Quick test of ultrasonic transducer arrays radiating in air using B-mode-images
-
Eike Rosenfeld
,
Andreas Kopp
Abstract
This paper describes a statistical procedure working on ultrasound B-mode images that were recorded with the transducer array radiating in air. From the digital image data, a gray value profile was generated using a computer program. A statistical procedure was developed to examine if there are significant deviations from the mean. They occur, for example, when single piezoelements are severely damaged or completely out of function. The entire technique was tested using an ultrasonic imaging system (SonixTouch, Ultrasonix Medical Corporation, Richmond, Canada) in which individual elements or groups of elements can be turned off via firmware. A failure of as large as two out of 128 elements was detectable.
The study was funded as part of a research project by the German Society for Ultrasound in Medicine (DEGUM).
References
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©2014 by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Masthead
- Masthead
- Reviews
- Biomechanics and load resistance of small-diameter and mini dental implants: a review of literature
- Artificial intelligence techniques used in respiratory sound analysis – a systematic review
- Research articles
- Optical cochlear implant: evaluation of insertion forces of optical fibres in a cochlear model and of traumata in human temporal bones
- Non-invasive ECG-triggered 2D TOF MR angiography of the pelvic and leg arteries in an open 1.0-tesla high-field MRI system in comparison to conventional DSA
- Initial clinical experience with a quadrupole butterfly coil for spinal injection interventions in an open MRI system at 1.0 tesla
- Quick test of ultrasonic transducer arrays radiating in air using B-mode-images
- Length measurement of the eye using a swept-source interferometer
- The suitability of EIT to estimate EELV in a clinical trial compared to oxygen wash-in/wash-out technique
- Designs and performance of microprocessor-controlled knee joints
- Short communication
- Nucleolus detection in the Fuhrman grading system for application in CCRC
