Image-based selection bias can exis

Image-based selection bias can exist
when the inclusion of subjects is dependent
on their having undergone a certain
imaging study. This is a common
bias in the radiology literature, where
study populations are often selected on
the basis of availability for imaging studies.
This situation may also arise when a
subject undergoes imaging at a community
hospital but is treated at a tertiary
care center and the examination results
are not available for review. The study
population may differ from those with
the same disease or exposure but who
did not undergo the imaging study or for
whom the study is not available. Therefore,
the study population may not be
truly representative of the target population.
Another form of this selection
bias is when the interpretation of a test
relies to some extent on real-time viewing
(eg, endoscopy, fluoroscopy, ultrasonography).
In a retrospective study,
only selected images are typically available
for review (25).

ผลลัพธ์ (อังกฤษ) 2:

Image-based selection bias Can exist
when the inclusion of subjects is dependent
on their having undergone a certain
Imaging Study. This is a common
bias in the radiology literature, where
Study populations are often selected on
the basis of Availability for Imaging Studies.
This situation May also ARISE when a
subject undergoes Imaging at a Community
Hospital but is treated at a tertiary
Care Center and the Examination. results
are not available for review. Study the
population differ from those May with
the disease or exposure Same Who but
did not undergo the Imaging Study or for
whom the Study is not available. Therefore,
the Study population May not be
Truly representative of the Target population.
Another form of this selection
bias is when the Interpretation of a Test
Relies to Some extent on Real-time viewing
(eg, endoscopy, fluoroscopy, ultrasonography).
In a retrospective. Study,
only selected images are typically available
for review (25).