Scheidler: Diagnostic accuracy data
In metamisc: Meta-Analysis of Diagnosis and Prognosis Research Studies
Scheidler R Documentation
Diagnostic accuracy data
Description
Data frame with diagnostic accuracy data from three imaging techniques for the diagnosis of lymph node metastasis in women with cervical cancer.
Usage
data("Scheidler")
Format
One data frame with 6 variables.
- author
string . author of article
- modality
integer . type of test (1=CT, 2=LAG, 3=MRI)
- TP
integer. number of true positives
- FN
integer. number of false negatives
- FP
integer. number of false positives
- TN
integer. number of true negatives
Details
The Scheidler data comprises the results from a meta-analysis where three imaging techniques for the diagnosis of lymph node metastasis in women with cervical cancer are compared. Forty-four studies in total were included: 17 studies evaluated lymphangiography, another 17 studies examined computed tomography and the remaining 10 studies focused on magnetic resonance imaging. Diagnosis of metastatic disease by lymphangiography (LAG) is based on the presence of nodal-filling defects, whereas computed tomography (CT) and magnetic resonance imaging (MRI) rely on nodal enlargement.
Source
Scheidler J, Hricak H, Yu KK, Subak L, Segal MR. Radiological evaluation of lymph node metastases in patients with cervical cancer. A meta-analysis. Journal of the American Medical Association 1997; 278: 1096–1101.
Reitsma J, Glas A, Rutjes A, Scholten R, Bossuyt P, Zwinderman A. Bivariate analysis of sensitivity and specificity produces informative summary
measures in diagnostic reviews. Journal of Clinical Epidemiology 2005; 58: 982–990.
metamisc documentation built on Sept. 25, 2022, 5:05 p.m.
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| Scheidler | R Documentation |
Diagnostic accuracy data
Description
Data frame with diagnostic accuracy data from three imaging techniques for the diagnosis of lymph node metastasis in women with cervical cancer.
Usage
data("Scheidler")
Format
One data frame with 6 variables.
- author
string . author of article
- modality
integer . type of test (1=CT, 2=LAG, 3=MRI)
- TP
integer. number of true positives
- FN
integer. number of false negatives
- FP
integer. number of false positives
- TN
integer. number of true negatives
Details
The Scheidler data comprises the results from a meta-analysis where three imaging techniques for the diagnosis of lymph node metastasis in women with cervical cancer are compared. Forty-four studies in total were included: 17 studies evaluated lymphangiography, another 17 studies examined computed tomography and the remaining 10 studies focused on magnetic resonance imaging. Diagnosis of metastatic disease by lymphangiography (LAG) is based on the presence of nodal-filling defects, whereas computed tomography (CT) and magnetic resonance imaging (MRI) rely on nodal enlargement.
Source
Scheidler J, Hricak H, Yu KK, Subak L, Segal MR. Radiological evaluation of lymph node metastases in patients with cervical cancer. A meta-analysis. Journal of the American Medical Association 1997; 278: 1096–1101.
Reitsma J, Glas A, Rutjes A, Scholten R, Bossuyt P, Zwinderman A. Bivariate analysis of sensitivity and specificity produces informative summary measures in diagnostic reviews. Journal of Clinical Epidemiology 2005; 58: 982–990.
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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