Ultrasound Probe ◽  
Multiple Sensors ◽  
3D Hough Transform ◽  
3D Volume ◽  
Array Ultrasound

A 3D ultrasound image reconstruction technique, named probe sector matching (PSM), is proposed in this paper for a freehand linear array ultrasound probe equipped with multiple sensors, providing the position and attitude of the transducer and the pressure between the transducer and the target surface. The proposed PSM method includes three main steps. First, the imaging target and the working range of the probe are set to be the center and the radius of the imaging field of view, respectively. To reconstruct a 3D volume, the positions of all necessary probe sectors are pre-calculated inversely to form a sector database. Second, 2D cross-section probe sectors with the corresponding optical positioning, attitude and pressure information are collected when the ultrasound probe is moving around the imaging target. Last, an improved 3D Hough transform is used to match the plane of the current probe sector to the existing sector images in the sector database. After all pre-calculated probe sectors are acquired and matched into the 3D space defined by the sector database, a 3D ultrasound reconstruction is completed. The PSM is validated through two experiments: a virtual simulation using a numerical model and a lab experiment using a real physical model. The experimental results show that the PSM effectively reduces the errors caused by changes in the target position due to the uneven surface pressure or the inhomogeneity of the transmission media. We conclude that the PSM proposed in this study may help to design a lightweight, inexpensive and flexible ultrasound device with accurate 3D imaging capacity.

scholarly journals Versatile Low-Cost Volumetric 3D Ultrasound Imaging Using Gimbal-Assisted Distance Sensors and an Inertial Measurement Unit

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6613
Author(s):  
Taehyung Kim ◽  
Dong-Hyun Kang ◽  
Shinyong Shim ◽  
Maesoon Im ◽  
Bo Kyoung Seo ◽  
...  
Keyword(s):  
Inertial Measurement Unit ◽  
Low Cost ◽  
Ultrasound Image ◽  
3D Ultrasound ◽  
Measurement Unit ◽  
Ultrasound Images ◽  
Ultrasound Probe ◽  
Inertial Measurement ◽  
Position Data ◽  
2D Ultrasound

This study aims at creating low-cost, three-dimensional (3D), freehand ultrasound image reconstructions from commercial two-dimensional (2D) probes. The low-cost system that can be attached to a commercial 2D ultrasound probe consists of commercial ultrasonic distance sensors, a gimbal, and an inertial measurement unit (IMU). To calibrate irregular movements of the probe during scanning, relative position data were collected from the ultrasonic sensors that were attached to a gimbal. The directional information was provided from the IMU. All the data and 2D ultrasound images were combined using a personal computer to reconstruct 3D ultrasound image. The relative position error of the proposed system was less than 0.5%. The overall shape of the cystic mass in the breast phantom was similar to those from 2D and sections of 3D ultrasound images. Additionally, the pressure and deformations of lesions could be obtained and compensated by contacting the probe to the surface of the soft tissue using the acquired position data. The proposed method did not require any initial marks or receivers for the reconstruction of a 3D ultrasound image using a 2D ultrasound probe. Even though our system is less than $500, a valuable volumetric ultrasound image could be provided to the users.

Design of an Ultrasound Probe Holder to Minimize Motion Artifact During Sonography

2020 ◽  
Author(s):  
Smruti Mahapatra ◽  
Tarana Parvez Kaovasia ◽  
Sufia Ainechi ◽  
Ana Ainechi ◽  
Molly Acord ◽  
...  
Keyword(s):  
Image Quality ◽  
Ultrasound Image ◽  
Motion Artifact ◽  
Hand Movements ◽  
Operating Table ◽  
Imaging Procedures ◽  
Ultrasound Probe ◽  
3D Printed ◽  
Probe Holder ◽  
Minimize Motion Artifact

Abstract Standard diagnostic ultrasound imaging procedures heavily rely on a sonographer for image acquisition. Given the ultrasound probe is manually manipulated by the sonographer, there is a potential for noise artifacts like blurry acquired images caused by involuntary hand movements. Certain surgical procedures can also cause patients to exhibit involuntary “jumping” movements while on the operating table leading to further deterioration in ultrasound image quality. In this study, we attempt to mitigate these problems by fabricating a 3D-printed ultrasound probe holder. Due to the lightweight nature of the device, it can attach to surgical retractors without influencing the functionality of the retractor. Therefore, the 3D printed probe holder not only reduces relative motion between the probe and the patient, but also reduce the need for a sonographer during complex surgeries.

3D ultrasound image guidance system used in RF uterine adenoma and uterine bleeding ablation system

2006 ◽  
Author(s):  
Mingyue Ding ◽  
Xiaoan Luo ◽  
Chao Cai ◽  
Chengping Zhou ◽  
Aaron Fenster
Keyword(s):  
Image Guidance ◽  
Ultrasound Image ◽  
3D Ultrasound ◽  
Uterine Bleeding ◽  
Guidance System

Abstract 2055: A Fingertip-Mounted Ultrasound Probe for Open-Chest Echocardiographic Imaging During Heart Surgery: Pilot Studies with a New Scanning Method

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Ling Hui ◽  
Ronald W Schutz ◽  
Scott Corbett ◽  
Evan Dudik ◽  
Shelly Kinnune ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Left Atrium ◽  
Heart Surgery ◽  
Intraoperative Imaging ◽  
Imaging Study ◽  
Ultrasound Probe ◽  
Pilot Studies ◽  
Scanning Method ◽  
Open Chest ◽  
Array Ultrasound

Background: We report a newly developed fingertip-mounted ultrasound probe (SonicEye®), which has been applied to an open-chest intraoperative imaging study. This probe is small, flexible, and quickly detachable. Its intuitive positioning makes it easy to acquire images in standard as well as unique views including views from the diaphragmatic surface of the left ventricle and behind the left atrium with a “heads up” that can be easily viewed by the surgeon while looking at the heart and the probe. Methods: In an open-chest study of two 12–14 kg piglets, the finger-mounted (11 mm radius, 4 – 6 MHz) and a conventional phased array ultrasound probe (Siemens 7V3C, 4 – 6 MHz) were used for scanning on a Siemens Cypress system. Images were recorded and analyzed for quality of image offline. Results: The fingertip-mounted ultrasound probe had the same performance as the conventional ultrasound probe as regards to image quality and Doppler performance. Furthermore, the probe could provide unique views from behind the left atrium and/or under the diaphragmatic surface of the left ventricle that even TEE does not match. Conclusions: The fingertip-mounted probe was able to capture high quality images during our study. This probe is easy to wear and provides high resolution unique images which should be useful for intraoperative evaluation of cardiac repairs.

Imaging in Anesthesia: The Role of 4 MHz to 7 MHz Sector Array Ultrasound Probe in the Identification of the Sciatic Nerve at Different Anatomic Locations

2007 ◽  
Vol 32 (6) ◽  
pp. 537-538 ◽  
Author(s):  
T SARANTEAS ◽  
C CHANTZI ◽  
T PARASKEUOPOULOS ◽  
A ALEVIZOU ◽  
J ZOGOJIANNIS ◽  
...  
Keyword(s):  
Sciatic Nerve ◽  
Ultrasound Probe ◽  
Anatomic Locations ◽  
Array Ultrasound

A CMUT-based finger-mounted 3D ultrasound probe

2014 ◽  
Author(s):  
Albert I.H Chen ◽  
Lawrence L.P. Wong ◽  
John T.W. Yeow
Keyword(s):  
3D Ultrasound ◽  
Ultrasound Probe
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