Pulmonary nodules: effect of increased data sampling on detection with spiral CT and confidence in diagnosis.

Abstract

PURPOSE To compare spiral computed tomography (CT) with interscan spacing of 4-5 mm versus 8-10 mm for detection rate and level of confidence in diagnosis of pulmonary nodules. MATERIALS AND METHODS Four radiologists (two junior and two senior faculty members) retrospectively reviewed 67 spiral CT studies with one to six nodules per study. Every second image was masked, which resulted in 8-mm sections every 8 or 10 mm; then all images reconstructed every 4 or 5 mm were reviewed. Lesions were classified as definite, probable, or possible. RESULTS Narrow interscan spacing yielded more lesions overall (583 vs 566, P < .025) and more definite lesions and fewer equivocal lesions (482 vs 431 and 101 vs 135, respectively; P < .055). The greatest effects were in the reduction of possible lesions (50 vs 88, P < .001) and in the reduction of false-positive diagnoses made by less experienced radiologists. CONCLUSION Increased reconstruction frequency of spiral CT volume data sets improves detection of pulmonary nodules and enhances confidence in the diagnosis.

010002000'97'99'01'03'05'07'09'11'13'15'17
Citations per Year

5,729 Citations

Semantic Scholar estimates that this publication has 5,729 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@article{Buckley1995PulmonaryNE, title={Pulmonary nodules: effect of increased data sampling on detection with spiral CT and confidence in diagnosis.}, author={Joyce A Buckley and William W. Scott and Stanley S. Siegelman and Janet E. Kuhlman and Bruce A. Urban and David A. Bluemke and Elliot K. Fishman}, journal={Radiology}, year={1995}, volume={196 2}, pages={395-400} }