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Proceedings Paper

Impact of volumetric ultrasound on PACS
Author(s): Steven Horii M.D.; Alberto Goldszal; Regina Redfern; Beverly Coleman; Jill Langer; Dan Morton; Susan Rowling; William Boonn; Christopher Iyoob
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Paper Abstract

The purpose of this study was to determine if the size of ultrasound examinations was increasing over time. The primary reasons for this are believed to be an increased number of images per study, the incorporation of "cine loops", and increased use of color flow Doppler. The result of this study, if it supports the hypothesis that ultrasound study size is increasing, would be directly applicable to planning for future expansion of storage in the Ultrasound PACS. Data were obtained from the ultrasound PACS server for number of studies, number of images, and total stored volume for sampled months (January and July of 2003 - 2006). The investigators believed that these months would provide a reasonable sample of study size as examination types did not vary significantly from month to month (based on Departmental statistics). The Radiology Department's information system (RIS) was used to determine total yearly ultrasound examination volume to determine the trend over time. Because no protected health information (PHI) was to be used in this study, the investigators believed that no IRB approval was necessary. The number of studies done per month was more variable than the investigators had believed. One month in particular (July, 2003) had an anomalously large number of studies. However, despite this, computations of the number of images per study, the total data volume per study, and the average amount of data per image did show an increasing trend as expected. Also, the total volume of data stored showed an increasing trend over the study time period. The investigators' hypothesis that examination size is increasing has been demonstrated to be true for the months sampled. From Departmental data, the investigators know that the most recent ultrasound yearly volume increased approximately ten percent over the previous year, and that trend was also seen for the study period (from 7-10 percent per year increase in volume). With the information that the examination size is also increasing, the Department can make better plans for future expansion of the Ultrasound PACS storage system. Ultrasound examination size is increasing, largely because of the increased use of cine loops. A change to using more of these to replace single static images will further increase examination size.

Paper Details

Date Published: 8 March 2006
PDF: 6 pages
Proc. SPIE 6145, Medical Imaging 2006: PACS and Imaging Informatics, 614512 (8 March 2006); doi: 10.1117/12.657135
Show Author Affiliations
Steven Horii M.D., Univ. of Pennsylvania Medical Ctr. (United States)
Alberto Goldszal, Univ. of Pennsylvania Medical Ctr. (United States)
Regina Redfern, Univ. of Pennsylvania Medical Ctr. (United States)
Beverly Coleman, Univ. of Pennsylvania Medical Ctr. (United States)
Jill Langer, Univ. of Pennsylvania Medical Ctr. (United States)
Dan Morton, Univ. of Pennsylvania Medical Ctr. (United States)
Susan Rowling, Univ. of Pennsylvania Medical Ctr. (United States)
William Boonn, Univ. of Pennsylvania Medical Ctr. (United States)
Christopher Iyoob, Univ. of Pennsylvania Medical Ctr. (United States)


Published in SPIE Proceedings Vol. 6145:
Medical Imaging 2006: PACS and Imaging Informatics
Steven C. Horii; Osman M. Ratib, Editor(s)

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