PACS: the second time around

Foord, K. D.

doi:10.1016/s0720-048x(99)00132-1

Cited by 9 publications

(8 citation statements)

References 4 publications

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“…The precise implications for costs and changed routines are unclear (Lee et al 1991, Reiner et al 2000, Maass et al 2001, Scholl et al 2001. Even without being able to foresee all the consequences, this seems to offer great advantages in terms of making, storing, retrieving and analyzing images (Dooley et al 1992, Foord 1999, Gross-Fengels et al 2002, Pilling 2002, Reiner and Siegel 2002. Such a system also allows the orthopedic surgeon to carry out digital preoperative planning for total hip and knee arthroplasties.…”

Section: Discussionmentioning

confidence: 99%

Comparison of analog and digital preoperative planning in total hip and knee arthroplasties

2005

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Introduction Digital correction of the magnification factor is expected to yield more accurate and reliable preoperative plans. We hypothesized that digital templating would be more accurate than manual templating for total hip and knee arthroplasties.Patients and methods Firstly, we established the interobserver and intraobserver reliability of the templating procedure. The accuracy and reliability of digital and analog plans were measured in a series of 238 interventions, which were all planned using both techniques.Results Interobserver reliability was good for the planning of knee arthroplasties (κ-values 0.63-0.75), but not more than moderate for the planning of hip arthroplasties (κ-values 0.22-0.54). Analog plans of knee arthroplasties systematically underestimated the component sizes (1.1 size on average), while the digital procedure proved to be accurate (0.1-0.4 size too small on average). The following figures show percentage of cases receiving a correct implant, allowing an error of one size. Digital templating of the hip arthroplasty was less frequently correct (cemented cup and stem: 72% and 79%; uncemented cup and stem: 52% and 66%) than analog planning (cemented cup and stem: 73% and 89%; uncemented cup and stem: 64% and 52%).Interpretation Planning of component sizes for total knee arthroplasties is an accurate procedure when performed digitally. Our digital preoperative plans which were performed by someone other than the surgeon were less accurate than the analog plans prepared by the surgeon.

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Section: Discussionmentioning

confidence: 99%

Comparison of analog and digital preoperative planning in total hip and knee arthroplasties

2005

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“…analyzing images. [12][13][14][15][16] It allows the orthopaedic surgeon to construct digital preoperative plans on plain pelvic x rays for total hip arthroplasties. This demands accurate calibration to correct the magnification factor of the projection of the hip joint.…”

Section: Discussionmentioning

confidence: 99%

Digital correction of magnification in pelvic x rays for preoperative planning of hip joint replacements: Theoretical development and clinical results of a new protocol

Diercks

Stewart²,

Ooijen

et al. 2005

Medical Physics

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The introduction of digital radiological facilities leads to the necessity of digital preoperative planning, which is an essential part of joint replacement surgery. To avoid errors in the preparation and execution of hip surgery, reliable correction of the magnification of the projected hip is a prerequisite. So far, no validated method exists to accomplish this. We present validated geometrical models of the x-ray projection of spheres, relevant for the calibration procedure to correct for the radiographic magnification. With help of these models a new calibration protocol was developed. The validity and precision of this procedure was determined in clinical practice. Magnification factors could be predicted with a maximal margin of error of 1.5%. The new calibration protocol is valid and reliable. The clinical tests revealed that correction of magnification has a 95% margin of error of -3% to +3%. Future research might clarify if a strict calibration protocol, as presented in this study, results in more accurate preoperative planning of hip joint replacements.

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“…The potential of this information technology has been well documented, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] primarily by groups that, according to the diffusion of innovation theory, 17 can be categorized as innovators and early adopters. But, will the hospitals that follow in their footsteps, referred to as "the late majority" using this theoretical framework, achieve the same results without the presence of the innovators but building on their experience?…”

Section: Introductionmentioning

confidence: 99%

Introducing PACS to the Late Majority. A Longitudinal Study

et al. 2008

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The purpose of this study was to study whether the benefits from introducing a picture archiving and communication systems (PACS) reported by innovators and early adopters also can be achieved by a hospital belonging to the "late majority" and to see whether such benefits are sustained, using report turnaround time (RTAT) as an indicator. Activity-related data was retrieved from the radiology information system (RIS) over a 2-year period. The median RTAT for preliminary reports was initially reduced from 12 to 2 h then increased to 3 h. For final reports, the median RTAT was initially reduced from 23 to 13 h then gradually reverted back to 22 h. Innovators and early adopters demonstrate not only that positive results can be achieved but also the importance of involving key personnel. We believe that such involvement and the focus on wider organizational concerns are important when introducing PACS to the late majority, both for achieving and sustaining positive results.

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PACS: the second time around

Cited by 9 publications

References 4 publications

Comparison of analog and digital preoperative planning in total hip and knee arthroplasties

Comparison of analog and digital preoperative planning in total hip and knee arthroplasties

Digital correction of magnification in pelvic x rays for preoperative planning of hip joint replacements: Theoretical development and clinical results of a new protocol

Introducing PACS to the Late Majority. A Longitudinal Study

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