To address the biometric
verification component and determine which biometric system is the best for
given applications in the complex clinical environment, the fingerprint scan system was added on the LTVS to
run parallel with the facial recognition systems. Each solution was evaluated
and documented for the advantages and pitfalls in the clinical environment.
The fingerprint scanning system is added onto the FRS
(facial recognition system) to become FRSS (facial and fingerprint recognition system). Because of the modular design
of the LTVS, such a modification was not difficult to accomplish.
In the minimally invasive
spinal surgery (MISS) ePR system we discussed in Chapter 24, there was no
patient identification component to verify the person is the actual patient to
be operated on. After the MISS ePR had been in clinical evaluation for several
months, the surgery in charge suggested that a patient verification system be integrated with the ePR system. Since a surgical patient is mostly
immobile, there was no advantage to using the facial verification system, so we
decided to use the fingerprint scanning method. We learned a great
deal about the fingerprint scanning method, not only its
characteristics but also the method of integration with a larger imaging informatics
system, during the latter part of the LTVS development. In the previous environment
the fingerprint method had been developed as the
second patient verification system in addition to
the facial verification method. So it was not difficult to add this module to
the existing minimally invasive spinal surgery (MISS) ePR. This section
summarizes the development, operation procedure, and the current status.
In this chapter we discuss imaging
informatics by taking advantage of other existing information technologies (IT)
not necessary in medical imaging, and integrating them with medical imaging
advances. In particular, we present a location tracking and verification system
(LTVS) in clinical environment. Although technologies used in the LTVS are not
necessary in the cutting edge of medical imaging and in IT, the combination of
these technologies can help resolve patient workflow and patient protection
issues in the clinical environment that have been discussed in the imaging
informatics community for many years.
We start the presentation by defining what LTVS is and
why we need it. Currently available tracking, identification, and verification
technologies are introduced. We give a step-by-step modular system integration
of the LTVS—from the prototype design and development, to implementation and
clinical evaluation of the prototype in an outpatient imaging center, and to
cost analysis. The prototype was used to track the movement of the patients and
personnel to improve the efficiency in imaging procedure workflow, and
safeguard patients in the clinical environment. We conclude with a discussion
of a fingerprint scanning module for surgical patient
identification and verification to ensure that the person is the right patient
to be operated on.
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