Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Statistical combination schemes of repeated diagnostic test data.

Kelly H Zou1, Jui G Bhagwat, John A Carrino

  • 1Department of Radiology (L-2), Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA. zou@bwh.harvard.edu

Academic Radiology
|April 22, 2006
PubMed
Summary

Different schemes for combining diagnostic tests can optimize accuracy. The "and" scheme aids in ruling in diagnoses, "or" aids in ruling out, and "majority" is neutral.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Imaging of osteoarthritis-related bone marrow lesions in clinical trials.

Osteoarthritis imaging·2026
Same author

Multimodal Imaging Predictors of FEA-Derived Lumbar Vertebral Compression Strength.

Spine·2026
Same author

Cervical Paraspinal Muscle Parameters are Associated With Bone Mineral Density as Measured by Quantitative Computed Tomography and Vertebral Bone Quality in Preoperative Patients.

Spine·2026
Same author

Robotic-assisted Navigation Requiring Perioperative CT in Posterior Spinal Fusion and Instrumentation for Idiopathic Scoliosis Is Associated With Increased Overall Cumulative Effective Radiation Dose.

Journal of pediatric orthopedics·2026
Same author

Development of the Extended Lane and Sandu Score to Assess Osseous Repair.

Journal of orthopaedic research : official publication of the Orthopaedic Research Society·2025
Same author

Anatomical and Technical Considerations of CT-Guided C1-C2 Lateral Joint Injections: Technique, Pitfalls, and Risks.

Journal of pain research·2025

Area of Science:

  • Medical Imaging
  • Diagnostic Accuracy
  • Biostatistics

Background:

  • Repeated diagnostic tests require clear interpretation guidelines.
  • Combining multiple test results can enhance diagnostic performance.

Purpose of the Study:

  • To evaluate three schemes for combining diagnostic test results: "and" (A), "or" (O), and "majority" (M).
  • To determine the optimal scheme for improving diagnostic accuracy in medical imaging.

Main Methods:

  • A pilot study evaluated magnetic resonance imaging (MRI) pulse sequences for elbow medial collateral ligament injuries in 28 cadavers.
  • Six pulse sequences were analyzed, with artificially created lesions in eight specimens.
  • Images were scored on a five-point scale, and diagnostic agreement was quantified using kappa values.

Related Experiment Videos

Main Results:

  • The "majority" (M) scheme improved diagnostic accuracy when individual test sensitivity and specificity exceeded 0.5.
  • The "and" (A) scheme increased specificity (0.95-0.98) but decreased sensitivity (0.38-0.59).
  • The "or" (O) scheme increased sensitivity (0.53-0.79) but decreased specificity (0.91-0.98).

Conclusions:

  • The "and" scheme is recommended for ruling in diagnoses.
  • The "or" scheme is recommended for ruling out diagnoses.
  • The "majority" scheme offers a neutral approach, with different schemes optimizing diagnostic accuracy based on clinical needs.