Assessing the Imaging Capabilities of Radial Mechanical and Electronic Echo-endoscopes Using the Resolution Integral

Inglis, Scott; Janeczko, Adam; Ellis, William G.; Plevris, John; Pye, S. D.

doi:10.1016/j.ultrasmedbio.2014.02.009

Cited by 10 publications

(10 citation statements)

References 19 publications

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“…The resolution integral has been shown to provide measurements that allows comparison between the performance of different systems when using different types of transducers (Filoux et al, 2012). Recently, Inglis et al, (2014) showed that the resolution integral can assess the imaging capabilities of radial mechanical and electronic echo-endoscopes using the Edinburgh Pipe Phantom.…”

Section: The Edinburgh Pipe Phantommentioning

confidence: 99%

The acoustical properties of IEC agar-based tissue mimicking material over the frequency range 4.5MHz to 50MHz - a longitudinal study

Rabell-Montiel

Pye

Anderson

et al. 2016

2016 IEEE International Ultrasonics Symposium (IUS)

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Commercially available ultrasound quality assurance test phantoms rely on the long-term acoustic stability of the tissue-mimicking-material (TMM). Measurement of the acoustic properties of the TMM can be technically challenging, and it is important to ensure its stability. The standard technique is to film-wrap samples of TMM and to measure the acoustic properties in a water bath. In this study, a modified technique was proposed whereby the samples of TMM are measured in a preserving fluid that is intended to maintain their characteristics. The acoustic properties were evaluated using a broadband pulse-echo substitution technique over the frequency range 4.5-50 MHz at 0, 6 and 12 months using both techniques. For both techniques, the measured mean values for the speed of sound and attenuation were very similar and within the International Electrotechnical Commission-recommended value. However, the results obtained using the proposed modified technique exhibited greater stability over the 1-y period compared with the results acquired using the standard technique.

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Section: The Edinburgh Pipe Phantommentioning

confidence: 99%

The acoustical properties of IEC agar-based tissue mimicking material over the frequency range 4.5MHz to 50MHz - a longitudinal study

Rabell-Montiel

Pye

Anderson

et al. 2016

2016 IEEE International Ultrasonics Symposium (IUS)

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“…This was the first description of a fundamental physical approach to combining measurements of ultrasound resolution made at different depths in the image. Subsequently, visual and computational approaches to the calculation of the resolution integral were compared [10], and the resolution integral was used successfully to assess the imaging performance of endoscopes and intravascular catheters, respectively [11,12]. In addition, the resolution integral has been used to characterize high-frequency preclinical ultrasound scanners utilizing single-element, array and annular-array transducers [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

The Imaging Performance of Diagnostic Ultrasound Scanners Using the Edinburgh Pipe Phantom to Measure the Resolution Integral – 15 Years of Experience

et al. 2020

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The grayscale imaging performance of a total of 368 different scanner/transducer combinations from 39 scanner manufacturers measured over a period of 15 years is presented. Performance was measured using the resolution integral, a single figure-of-merit to quantify ultrasound imaging performance. The resolution integral was measured using the Edinburgh Pipe Phantom. Transducers included single element, linear, phased, curvilinear and multi-row arrays. Our results demonstrate that the resolution integral clearly differentiates between transducers with varying levels of performance. Two further parameters were also derived from the resolution integral: characteristic resolution and depth of field. We demonstrate that these two parameters can successfully characterize individual transducer performance and differentiate between transducers designed for different clinical and preclinical applications. In conclusion, the resolution integral is an effective metric to quantify and monitor grayscale imaging performance in clinical practice.

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“…In Figure 7, results for the single element mechanical IVUS transducers are displayed alongside results from previous studies that used the EPP method to characterise single element mechanical transducers used in preclinical work (Moran et al 2011b) and endoscopic ultrasound (Inglis et al 2014). Given the physical constraints of placing transducers within the body of a catheter it is not surprising to find the magnitude of the resolution integral of the IVUS catheters (range 15-19) to be slightly less but comparable to values for single element preclinical probes (range 19-25).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Intravascular Ultrasound Catheter-Based Transducers Using the Resolution Integral

McLeod

Moran

McBride

et al. 2018

Ultrasound in Medicine & Biology

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Intravascular ultrasound (IVUS) catheters are a specialist imaging modality used in the assessment of cardiovascular disease. The ultrasound transducer may either be of single-element mechanical or phased-array design. Because of their design and operating frequencies (10-45 MHz), evaluation of the imaging performance is not possible with commercially available ultrasound test objects. An existing test object, the Edinburgh Pipe Phantom, was modified to allow measurement of resolution integral (R), depth of field (Lr) and characteristic resolution (Dr) of IVUS catheters. In total, seven IVUS catheters, from two manufacturers and of both single-element mechanical and phased-array design, were tested to provide a measure of performance over different frequencies and technologies. Measurements of R for the tested IVUS catheters ranged from 11.9 to 18.8. The modified Edinburgh Pipe Phantom therefore allows catheter-based ultrasound probes to be evaluated scientifically and their performance to be seen in relation to other similar ultrasound technologies such as pre-clinical ultrasound and endoscopic ultrasound.

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Assessing the Imaging Capabilities of Radial Mechanical and Electronic Echo-endoscopes Using the Resolution Integral

Cited by 10 publications

References 19 publications

The acoustical properties of IEC agar-based tissue mimicking material over the frequency range 4.5MHz to 50MHz - a longitudinal study

The acoustical properties of IEC agar-based tissue mimicking material over the frequency range 4.5MHz to 50MHz - a longitudinal study

The Imaging Performance of Diagnostic Ultrasound Scanners Using the Edinburgh Pipe Phantom to Measure the Resolution Integral – 15 Years of Experience

Evaluation of Intravascular Ultrasound Catheter-Based Transducers Using the Resolution Integral

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