Transcript Digital Imaging for the Next Millenium

Digital Imaging in Dentistry
Applications and Challenges
S. Brent Dove, DDS, MS
University of Texas Health Science Center
“A picture is worth a thousand words”
“Knowledge is valuable”
“Don’t waste it”
Digital Dental Radiology
 Intra-oral
 Panoramic
 Cephalometric
 Sinus
and Skull
 Tomography
 CT
 MRI
Advantages of Digital Radiology
 No
Darkroom
 No Chemical Processing
 Lower Cost Per Image
 Instant Viewing of Images
 Less Radiation to Patient
 Image Processing and Analysis
 Transmission of Images for Consultation
CCD/CMOS-based Sensor
X-ray
Beam
Scintillator
Fiber Optics
CCD
High Resolution = 22.5
Standard
&
High
Resolution
#2
High
#1
Standard = 45
Standard
#0
CCD/CMOS - 45
CCD/CMOS - 22
Storage Phosphor
X-ray
Beam
Imaging Plate
Storage Phosphor
Helium-Neon
Laser
Photoreceptor
Imaging Plate
Storage Phosphor
Storage Phosphor
Diagnostic Accuracy
 Primary
Dental Caries
 Recurrent
Dental Caries
 Periodontal
 Periapical
Disease
Lesions
 Endodontic
File Length Determination
CCD Extra-oral Radiograpy
Tomography
Panoramic Radiography
Cephalometric Radiography
The Next Generation
Three Dimensional Imaging
 TACT
 Small
Volume CT
TACT™ Methodology
Series of images
taken from
different
angles
Slices of a maxillary molar
Small Volume CT
Small Volume CT
Small Volume CT
The Future is Full of Possibilities
 Optical
 Laser
 3D
Biopsy
Computed Tomography
Ultrasound
 Laser
Fluorescence
 Computer-based
FOTI
Computer Aided Diagnosis
(CAD)
 Observational
Errors
 Misinterpretation
 Integration
 Most
Errors
of Data Errors
Beneficial in Observational Errors
“CAD systems do not
necessarily have to be better
than the clinician, just help
him not miss obvious
lesions.”
Computer Aided Diagnosis
(CAD)
 PAP Cytology
& Oral Brush Biopsy
 Mammography
 Chest
X-ray Screening
 Periodontal
 Dental
Disease
Caries
Digital Subtraction Radiography
-
Neural Network Detection
Digital Dental Imaging
 Intra-oral
Radiography
 Panoramic Radiography
 Cephalometric Radiography
 Tomography
 Intra-oral Photography
 Extra-oral Photography
 Histology & Surgical Microscopy
Interoperability ????????
The DICOM Standard
The Digital Imaging and Communications in
Medicine (DICOM) Standard is a detailed
specification that describes semantics and
syntax for exchanging images and associated
information. The standard applies to the
operation of the interface which is used to
transfer data in and out of an imaging device.
DICOM Workflow
DICOM Display
Workstation
LiteBox
Storage, Query/Retrieve,
Study Component
Query/Retrieve
Results Management
Media Exchange
DICOM
Acquisition
Print Management
DICOM
Archive
Query/Retrieve,
Patient & Study
What is DICOM
 Digital
Imaging and Communication in
Medicine
 Standard
for communication of images and
image related information between devices
 International
 All
in scope
biomedical imaging
 Voluntary
standard
DICOM is Biomedcial Informatics
 “the
storage, retrieval, sharing, and optimal
use of biomedical information, data, and
knowledge for problem solving and decision
making.” Edward Shortliffe
 “model
formation, implementation of the
model, application of implementaion to the
real world, evaluation of the implementation”
Titus Schleyer
DICOM, Informatics, Research
 Digital
X-ray
 Visible
Light
 Clinical
Trials
 Structured
Reporting
The Future is Full of
Possibilities