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Spiral CT of the Chest: Comparison of Cine and Film-based Viewing

Institution:
Department of Radiology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA.
Publisher:
Radiology
Publication Date:
Oct-1995
Volume Number:
197
Issue Number:
1
Pages:
73-78
Citation:
Radiology. 1995 Oct;197(1):73-8.
PubMed ID:
7568857
Appears in Collections:
SPL
Sponsors:
T32 CA009536/CA/NCI NIH HHS/United States
R01 CA043114/CA/NCI NIH HHS/United States
Generated Citation:
Seltzer S.E., Judy P.F., Adams D.F., Jacobson F.L., Stark P., Kikinis R., Swensson R.G., Hooton S., Head B., Feldman U. Spiral CT of the Chest: Comparison of Cine and Film-based Viewing. Radiology. 1995 Oct;197(1):73-8. PMID: 7568857.
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To determine radiologists' ability to find lung nodules on spiral computed tomographic (CT) scans of the chest with both rapid sequential (cine) and conventional film-based viewing. MATERIALS AND METHODS: Eight radiologists searched for lung nodules on spiral CT images (10-mm collimation, 10 mm/sec table speed) presented in two formats. Cine viewing was performed at a computer work-station; sections were viewed in 2-mm increments at frame rates up to 10 frames per second. Film-based viewing of images from a laser printer was performed with a lightbox; sections were viewed at 4-mm increments. Eight 3-5-mm-diameter simulated nodules were superimposed on each of five normal CT scans. RESULTS: Radiologists found a higher fraction of nodules with the cine presentation than with film (mean, 0.69±0.02 [standard error] versus 0.58±0.03, respectively [P = .006]). Diameter thresholds for nodule detection (50% correctly localized) were 3.3 and 3.5 mm, respectively. CONCLUSION: Cine viewing of spiral CT images of the chest improved radiologists' ability to detect nodules.

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