Comparison of mpeg-1 digital videotape with digitized svhs videotape for quantitative echocardiographic measurements

García, Mario J.; Thomas, James D.; Greenberg, Neil L.; Sandelski, Joanne; Herrera, Cesar; Mudd, C. H.; Wicks, Jeffrey D.; Spencer, Kirk; Neumann, Alex; Sankpal, Bonnie; Soble, Jeffrey S.

doi:10.1067/mje.2001.110270

Cited by 21 publications

(7 citation statements)

References 14 publications

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“…the encoding process could affect also the quantitative echocardiographic measurements. the accuracy of such measurements was previously investigated in MPeG1 encoded echocardiographic studies [32], resulting that these measurements were comparable with measurements in digitized sVHS videotape. the VQM tool, thanks the abovementioned embedded tools, useful to modeling a transmission process (intrinsically degrading) could also be of aid, to explore how the different coding process could affect images features (like as edge structures, contrast and chromatic aspects), prejudicing the accuracy of the semi-automatic echocardiographic measurements.…”

Section: Improvement Of the Activity Of The Designer Of The Applicati...mentioning

confidence: 73%

Routine tests for both planning and evaluating image quality in tele-echocardiography

Morelli¹,

Giordano²,

Giansanti³

2009

Ann. Ist. Super. Sanità

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Both in real-time and "store & forward" tele-echocardiography (T-E), a coding process has to be applied to the echocardiographic videoclips in order to limit the bandwidth needed and adapt it to the bandwidths furnished by network providers. The compression process degrades the videoclips, affecting thus the quality of the videoclips and potentially compromising the diagnostic accuracy of the T-E. In this work the authors investigated on the use of automatic tools for the video quality assessment by means of objective methods with particular care to the role of the system administrator. As the use of tests on video quality assessment (based on subjective methods) is hampered by the high number of needed resources (persons, laboratories and time). The use of valid objective methods is thus desirable. The study reviewed different tools with this specific aim. One of the more suitable tool was found to be represented by a software package designed by the Institute of Telecommunication Sciences and the National Telecommunication and Information Administration, the NTIA/ITS VQM tool. This tool gives back objective-quantitative data as outcomes, however embeds models emulating the subjective perception. This study reviewed and analyzed in depth the functionalities of the tool to improve the image quality in TE over the network. The tool was also found suitable for a more general process of T-E assessment, from a health technology assessment (HTA) perspective.

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Section: Improvement Of the Activity Of The Designer Of The Applicati...mentioning

confidence: 73%

Routine tests for both planning and evaluating image quality in tele-echocardiography

Morelli¹,

Giordano²,

Giansanti³

2009

Ann. Ist. Super. Sanità

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“…Other alternative approaches to digitize echocardiograms stored on analog tapes exist using alternative conversion hardware and electronic storage methods. 23, 24 We offer our experience at the Framingham Heart Study as another proof of concept that preservation of legacy data can be cost-effective, time efficient, consistent, and scalable, in organization of data in a research-ready durable storage format.…”

Section: Discussionmentioning

confidence: 99%

High-Throughput Digitization of Analog Human Echocardiography Data

Kwan

Salto

Demosthenes

et al. 2020

Preprint

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Echocardiographic imaging data has been acquired for adult participants of a longitudinal community-based epidemiological cohort study at serial examinations between 1987 and 1998. The original image acquisition approach was analog with storage of moving images on Video Home System (VHS) tapes. Accordingly, we designed and implemented a standardized methodology for digitizing, anonymizing, and organizing these analog data to enable contemporary image-based analyses. Herein, we describe the overall methodology and the operational workflow, quality control, Health Insurance Portability and Accountability Act compliance, and data formatting issues that we addressed. We present this method as an accessible pipeline for enabling digitization of historical imaging data, originally acquired from large cohort studies, in order to preserve and repurpose them for application of advanced and continually evolving image analytical techniques. Such pipelines are critical not only for data conservation but are also invaluable for prospective analyses of imaging phenotypes in relation to already-accrued longitudinal outcomes in community-based cohorts that have been under careful surveillance over up to several decades of follow up.

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“…The algorithm in (6) can be realized by the wavelet packet analysis filter banks, iterating both the high pass wavelet branch and the low pass scaling function branch of the Mallat algorithm tree [14]. Fig.…”

Section: D Wavelet Packet Transformmentioning

confidence: 99%

“…only storing selected single cardiac cycle clips rather than continuous recordings), a typical study can be reduced to approximately 50 MB, still requiring approximately 10 GB of daily storage at the Cleveland Clinic. While MPEG-1 and MPEG-2, motion picture compression standards, have been clinically validated at compression ratios up to 100:1 [6,7], they have not been accepted as part of the DICOM standard.…”

Section: Introductionmentioning

confidence: 99%

Compression of pre-scan-converted echocardiographic video using wavelet packet and integer wavelet transforms

Hang

Greenberg

Thomas

2006

Image and Vision Computing

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Comparison of mpeg-1 digital videotape with digitized svhs videotape for quantitative echocardiographic measurements

Cited by 21 publications

References 14 publications

Routine tests for both planning and evaluating image quality in tele-echocardiography

Routine tests for both planning and evaluating image quality in tele-echocardiography

High-Throughput Digitization of Analog Human Echocardiography Data

Compression of pre-scan-converted echocardiographic video using wavelet packet and integer wavelet transforms

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