Detection of cervical spine fracture on computed radiography images a monitor resolution study.
Rationale and Objectives: The purpose of this study was to evaluate the diagnostic accuracy of radiologists using monochrome medical-grade 5 megapixel (MP), 3 MP, 2 MP, and 1 MP displays for the detection of cervical fractures on cervical radiographs, while controlling factors such as luminance and...
| Published in: | Academic Radiology Vol. 18; no. 3; pp. 353 - 359 |
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| Main Authors: | , , , , , , , , , |
| Format: | research Journal Article |
| Published: |
Elsevier B.V.
Mar2011
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104811919&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104811919 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10766332 T4X jtl: Academic Radiology issn: 10766332 maglogo: N pubinfo: dt: Mar2011 vid: 18 iid: 3 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 104811919 104811919 NLM21215662 2010936007 10.1016/j.acra.2010.11.011 NLM21215662 104811919 ppf: 353 ppct: 6 formats: tig: atl: Detection of cervical spine fracture on computed radiography images a monitor resolution study. aug: au: Awan O Safdar NM Siddiqui KM Moffitt R Siegel EL Awan, Omer Safdar, Nabile M Siddiqui, Khan M Moffitt, Ryan Siegel, Eliot L affil: Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, 22 South Greene Street, Baltimore, MD 21201, USA sug: subj: Cervical Vertebrae Injuries Cervical Vertebrae Radiography Computer Terminals Radiographic Image Enhancement Equipment and Supplies Spinal Fractures Radiography Adult Aged Aged, 80 and Over Equipment Design Equipment Failure Female Human Male Middle Age Observer Bias Reproducibility of Results Sensitivity and Specificity Young Adult Adult: 19-44 years Aged: 65+ years Aged, 80 & over Middle Aged: 45-64 years Female Male ab: Rationale and Objectives: The purpose of this study was to evaluate the diagnostic accuracy of radiologists using monochrome medical-grade 5 megapixel (MP), 3 MP, 2 MP, and 1 MP displays for the detection of cervical fractures on cervical radiographs, while controlling factors such as luminance and ambient conditions. Materials and Methods: Institutional review board approval was obtained. Two hundred lateral cervical computed radiography images, 97 with fractures, were randomly displayed on 5-MP, 3-MP, 2-MP, or 1-MP liquid crystal displays (LCDs) for a total of 450 interpretations per display. These radiographs were presented in eight sessions, each with 25 radiographs, to nine readers. The reference standard for all cases was computed tomography. Ambient lighting, monitor luminance, and gamma were controlled throughout the study. Measures included receiver operator characteristic areas under the curve (AUC), sensitivity, specificity, and accuracy, mean elapsed time by display, and mean confidence level by display. One way analysis of variance was performed. Results were considered to be significant at an alpha level of 0.05. Results: AUCs were 0.76 (95% CI, 0.72-0.80) for the 1 MP, 0.80 (95% CI, 0.76-0.84) for the 2 MP, 0.77 (95% CI, 0.73-0.81) for the 3 MP, and 0.76 (95% CI, 0.72-0.80) for the 5 MP medical grade LCDs. There was no significant difference in the AUCs (P values between .0651 and .8693), confidence (P = .158), or interpretation times (P = .751). Conclusion: When controlling factors such as luminance and ambient light, a difference in accuracy in the detection of cervical fractures by resolution could not be detected when using medical-grade displays. Interpretation time and confidence were also not affected by resolution. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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