Errata

"Disk-caused Nerve Compression in Patients with Acute Low-Back Pain: Diagnosis with MR, CT Myelography, and Plain CT." Radiology 1993; 186:731-738.

Page 731, in the abstract, the words "...a panel of two expert radiologists" should be replaced with "an expert panel." The panel comprised a neurologist and a neurologic surgeon. Page 733, column 2, the correct initials of the methods expert are not "P.G.F." but "D.G.F." (Dennis G. Fryback, coauthor), and "poshpsible" is a typographical error for "possible." Page 733, column 3, "Oblique, 45°, and 60° anteroposterior and lateral images...." should be "Oblique (45° and 60°), anteroposterior, and lateral images...." Page 734, Table 2, n = 63 for CT myelogram and MR pained images instead of n = 64. Page 737, column 1, "myograms" should be "myelogram images." Page 735, Figures 1-3 should have appeared as below.

[See Figure in the PDF File]

Figures 1-3. (1) ROC curves for the 32 cases evaluated with plain CT and MR. The data used to construct the curves were (a) the blinded reading diagnostic certainty ratings for HNPNC for the disk space with the highest rating and (b) the reference-standard panel forced-choice diagnoses with all outcome information other than imaging. Thus, each patient is one observation for this analysis. (2) ROC curves for 63 patients evaluated with CT myelography and MR. (3) ROC curves comparing CT and MR for all 95 patients in the study. CT refers generically to the CT procedure—either plain CT or CT myelography—used for each patient. The two types of CT examinations are not distinguished for this analysis. Parametric ROC curves were computed to display for all figures by means of the methods of England (21). Solid line = MR, dotted line = CT.