Original QUADAS item | Additions for the structural neuroimaging review |
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1. Was the spectrum of patients representative of the patients who will receive the test in practice? | Â |
2. Were selection criteria clearly described? | A. Were patients recruited consecutively? |
3. Is the reference standard likely to correctly classify the target condition? | Removed for the neuro-imaging review |
4. Is the time period between reference standard and index test short enough to be reasonably sure that the target condition did not change between the two tests? | Â |
5. Did the whole sample or a random selection of the sample, receive verification using a reference standard of diagnosis? | Â |
6. Did patients receive the same reference standard regardless of the index test result? | Â |
7. Was the reference standard independent of the index test (the index test did not form part of the reference standard)? | Removed for the neuro-imaging review |
8. Was the execution of the index test described in sufficient detail to permit replication of the test? | Â |
9. Was the execution of the reference standard described in sufficient detail to permit replication of the test? | D. Who performed the clinical evaluation and image analysis? |
10. Were the index test results interpreted without knowledge of the results of the reference standard? | C. Was the study and/or collection of clinical variables conducted prospectively? |
11. Were the reference standard results interpreted without knowledge of the results of the index test? | Â |
12. Were the same clinical data available when test results were interpreted as would be available when the test is used in practice? | Â |
13. Were uninterpretatable/intermediate test results reported? | Â |
14. Were withdrawals from the study explained? | B What was the explanation for patients who did not receive CT or MRI? |